KDE Plasma stuck at splash screen with dual monitor setup


After recent update I got yesterday 09/30/2022 I have this issue when running my laptop standalone, everything launches fine, but after connecting it to the dock with two other monitors, I’m getting stuck on the splash screen of Plasma. I have just the logo with the spinning gear icon. The gear is very laggy followed by my laptop fan turning at almost max speed.

If I switch to tty, I can run startx and I can get to the desktop, but that’s rather annoying and also if I try to restart the system, it puts me into an empty prompt on a screen, then it just hangs there.

If I boot the laptop with the laptop screen first and then connect the dock, everything also works as expected, the only thing this happens is when I’m trying to boot directly with the dock in.

I will provide any additional info if needed, since I can get in the DE, but I’d like to fix this somehow, so I don’t have to run startx every time.

provide system info:
inxi -Faz
use formatting, click this icon in editor: </> and copy the output there

  Kernel: 5.19.7-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.19-x86_64
    root=UUID=d40f3104-bcff-40b6-bb35-abc247231d4f rw quiet apparmor=1
    security=apparmor udev.log_priority=3
  Desktop: KDE Plasma v: 5.25.5 tk: Qt v: 5.15.5 wm: kwin_x11 vt: 1
    dm: SDDM Distro: Manjaro Linux base: Arch Linux
  Type: Laptop System: HP product: HP ProBook 455 G7 v: N/A
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: HP model: 8730 v: KBC Version 13.26.00 serial: <superuser required>
    UEFI: HP v: S79 Ver. 01.08.20 date: 03/15/2022
  ID-1: BAT0 charge: 35.9 Wh (99.4%) condition: 36.1/45.0 Wh (80.2%)
    volts: 12.0 min: 11.4 model: Hewlett-Packard Primary type: Li-ion
    serial: <filter> status: not charging cycles: 9
  Info: model: AMD Ryzen 5 4500U with Radeon Graphics bits: 64 type: MCP
    arch: Zen 2 gen: 3 level: v3 built: 2020-22 process: TSMC n7 (7nm)
    family: 0x17 (23) model-id: 0x60 (96) stepping: 1 microcode: 0x8600106
  Topology: cpus: 1x cores: 6 smt: <unsupported> cache: L1: 384 KiB
    desc: d-6x32 KiB; i-6x32 KiB L2: 3 MiB desc: 6x512 KiB L3: 8 MiB
    desc: 2x4 MiB
  Speed (MHz): avg: 1404 high: 1435 min/max: 1400/2375 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 1403 2: 1397
    3: 1435 4: 1397 5: 1397 6: 1400 bogomips: 28454
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
  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 mitigation: untrained return thunk; SMT disabled
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
  Type: spectre_v2 mitigation: Retpolines, IBPB: conditional, STIBP:
    disabled, RSB filling, PBRSB-eIBRS: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
  Device-1: AMD Renoir vendor: Hewlett-Packard driver: amdgpu v: kernel
    arch: GCN-5.1 code: Vega-2 process: TSMC n7 (7nm) built: 2018-21 pcie:
    gen: 3 speed: 8 GT/s lanes: 16 link-max: gen: 4 speed: 16 GT/s ports:
    active: DP-3,DP-4 off: eDP-1 empty: DP-1, DP-2, DP-5, HDMI-A-1
    bus-ID: 05:00.0 chip-ID: 1002:1636 class-ID: 0300
  Device-2: Lite-On HP HD Camera type: USB driver: uvcvideo bus-ID: 3-4:3
    chip-ID: 04ca:7095 class-ID: 0e02
  Display: x11 server: X.Org v: 21.1.4 with: Xwayland v: 22.1.3
    compositor: kwin_x11 driver: X: loaded: amdgpu unloaded: modesetting
    alternate: fbdev,vesa gpu: amdgpu display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x1167 s-dpi: 96 s-size: 1013x307mm (39.88x12.09")
    s-diag: 1058mm (41.67")
  Monitor-1: DP-3 mapped: DisplayPort-2 pos: bottom-l model: HP 23xi
    serial: <filter> built: 2014 res: 1920x1080 hz: 60 dpi: 96 gamma: 1.2
    size: 509x286mm (20.04x11.26") diag: 584mm (23") ratio: 16:9 modes:
    max: 1920x1080 min: 720x400
  Monitor-2: DP-4 mapped: DisplayPort-3 pos: primary,top-right model: HP
    P24h G4 serial: <filter> built: 2019 res: 1920x1080 dpi: 93 gamma: 1.2
    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") ratio: 16:9 modes:
    max: 1920x1080 min: 720x400
  Monitor-3: eDP-1 mapped: eDP note: disabled model: LG Display 0x062e
    built: 2019 res: 1920x1080 dpi: 142 gamma: 1.2
    size: 344x194mm (13.54x7.64") diag: 395mm (15.5") ratio: 16:9 modes:
    max: 1920x1080 min: 640x480
  OpenGL: renderer: AMD RENOIR (LLVM 14.0.6 DRM 3.47 5.19.7-1-MANJARO) v: 4.6
    Mesa 22.1.7 direct render: Yes
  Device-1: AMD Renoir Radeon High Definition Audio vendor: Hewlett-Packard
    driver: snd_hda_intel v: kernel bus-ID: 1-1.5:20 chip-ID: 0bda:4014 pcie:
    class-ID: 0102 gen: 3 serial: <filter> speed: 8 GT/s lanes: 16 link-max:
    gen: 4 speed: 16 GT/s bus-ID: 05:00.1 chip-ID: 1002:1637 class-ID: 0403
  Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: Hewlett-Packard
    driver: N/A alternate: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x,
    snd_pci_acp6x, snd_acp_pci, snd_sof_amd_renoir pcie: gen: 3 speed: 8 GT/s
    lanes: 16 link-max: gen: 4 speed: 16 GT/s bus-ID: 05:00.5
    chip-ID: 1022:15e2 class-ID: 0480
  Device-3: AMD Family 17h/19h HD Audio vendor: Hewlett-Packard
    driver: snd_hda_intel v: kernel pcie: gen: 3 speed: 8 GT/s lanes: 16
    link-max: gen: 4 speed: 16 GT/s bus-ID: 05:00.6 chip-ID: 1022:15e3
    class-ID: 0403
  Device-4: Realtek USB Audio type: USB driver: snd-usb-audio
  Device-5: Focusrite-Novation Scarlett Solo USB type: USB
    driver: snd-usb-audio bus-ID: 1-1.7:23 chip-ID: 1235:8205 class-ID: 0102
  Device-6: Samson C01U Pro condenser microphone type: USB
    driver: hid-generic,snd-usb-audio,usbhid bus-ID: 3-3:2 chip-ID: 17a0:0303
    class-ID: 0300
  Sound Server-1: ALSA v: k5.19.7-1-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.21 running: no
  Sound Server-3: PulseAudio v: 16.1 running: yes
  Sound Server-4: PipeWire v: 0.3.57 running: yes
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Hewlett-Packard driver: r8169 v: kernel pcie: gen: 1
    speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 01:00.0 chip-ID: 10ec:8168
    class-ID: 0200
  IF: enp1s0 state: down mac: <filter>
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel pcie: gen: 2
    speed: 5 GT/s lanes: 1 bus-ID: 02:00.0 chip-ID: 8086:2723 class-ID: 0280
  IF: wlp2s0 state: up mac: <filter>
  Device-3: Realtek RTL8153 Gigabit Ethernet Adapter type: USB
    driver: r8152 bus-ID: 2-1.2:7 chip-ID: 0bda:8153 class-ID: 0000
    serial: <filter>
  IF: enp5s0f3u1u2 state: down mac: <filter>
  Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8
    bus-ID: 1-3:2 chip-ID: 8087:0029 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
  Local Storage: total: 476.94 GiB used: 331.96 GiB (69.6%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Toshiba
    model: KBG40ZNV512G KIOXIA size: 476.94 GiB block-size: physical: 512 B
    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: HP00AE00 temp: 56.9 C scheme: GPT
  ID-1: / raw-size: 379.89 GiB size: 372.86 GiB (98.15%) used: 243.81 GiB
    (65.4%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%) used: 44.7 MiB
    (14.9%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
  Alert: No swap data was found.
  System Temperatures: cpu: 61.6 C mobo: N/A gpu: amdgpu temp: 46.0 C
  Fan Speeds (RPM): N/A
  Processes: 325 Uptime: 2h 38m wakeups: 2 Memory: 15.03 GiB used: 8.55 GiB
  (56.9%) Init: systemd v: 251 default: graphical tool: systemctl
  Compilers: gcc: 12.2.0 alt: 11 clang: 14.0.6 Packages: 2125 pm: dpkg
  pkgs: 0 pm: pacman pkgs: 2110 libs: 476 tools: pamac,yay pm: flatpak
  pkgs: 6 pm: snap pkgs: 9 Shell: Zsh v: 5.9 default: Bash v: 5.1.16
  running-in: yakuake inxi: 3.3.21

