Plasma not launching at first two tries from lightdm

I have a problem running Plasma from lightdm on Manjaro.

This issue has been around for a few updates, but I couldn’t pin it down exactly when it happened. I know that I switched from SDDM to lightdm after I discovered the problem.

The problem is reproducible each time I restart and always follows the same pattern. After a proper launch of Plasma, no other unusual symptoms have been observed.

Scenario

I launch the computer from cold boot, I log in via lightdm.

First launch

  • A qt-based application I have in autostart uses the wrong theme different theme (keepassxc)
  • KDE’s application launcher which I have in a bar doesn’t respond to the “meta” shortcut
  • Overall sluggish experience
  • If I kept this session, over time I’d notice some keyboard shortcuts not responding, and some applications spawning but not showing their window

Second launch

  • An Xorg native(?) window says that plasma failed to launch, desktop is not shown, upon clicking okay I return to lightdm

Third launch

  • Desktop is responsive and as expected

Reports

List of all services enabled

atd.service                                                               enabled         disabled
bluetooth.service                                                         enabled         disabled
cronie.service                                                            enabled         disabled
duplicati.service                                                         enabled         disabled
getty@.service                                                            enabled         enabled
haveged.service                                                           enabled         disabled
lightdm.service                                                           enabled         disabled
lm_sensors.service                                                        enabled         disabled
ModemManager.service                                                      enabled         disabled
NetworkManager-dispatcher.service                                         enabled         disabled
NetworkManager-wait-online.service                                        enabled         disabled
NetworkManager.service                                                    enabled         disabled
privoxy.service                                                           enabled         disabled
rpc-statd.service                                                         enabled-runtime disabled
sshd.service                                                              enabled         disabled
suspend-usb-fix.service                                                   enabled         disabled
systemd-boot-update.service                                               disabled        enabled
systemd-fsck-root.service                                                 enabled-runtime disabled
systemd-homed.service                                                     disabled        enabled
systemd-network-generator.service                                         disabled        enabled
systemd-networkd-wait-online.service                                      disabled        enabled
systemd-networkd.service                                                  disabled        enabled
systemd-pstore.service                                                    disabled        enabled
systemd-remount-fs.service                                                enabled-runtime disabled
systemd-resolved.service                                                  disabled        enabled
systemd-timesyncd.service                                                 enabled         enabled
systemd-journald-audit.socket                                             disabled        enabled
systemd-userdbd.socket                                                    disabled        enabled
machines.target                                                           disabled        enabled
reboot.target                                                             disabled        enabled
remote-cryptsetup.target                                                  disabled        enabled
remote-fs.target                                                          enabled         enabled
pamac-cleancache.timer                                                    enabled         disabled
pamac-mirrorlist.timer                                                    enabled         disabled
pkgfile-update.timer                                                      enabled         disabled

uname

Linux desktop 6.5.11-1-MANJARO #1 SMP PREEMPT_DYNAMIC Thu Nov  9 02:34:53 UTC 2023 x86_64 GNU/Linux