did you try with different kernel, for example the 5.15 lts?

Can confirm this issue doesn’t occur with kernel 5.18.19-3-MANJARO I had previously. The system starts as expected while booting with this kernel

so could be a kernel thing … however the 5.18 is going to be no longer supported - end of life… you could create a new test user, reboot select the 5.19 and login with the test user, to rule out that some plasma config is messing the things up with the 5.19

Now after a reboot, I can’t even run the system with the old kernel, nor I can create another account. The system always starts with my primary one and when I want to log out, or change user, it doesn’t show me anything at all. I might try to clear the plasma config to be sure it’s not just that.

but you can boot with the 5.19 kernel, without the dock?

I’ve managed to boot without the dock, change the default user to log in to the testing account and it booted without an issue, so I suppose this might be caused by some messy config

so if you booted with the dock normally with the test user, try resetting your plasma - go to system settings/global theme, click defaults, check desktop layout, click apply, then clear your cache:
rm -rf ~/.cache/*
reboot - you do this in your main user - and test if it helped …
if not, rename the .config folder to .config.bak, reboot and see if that helped - of course you do this on the main user


This ^ and also mv ~/.config/plasma-org.kde.plasma.desktop-appletsrc ~/.config/plasma-org.kde.plasma.desktop-appletsrc-old

Made the desktop functioning again. I need to readjust the panels, but that’s not that much work.

This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.