inxi

System:
  Kernel: 6.5.11-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 13.2.1
    clocksource: tsc available: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.5-x86_64
    root=UUID=241227a5-8577-4d5e-8e22-a7a71811402d rw acpi_osi=!
    "acpi_osi=Windows 2015" quiet splash
    resume=UUID=1b3384a0-ba34-41af-86aa-c7969bda3901 udev.log_priority=3
  Desktop: KDE Plasma v: 5.27.9 tk: Qt v: 5.15.11 wm: kwin_x11 vt: 7 dm:
    1: GDM v: 45.0.1 note: stopped 2: LightDM v: 1.32.0 3: SDDM note: stopped
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: ASRock model: B660M-ITX/ac serial: <superuser required>
    UEFI: American Megatrends LLC. v: 5.03 date: 09/06/2022
Battery:
  Device-1: hidpp_battery_0 model: Logitech Performance MX serial: <filter>
    charge: 10% (should be ignored) rechargeable: yes status: discharging
Memory:
  System RAM: total: 16 GiB note: est. available: 15.39 GiB
    used: 12.22 GiB (79.4%)
  RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: 12th Gen Intel Core i5-12600K bits: 64 type: MST AMCP
    arch: Alder Lake gen: core 12 level: v3 note: check built: 2021+
    process: Intel 7 (10nm ESF) family: 6 model-id: 0x97 (151) stepping: 2
    microcode: 0x32
  Topology: cpus: 1x cores: 10 mt: 6 tpc: 2 st: 4 threads: 16 smt: enabled
    cache: L1: 864 KiB desc: d-4x32 KiB, 6x48 KiB; i-6x32 KiB, 4x64 KiB
    L2: 9.5 MiB desc: 6x1.2 MiB, 1x2 MiB L3: 20 MiB desc: 1x20 MiB
  Speed (MHz): avg: 938 high: 1466 min/max: 800/4900:3600 scaling:
    driver: intel_pstate governor: powersave cores: 1: 948 2: 800 3: 783 4: 1004
    5: 812 6: 1362 7: 800 8: 875 9: 1466 10: 1272 11: 801 12: 800 13: 901
    14: 799 15: 800 16: 800 bogomips: 118000
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
    arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
    bts clflush clflushopt clwb cmov constant_tsc cpuid cpuid_fault cx16 cx8
    de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est f16c flexpriority
    flush_l1d fma fpu fsgsbase fsrm fxsr gfni hfi ht hwp hwp_act_window
    hwp_epp hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ibt ida intel_pt
    invpcid lahf_lm lm mca mce md_clear mmx monitor movbe movdir64b movdiri
    msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pclmulqdq pconfig pdcm
    pdpe1gb pebs pge pku pln pni popcnt pse pse36 pts rdpid rdrand rdseed
    rdtscp rep_good sdbg sep serialize sha_ni smap smep smx split_lock_detect
    ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tme tpr_shadow
    tsc tsc_adjust tsc_deadline_timer tsc_known_freq umip vaes vme vmx vnmi
    vpclmulqdq vpid waitpkg x2apic xgetbv1 xsave xsavec xsaveopt xsaves
    xtopology xtpr
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Enhanced / Automatic IBRS, IBPB: conditional,
    RSB filling, PBRSB-eIBRS: SW sequence
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GP106 [GeForce GTX 1060 6GB] driver: nvidia v: 535.129.03
    alternate: nouveau,nvidia_drm non-free: 545.xx+ status: current (as of
    2023-11; EOL~2026-12-xx) arch: Pascal code: GP10x process: TSMC 16nm
    built: 2016-2021 pcie: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 01:00.0
    chip-ID: 10de:1c03 class-ID: 0300
  Display: x11 server: X.Org v: 21.1.9 with: Xwayland v: 23.2.2
    compositor: kwin_x11 driver: X: loaded: nvidia gpu: nvidia display-ID: :0
    screens: 1
  Screen-1: 0 s-res: 2560x1440 s-dpi: 122 s-size: 533x302mm (20.98x11.89")
    s-diag: 613mm (24.12")
  Monitor-1: Unknown-1 mapped: HDMI-0 res: 2560x1440 hz: 60 dpi: 124
    size: 526x296mm (20.71x11.65") modes: 800x600
  API: EGL Message: No EGL data available.
  API: OpenGL v: 4.6.0 vendor: nvidia v: 535.129.03 glx-v: 1.4
    direct-render: yes renderer: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2
    memory: 5.86 GiB
  API: Vulkan v: 1.3.269 layers: 5 device: 0 type: discrete-gpu name: NVIDIA
    GeForce GTX 1060 6GB driver: nvidia v: 535.129.03 device-ID: 10de:1c03
    surfaces: xcb,xlib
Audio:
  Device-1: Intel Alder Lake-S HD Audio vendor: ASRock driver: snd_hda_intel
    v: kernel alternate: snd_sof_pci_intel_tgl bus-ID: 00:1f.3 chip-ID: 8086:7ad0
    class-ID: 0403
  Device-2: NVIDIA GP106 High Definition Audio driver: snd_hda_intel
    v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 10de:10f1 class-ID: 0403
  Device-3: GYROCOM C&C NuForce µDAC 2
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 1-1.2:13 chip-ID: 1852:db96 class-ID: 0102
  API: ALSA v: k6.5.11-1-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: JACK v: 1.9.22 status: off tools: N/A
  Server-3: PipeWire v: 0.3.85 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Intel Alder Lake-S PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:7af0 class-ID: 0280
  IF: wlp0s20f3 state: down mac: <filter>
  Device-2: Intel Ethernet I219-V vendor: ASRock driver: e1000e v: kernel
    port: N/A bus-ID: 00:1f.6 chip-ID: 8086:1a1d class-ID: 0200
  IF: enp0s31f6 state: up speed: 100 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) driver: btusb v: 0.8
    type: USB rev: 2.0 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 1-14:7
    chip-ID: 8087:0aaa class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 1.37 TiB used: 399.74 GiB (28.5%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Intel model: SSDPEKNW010T8
    size: 953.87 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 002C temp: 39.9 C scheme: GPT
  ID-2: /dev/sda maj-min: 8:0 vendor: Kingston model: SA400S37480G
    size: 447.13 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
    tech: SSD serial: <filter> fw-rev: 66C5 scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 429.9 GiB size: 422.08 GiB (98.18%) used: 391.8 GiB (92.8%)
    fs: ext4 dev: /dev/sda2 maj-min: 8:2 label: N/A
    uuid: 241227a5-8577-4d5e-8e22-a7a71811402d
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 316 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1 label: N/A
    uuid: 03F7-33DD
  ID-3: /media/shibe-music raw-size: N/A size: 4.47 TiB
    used: 1.77 TiB (39.7%) fs: nfs4 remote: 192.168.88.251:/volume1/music
  ID-4: /media/shibe-video raw-size: N/A size: 4.47 TiB
    used: 1.77 TiB (39.7%) fs: nfs4 remote: 192.168.88.251:/volume1/video
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: yes
    compressor: zstd max-pool: 20%
  ID-1: swap-1 type: partition size: 16.93 GiB used: 7.93 GiB (46.8%)
    priority: -2 dev: /dev/sda3 maj-min: 8:3 label: swap
    uuid: 1b3384a0-ba34-41af-86aa-c7969bda3901
Unmounted:
  ID-1: /dev/nvme0n1p1 maj-min: 259:1 size: 100 MiB fs: vfat label: N/A
    uuid: E897-5FA0
  ID-2: /dev/nvme0n1p2 maj-min: 259:2 size: 16 MiB fs: <superuser required>
    label: N/A uuid: N/A
  ID-3: /dev/nvme0n1p3 maj-min: 259:3 size: 487.64 GiB fs: ntfs label: N/A
    uuid: 38E8B2CAE8B285A2
  ID-4: /dev/nvme0n1p4 maj-min: 259:4 size: 537 MiB fs: ntfs label: N/A
    uuid: 30401CCE401C9D22
  ID-5: /dev/nvme0n1p5 maj-min: 259:5 size: 465.59 GiB fs: ntfs label: Games
    uuid: 9AC4223FC4221E4F
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 16 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
  Hub-2: 1-1:12 info: Microchip (formerly SMSC) Hub ports: 4 rev: 2.1
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 0424:2744
    class-ID: 0900
  Device-1: 1-1.2:13 info: GYROCOM C&C NuForce µDAC 2 type: HID,audio
    driver: hid-generic,snd-usb-audio,usbhid interfaces: 3 rev: 1.1
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 500mA
    chip-ID: 1852:db96 class-ID: 0102
  Hub-3: 1-5:14 info: Genesys Logic Hub ports: 4 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
    chip-ID: 05e3:0608 class-ID: 0900
  Device-1: 1-5.3:15 info: Microdia TEMPer Temperature Sensor type: mouse
    driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 1.5 Mb/s (183 KiB/s)
    lanes: 1 mode: 1.0 power: 100mA chip-ID: 0c45:7401 class-ID: 0301
  Device-2: 1-5.4:16 info: Holtek USB-HID Keyboard type: keyboard,HID
    driver: hid-generic,usbhid interfaces: 4 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 04d9:0114 class-ID: 0300
  Device-3: 1-6:3 info: Logitech Unifying Receiver type: keyboard,mouse,HID
    driver: logitech-djreceiver,usbhid interfaces: 3 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 98mA
    chip-ID: 046d:c52b class-ID: 0300
  Device-4: 1-9:5 info: ASRock LED Controller type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 26ce:01a2 class-ID: 0300
    serial: <filter>
  Device-5: 1-14:7 info: Intel Bluetooth 9460/9560 Jefferson Peak (JfP)
    type: bluetooth driver: btusb interfaces: 2 rev: 2.0
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
    chip-ID: 8087:0aaa class-ID: e001
  Hub-4: 2-0:1 info: super-speed hub ports: 10 rev: 3.1
    speed: 20 Gb/s (2.33 GiB/s) lanes: 2 mode: 3.2 gen-2x2 chip-ID: 1d6b:0003
    class-ID: 0900
  Hub-5: 2-3:4 info: Microchip (formerly SMSC) Hub ports: 4 rev: 3.1
    speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 chip-ID: 0424:5744
    class-ID: 0900
Sensors:
  System Temperatures: cpu: 44.0 C mobo: N/A gpu: nvidia temp: 54 C
  Fan Speeds (rpm): fan-1: 878 fan-2: 405 fan-3: 0 fan-4: 0 fan-5: 0 fan-7: 0
    gpu: nvidia fan: 38%
Info:
  Processes: 420 Uptime: 1d 12h 5m wakeups: 1 Init: systemd v: 254
  default: graphical tool: systemctl Compilers: gcc: 13.2.1 clang: 16.0.6
  Packages: pm: pacman pkgs: 3018 libs: 532
  tools: gnome-software,octopi,pamac,yay,yup pm: flatpak pkgs: 0 Shell: Zsh
  v: 5.9 running-in: kitty inxi: 3.3.31

journalctl --boot=-1 --priority=3 --catalog --no-pager

lis 19 11:59:50 desktop kernel: hid-generic 0003:1852:DB96.000A: No inputs registered, leaving
lis 19 11:59:51 desktop (udev-worker)[408]: vhba_ctl: /usr/lib/udev/rules.d/60-linux65-vhba.rules:1 Only network interfaces can be renamed, ignoring NAME="vhba_ctl".
lis 19 11:59:51 desktop (udev-worker)[449]: vhba_ctl: /usr/lib/udev/rules.d/60-linux65-vhba.rules:1 Only network interfaces can be renamed, ignoring NAME="vhba_ctl".
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
lis 19 11:59:51 desktop kernel: 
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: timeout waiting for FW reset ACK (inta_hw=0x0)
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: Transport status: 0x0000004A, valid: 6
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: Loaded firmware version: 77.f92b5fed.0 so-a0-jf-b0-77.ucode
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x000082F0 | trm_hw_status0
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | trm_hw_status1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x004D2A06 | branchlink2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x004C92BE | interruptlink1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x004C92BE | interruptlink2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00011F5A | data1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x01000000 | data2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | data3
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | beacon time
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00015D23 | tsf low
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | tsf hi
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | time gp1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x000209F6 | time gp2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000001 | uCode revision type
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x0000004D | uCode version major
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0xF92B5FED | uCode version minor
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000430 | hw version
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00480002 | board version
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x8030FF00 | hcmd
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x20020000 | isr0
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | isr1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x58F00002 | isr2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00C0000C | isr3
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | isr4
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | last cmd Id
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00011F5A | wait_event
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | l2p_control
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | l2p_duration
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | l2p_mhvalid
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | l2p_addr_match
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000009 | lmpm_pmg_sel
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | timestamp
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000028 | flow_handler
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | ADVANCED_SYSASSERT
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac data1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac data2
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac data3
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac major
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | umac minor
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | frame pointer
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | stack pointer
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | last host cmd
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | isr status reg
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: IML/ROM dump:
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000B03 | IML/ROM error/state
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00004BC2 | IML/ROM data1
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000090 | IML/ROM WFPM_AUTH_KEY_0
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: Fseq Registers:
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x20000000 | FSEQ_ERROR_CODE
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x80320000 | FSEQ_TOP_INIT_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00010009 | FSEQ_CNVIO_INIT_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x7E9EFE8F | FSEQ_TOP_CONTENT_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00080401 | FSEQ_CNVI_ID
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000201 | FSEQ_CNVR_ID
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00080401 | CNVI_AUX_MISC_CHIP
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000201 | CNVR_AUX_MISC_CHIP
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00000000 | FSEQ_PREV_CNVIO_INIT_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x00320000 | FSEQ_WIFI_FSEQ_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x7F79B74C | FSEQ_BT_FSEQ_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: 0x000000FA | FSEQ_CLASS_TP_VERSION
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: UMAC CURRENT PC: 0x8047e450
lis 19 11:59:51 desktop kernel: iwlwifi 0000:00:14.3: LMAC1 CURRENT PC: 0xd0
lis 19 11:59:53 desktop kernel: Bluetooth: hci0: Malformed MSFT vendor event: 0x02
lis 19 12:00:08 desktop systemd[1]: Failed to mount /media/shibe-lan.
░░ Subject: A start job for unit media-shibe\x2dlan.mount has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit media-shibe\x2dlan.mount has finished with a failure.
░░ 
░░ The job identifier is 124 and the job result is failed.
lis 19 12:00:52 desktop lightdm[1115]: gkr-pam: unable to locate daemon control file
lis 19 12:00:57 desktop libddcutil[1464]: i2c_check_businfo_connector() failed for bus 5
lis 19 12:00:57 desktop libddcutil[1464]: busno=5, sleep-multiplier =  1,30. Testing for supported feature 0x10 returned Error_Info[EIO in ddc_write_read_with_retry, causes: EIO]
lis 19 12:01:34 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 242 and the job result is failed.
lis 19 12:01:34 desktop kwin_x11[2011]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
                                        
                                        Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
lis 19 12:01:34 desktop systemd-coredump[2018]: Process 2011 (kwin_x11) of user 1000 dumped core.
                                                
                                                Stack trace of thread 2011:
                                                #0  0x00007f13f01bf83c n/a (libc.so.6 + 0x8e83c)
                                                #1  0x00007f13f016f668 raise (libc.so.6 + 0x3e668)
                                                #2  0x00007f13f01574b8 abort (libc.so.6 + 0x264b8)
                                                #3  0x00007f13f10a00c2 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0xa00c2)
                                                #4  0x00007f13f173f402 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13f402)
                                                #5  0x00007f13f173fa79 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13fa79)
                                                #6  0x00007f13f129bc05 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bc05)
                                                #7  0x00007f13f173fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
                                                #8  0x00007f13f0975b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
                                                #9  0x00007f13f2c47f35 _ZN4KWin11ApplicationC2ENS0_13OperationModeERiPPc (libkwin.so.5 + 0x247f35)
                                                #10 0x0000559bbb218971 n/a (kwin_x11 + 0x3e971)
                                                #11 0x00007f13f0158cd0 n/a (libc.so.6 + 0x27cd0)
                                                #12 0x00007f13f0158d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                #13 0x0000559bbb21a425 n/a (kwin_x11 + 0x40425)
                                                
                                                Stack trace of thread 2013:
                                                #0  0x00007f13f0233f6f __poll (libc.so.6 + 0x102f6f)
                                                #1  0x00007f13eed6c276 n/a (libglib-2.0.so.0 + 0xb8276)
                                                #2  0x00007f13eed0c162 g_main_context_iteration (libglib-2.0.so.0 + 0x58162)
                                                #3  0x00007f13f12eaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
                                                #4  0x00007f13f129ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
                                                #5  0x00007f13f10f74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
                                                #6  0x00007f13f0736a9a n/a (libQt5DBus.so.5 + 0x18a9a)
                                                #7  0x00007f13f10f371a n/a (libQt5Core.so.5 + 0xf371a)
                                                #8  0x00007f13f01bd9eb n/a (libc.so.6 + 0x8c9eb)
                                                #9  0x00007f13f02417cc n/a (libc.so.6 + 0x1107cc)
                                                ELF object binary architecture: AMD x86-64
░░ Subject: Process 2011 (kwin_x11) dumped core
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ Documentation: man:core(5)
░░ 
░░ Process 2011 (kwin_x11) crashed and dumped core.
░░ 
░░ This usually indicates a programming error in the crashing program and
░░ should be reported to its vendor as a bug.
lis 19 12:01:34 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 409 and the job result is failed.
lis 19 12:01:35 desktop kwin_x11[2034]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
                                        
                                        Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
lis 19 12:01:36 desktop systemd-coredump[2047]: Process 2034 (kwin_x11) of user 1000 dumped core.
                                                
                                                Stack trace of thread 2034:
                                                #0  0x00007f82c4cac83c n/a (libc.so.6 + 0x8e83c)
                                                #1  0x00007f82c4c5c668 raise (libc.so.6 + 0x3e668)
                                                #2  0x00007f82c4c444b8 abort (libc.so.6 + 0x264b8)
                                                #3  0x00007f82c5aa00c2 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0xa00c2)
                                                #4  0x00007f82c613f402 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13f402)
                                                #5  0x00007f82c613fa79 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13fa79)
                                                #6  0x00007f82c5c9bc05 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bc05)
                                                #7  0x00007f82c613fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
                                                #8  0x00007f82c5375b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
                                                #9  0x00007f82c7647f35 _ZN4KWin11ApplicationC2ENS0_13OperationModeERiPPc (libkwin.so.5 + 0x247f35)
                                                #10 0x0000558249b49971 n/a (kwin_x11 + 0x3e971)
                                                #11 0x00007f82c4c45cd0 n/a (libc.so.6 + 0x27cd0)
                                                #12 0x00007f82c4c45d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                #13 0x0000558249b4b425 n/a (kwin_x11 + 0x40425)
                                                
                                                Stack trace of thread 2036:
                                                #0  0x00007f82c4d20f6f __poll (libc.so.6 + 0x102f6f)
                                                #1  0x00007f82c3b6c276 n/a (libglib-2.0.so.0 + 0xb8276)
                                                #2  0x00007f82c3b0c162 g_main_context_iteration (libglib-2.0.so.0 + 0x58162)
                                                #3  0x00007f82c5ceaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
                                                #4  0x00007f82c5c9ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
                                                #5  0x00007f82c5af74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
                                                #6  0x00007f82c5197a9a n/a (libQt5DBus.so.5 + 0x18a9a)
                                                #7  0x00007f82c5af371a n/a (libQt5Core.so.5 + 0xf371a)
                                                #8  0x00007f82c4caa9eb n/a (libc.so.6 + 0x8c9eb)
                                                #9  0x00007f82c4d2e7cc n/a (libc.so.6 + 0x1107cc)
                                                ELF object binary architecture: AMD x86-64
░░ Subject: Process 2034 (kwin_x11) dumped core
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ Documentation: man:core(5)
░░ 
░░ Process 2034 (kwin_x11) crashed and dumped core.
░░ 
░░ This usually indicates a programming error in the crashing program and
░░ should be reported to its vendor as a bug.
lis 19 12:01:36 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 430 and the job result is failed.
lis 19 12:01:36 desktop kwin_x11[2066]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
                                        
                                        Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
lis 19 12:01:36 desktop systemd-coredump[2079]: Process 2066 (kwin_x11) of user 1000 dumped core.
                                                
                                                Stack trace of thread 2066:
                                                #0  0x00007f97936ac83c n/a (libc.so.6 + 0x8e83c)
                                                #1  0x00007f979365c668 raise (libc.so.6 + 0x3e668)
                                                #2  0x00007f97936444b8 abort (libc.so.6 + 0x264b8)
                                                #3  0x00007f97946a00c2 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0xa00c2)
                                                #4  0x00007f9794d3f402 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13f402)
                                                #5  0x00007f9794d3fa79 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13fa79)
                                                #6  0x00007f979489bc05 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bc05)
                                                #7  0x00007f9794d3fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
                                                #8  0x00007f9793d75b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
                                                #9  0x00007f9796247f35 _ZN4KWin11ApplicationC2ENS0_13OperationModeERiPPc (libkwin.so.5 + 0x247f35)
                                                #10 0x000055dd46be1971 n/a (kwin_x11 + 0x3e971)
                                                #11 0x00007f9793645cd0 n/a (libc.so.6 + 0x27cd0)
                                                #12 0x00007f9793645d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                #13 0x000055dd46be3425 n/a (kwin_x11 + 0x40425)
                                                
                                                Stack trace of thread 2074:
                                                #0  0x00007f9793720f6f __poll (libc.so.6 + 0x102f6f)
                                                #1  0x00007f979236c276 n/a (libglib-2.0.so.0 + 0xb8276)
                                                #2  0x00007f979230c162 g_main_context_iteration (libglib-2.0.so.0 + 0x58162)
                                                #3  0x00007f97948eaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
                                                #4  0x00007f979489ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
                                                #5  0x00007f97946f74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
                                                #6  0x00007f979439fa9a n/a (libQt5DBus.so.5 + 0x18a9a)
                                                #7  0x00007f97946f371a n/a (libQt5Core.so.5 + 0xf371a)
                                                #8  0x00007f97936aa9eb n/a (libc.so.6 + 0x8c9eb)
                                                #9  0x00007f979372e7cc n/a (libc.so.6 + 0x1107cc)
                                                ELF object binary architecture: AMD x86-64
░░ Subject: Process 2066 (kwin_x11) dumped core
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ Documentation: man:core(5)
░░ 
░░ Process 2066 (kwin_x11) crashed and dumped core.
░░ 
░░ This usually indicates a programming error in the crashing program and
░░ should be reported to its vendor as a bug.
lis 19 12:01:36 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 451 and the job result is failed.
lis 19 12:01:36 desktop kwin_x11[2131]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
                                        
                                        Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
lis 19 12:01:36 desktop systemd-coredump[2136]: Process 2131 (kwin_x11) of user 1000 dumped core.
                                                
                                                Stack trace of thread 2131:
                                                #0  0x00007f67f98ac83c n/a (libc.so.6 + 0x8e83c)
                                                #1  0x00007f67f985c668 raise (libc.so.6 + 0x3e668)
                                                #2  0x00007f67f98444b8 abort (libc.so.6 + 0x264b8)
                                                #3  0x00007f67fa6a00c2 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0xa00c2)
                                                #4  0x00007f67fad3f402 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13f402)
                                                #5  0x00007f67fad3fa79 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13fa79)
                                                #6  0x00007f67fa89bc05 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bc05)
                                                #7  0x00007f67fad3fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
                                                #8  0x00007f67f9f75b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
                                                #9  0x00007f67fc247f35 _ZN4KWin11ApplicationC2ENS0_13OperationModeERiPPc (libkwin.so.5 + 0x247f35)
                                                #10 0x0000563708aa7971 n/a (kwin_x11 + 0x3e971)
                                                #11 0x00007f67f9845cd0 n/a (libc.so.6 + 0x27cd0)
                                                #12 0x00007f67f9845d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                #13 0x0000563708aa9425 n/a (kwin_x11 + 0x40425)
                                                
                                                Stack trace of thread 2132:
                                                #0  0x00007f67f9920f6f __poll (libc.so.6 + 0x102f6f)
                                                #1  0x00007f67f876c276 n/a (libglib-2.0.so.0 + 0xb8276)
                                                #2  0x00007f67f870c162 g_main_context_iteration (libglib-2.0.so.0 + 0x58162)
                                                #3  0x00007f67fa8eaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
                                                #4  0x00007f67fa89ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
                                                #5  0x00007f67fa6f74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
                                                #6  0x00007f67fab97a9a n/a (libQt5DBus.so.5 + 0x18a9a)
                                                #7  0x00007f67fa6f371a n/a (libQt5Core.so.5 + 0xf371a)
                                                #8  0x00007f67f98aa9eb n/a (libc.so.6 + 0x8c9eb)
                                                #9  0x00007f67f992e7cc n/a (libc.so.6 + 0x1107cc)
                                                ELF object binary architecture: AMD x86-64
░░ Subject: Process 2131 (kwin_x11) dumped core
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ Documentation: man:core(5)
░░ 
░░ Process 2131 (kwin_x11) crashed and dumped core.
░░ 
░░ This usually indicates a programming error in the crashing program and
░░ should be reported to its vendor as a bug.
lis 19 12:01:36 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 472 and the job result is failed.
lis 19 12:01:37 desktop kwin_x11[2145]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
                                        
                                        Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
lis 19 12:01:37 desktop systemd-coredump[2150]: Process 2145 (kwin_x11) of user 1000 dumped core.
                                                
                                                Stack trace of thread 2145:
                                                #0  0x00007f415ccac83c n/a (libc.so.6 + 0x8e83c)
                                                #1  0x00007f415cc5c668 raise (libc.so.6 + 0x3e668)
                                                #2  0x00007f415cc444b8 abort (libc.so.6 + 0x264b8)
                                                #3  0x00007f415daa00c2 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0xa00c2)
                                                #4  0x00007f415e13f402 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13f402)
                                                #5  0x00007f415e13fa79 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13fa79)
                                                #6  0x00007f415dc9bc05 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x29bc05)
                                                #7  0x00007f415e13fb26 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13fb26)
                                                #8  0x00007f415d375b9e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175b9e)
                                                #9  0x00007f415f647f35 _ZN4KWin11ApplicationC2ENS0_13OperationModeERiPPc (libkwin.so.5 + 0x247f35)
                                                #10 0x0000564194ea5971 n/a (kwin_x11 + 0x3e971)
                                                #11 0x00007f415cc45cd0 n/a (libc.so.6 + 0x27cd0)
                                                #12 0x00007f415cc45d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                #13 0x0000564194ea7425 n/a (kwin_x11 + 0x40425)
                                                
                                                Stack trace of thread 2146:
                                                #0  0x00007f415cd20f6f __poll (libc.so.6 + 0x102f6f)
                                                #1  0x00007f415b76c276 n/a (libglib-2.0.so.0 + 0xb8276)
                                                #2  0x00007f415b70c162 g_main_context_iteration (libglib-2.0.so.0 + 0x58162)
                                                #3  0x00007f415dceaf7c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2eaf7c)
                                                #4  0x00007f415dc9ae74 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x29ae74)
                                                #5  0x00007f415daf74f6 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf74f6)
                                                #6  0x00007f415d197a9a n/a (libQt5DBus.so.5 + 0x18a9a)
                                                #7  0x00007f415daf371a n/a (libQt5Core.so.5 + 0xf371a)
                                                #8  0x00007f415ccaa9eb n/a (libc.so.6 + 0x8c9eb)
                                                #9  0x00007f415cd2e7cc n/a (libc.so.6 + 0x1107cc)
                                                ELF object binary architecture: AMD x86-64
░░ Subject: Process 2145 (kwin_x11) dumped core
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ Documentation: man:core(5)
░░ 
░░ Process 2145 (kwin_x11) crashed and dumped core.
░░ 
░░ This usually indicates a programming error in the crashing program and
░░ should be reported to its vendor as a bug.
lis 19 12:01:37 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 493 and the job result is failed.
lis 19 12:01:37 desktop systemd[1132]: Failed to start KDE Window Manager.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 514 and the job result is failed.
lis 19 12:01:38 desktop lightdm[2118]: gkr-pam: unable to locate daemon control file
lis 19 12:01:39 desktop libddcutil[2286]: i2c_check_businfo_connector() failed for bus 5
lis 19 12:01:40 desktop libddcutil[2286]: busno=5, sleep-multiplier =  1,30. Testing for supported feature 0x10 returned Error_Info[EIO in ddc_write_read_with_retry, causes: EIO]
lis 19 12:03:49 desktop systemd[1]: lightdm-plymouth.service: Two services allocated for the same bus name org.freedesktop.DisplayManager, refusing operation.
lis 19 12:03:55 desktop lightdm[2948]: gkr-pam: unable to locate daemon control file
lis 19 12:03:57 desktop libddcutil[3129]: i2c_check_businfo_connector() failed for bus 5
lis 19 12:03:57 desktop libddcutil[3129]: busno=5, sleep-multiplier =  1,30. Testing for supported feature 0x10 returned Error_Info[EIO in ddc_write_read_with_retry, causes: EIO]
lis 19 12:03:58 desktop systemd[1132]: Failed to start picom.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 863 and the job result is failed.
lis 19 12:50:17 desktop systemd[1132]: Failed to start Emacs (Client) - Text Editor.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 1181 and the job result is failed.
lis 20 08:31:18 desktop kernel: hid-generic 0003:1852:DB96.000D: No inputs registered, leaving
lis 20 13:44:30 desktop kioslave5[140085]: libKExiv2: Cannot load metadata from file   (Error # Failed to read input data )
lis 20 21:31:31 desktop kernel: hid-generic 0003:1852:DB96.000E: No inputs registered, leaving
lis 21 09:26:42 desktop systemd[1]: Failed to start pkgfile database update.
░░ Subject: A start job for unit pkgfile-update.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit pkgfile-update.service has finished with a failure.
░░ 
░░ The job identifier is 35179 and the job result is failed.
lis 21 09:43:13 desktop systemd[1]: Failed to start Refresh existing keys of archlinux-keyring.
░░ Subject: A start job for unit archlinux-keyring-wkd-sync.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit archlinux-keyring-wkd-sync.service has finished with a failure.
░░ 
░░ The job identifier is 36149 and the job result is failed.
lis 21 11:28:08 desktop systemd[1132]: Failed to start qpdf.
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit UNIT has finished with a failure.
░░ 
░░ The job identifier is 1549 and the job result is failed.
lis 21 20:51:10 desktop kernel: hid-generic 0003:1852:DB96.000F: No inputs registered, leaving
lis 22 08:10:47 desktop kernel: hid-generic 0003:1852:DB96.0010: No inputs registered, leaving
lis 23 09:51:25 desktop systemd[1]: Failed to start pkgfile database update.
░░ Subject: A start job for unit pkgfile-update.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit pkgfile-update.service has finished with a failure.
░░ 
░░ The job identifier is 65122 and the job result is failed.
lis 23 10:08:11 desktop kernel: hid-generic 0003:1852:DB96.0011: No inputs registered, leaving
lis 27 10:50:48 desktop systemd[1]: Failed to start pkgfile database update.
░░ Subject: A start job for unit pkgfile-update.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit pkgfile-update.service has finished with a failure.
░░ 
░░ The job identifier is 80299 and the job result is failed.
lis 27 10:50:49 desktop kernel: Bluetooth: hci0: FW download error recovery failed (-19)
lis 27 10:50:49 desktop kernel: Bluetooth: hci0: sending frame failed (-19)
lis 27 10:50:49 desktop kernel: Bluetooth: hci0: Reading supported features failed (-19)
lis 27 10:50:49 desktop kernel: Bluetooth: hci0: sending frame failed (-19)
lis 27 10:50:49 desktop kernel: Bluetooth: hci0: Failed to read MSFT supported features (-19)
lis 27 10:50:49 desktop kernel: hid-generic 0003:1852:DB96.0013: No inputs registered, leaving
lis 27 10:50:50 desktop kernel: Bluetooth: hci0: Malformed MSFT vendor event: 0x02
lis 27 21:45:38 desktop kernel: hid-generic 0003:1852:DB96.0018: No inputs registered, leaving
lis 27 21:57:26 desktop kernel: e1000e 0000:00:1f.6 enp0s31f6: Detected Hardware Unit Hang:
                                  TDH                  <0>
                                  TDT                  <f>
                                  next_to_use          <f>
                                  next_to_clean        <0>
                                buffer_info[next_to_clean]:
                                  time_stamp           <10441a913>
                                  next_to_watch        <0>
                                  jiffies              <10441b540>
                                  next_to_watch.status <0>
                                MAC Status             <40000043>
                                PHY Status             <796d>
                                PHY 1000BASE-T Status  <0>
                                PHY Extended Status    <3000>
                                PCI Status             <10>
lis 27 21:57:26 desktop kernel: e1000e 0000:00:1f.6 enp0s31f6: Detected Hardware Unit Hang:
                                  TDH                  <0>
                                  TDT                  <f>
                                  next_to_use          <f>
                                  next_to_clean        <0>
                                buffer_info[next_to_clean]:
                                  time_stamp           <10441a913>
                                  next_to_watch        <0>
                                  jiffies              <10441b7c0>
                                  next_to_watch.status <0>
                                MAC Status             <40000043>
                                PHY Status             <796d>
                                PHY 1000BASE-T Status  <0>
                                PHY Extended Status    <3000>
                                PCI Status             <10>
lis 27 21:57:26 desktop kernel: e1000e 0000:00:1f.6 enp0s31f6: Detected Hardware Unit Hang:
                                  TDH                  <0>
                                  TDT                  <f>
                                  next_to_use          <f>
                                  next_to_clean        <0>
                                buffer_info[next_to_clean]:
                                  time_stamp           <10441a913>
                                  next_to_watch        <0>
                                  jiffies              <10441ba00>
                                  next_to_watch.status <0>
                                MAC Status             <40000043>
                                PHY Status             <796d>
                                PHY 1000BASE-T Status  <0>
                                PHY Extended Status    <3000>
                                PCI Status             <10>
lis 27 21:57:26 desktop kernel: e1000e 0000:00:1f.6 enp0s31f6: Reset adapter unexpectedly
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failed detecting connected display devices
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failed detecting connected display devices
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failure reading maximum pixel clock value for display device HDMI-0.
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failed detecting connected display devices
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failed detecting connected display devices
lis 27 21:57:26 desktop kernel: nvidia-modeset: ERROR: GPU:0: Failed detecting connected display devices
lis 27 21:57:24 desktop systemd-sleep[1044273]: Failed to put system to sleep. System resumed again: No space left on device
░░ Subject: System sleep state hibernate left
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ The system has now left the hibernate sleep state.
lis 27 21:57:26 desktop systemd[1]: Failed to start Hibernate.
░░ Subject: A start job for unit systemd-hibernate.service has failed
░░ Defined-By: systemd
░░ Support: https://forum.manjaro.org/c/support
░░ 
░░ A start job for unit systemd-hibernate.service has finished with a failure.
░░ 
░░ The job identifier is 97336 and the job result is failed.
dm:
 1: GDM v: 45.0.1 note: stopped 2: LightDM v: 1.32.0 3: SDDM note: stopped

it looks strange - do you have all 3 display managers enabled?
Did you disable all but lightdm, the one you want to use?
… or just uninstall sddm and gdm when you use lightdm

I just checked, and gdm and sddm where disabled/disabled as services, I don’t see how they could start. Both remain installed. I can’t remove sddm because plasma-meta depends on it.

Update

After having removed sddm, the second step was skipped, and I only had to launch twice to get to a usble state.

That was the only thing that stood out to me.
I have no further ideas.

I still haven’t figured this out. My currect (weak) hypothesis is that lightdm is launching KDE, while something has already launched a KDE service/bus/? already in the background

Create a new user and test if the issue happens when logging in there.

YES - system problem

NO - user configuration problem

Also, why do you have GDM installed on a Plasma system?

A freshly created user behaves correctly.
What is the best way to go about doing a diff between my user and the new user?

GDM is no longer installed as per the other suggestions in the thread.

KDE has a lot of different configuration files. See KDE - ArchWiki

First try cleaning the cache as described there. Next thing I’d look at is ~/.config/kwinrc or anything related to startup scripts or applications.