No output to external monitors

Support Graphics & Display
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1

External monitors are not working with X11 or Wayland. Have tried with optimus-manager and without. Monitors work when booted into Windows 10 partition so I know its not a hardware issue. The external monitor works during boot and in the SDDM then looses connection after login. I have tried things in similar issues, but nothing seems to work for me.

System configuration:

inxi --full --admin --verbosity=7 --filter --no-host                                                             INT ✘ 
System:
  Kernel: 5.15.76-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64
    root=UUID=89bc5f7f-7a9c-4d98-8330-bba6cda21814 rw quiet
    udev.log_priority=3
  Desktop: KDE Plasma v: 5.26.2 tk: Qt v: 5.15.6 wm: kwin_x11 vt: 1 dm: SDDM
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Laptop System: Dell product: Precision 3571 v: N/A
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: Dell model: 03KRMT v: A00 serial: <superuser required> UEFI: Dell
    v: 1.8.0 date: 09/13/2022
Battery:
  ID-1: BAT0 charge: 91.6 Wh (94.4%) condition: 97.0/97.0 Wh (100.0%)
    volts: 13.3 min: 11.4 model: SMP DELL 05RGWK9 type: Li-poly serial: <filter>
    status: charging
Memory:
  RAM: total: 31.04 GiB used: 3.51 GiB (11.3%)
  RAM Report: permissions: Unable to run dmidecode. Root privileges
    required.
CPU:
  Info: model: 12th Gen Intel Core i7-12800H 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: 0x9A (154) stepping: 3
    microcode: 0x423
  Topology: cpus: 1x cores: 14 mt: 6 tpc: 2 st: 8 threads: 20 smt: enabled
    cache: L1: 1.2 MiB desc: d-8x32 KiB, 6x48 KiB; i-6x32 KiB, 8x64 KiB
    L2: 11.5 MiB desc: 6x1.2 MiB, 2x2 MiB L3: 24 MiB desc: 1x24 MiB
  Speed (MHz): avg: 551 high: 1100 min/max: 400/4800:3700 scaling:
    driver: intel_pstate governor: powersave cores: 1: 461 2: 464 3: 513 4: 505
    5: 426 6: 871 7: 517 8: 431 9: 551 10: 1100 11: 735 12: 546 13: 552
    14: 415 15: 400 16: 462 17: 576 18: 544 19: 478 20: 475 bogomips: 112160
  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 ht hwp hwp_act_window hwp_epp
    hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ida intel_pt invpcid
    invpcid_single lahf_lm lm mca mce md_clear mmx monitor movbe movdir64b
    movdiri msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pcid 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: 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_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl and seccomp
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 status: Vulnerable: eIBRS with unprivileged eBPF
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel Alder Lake-P Integrated Graphics vendor: Dell driver: i915
    v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+ ports:
    active: eDP-1 off: HDMI-A-1 empty: DP-1,DP-2 bus-ID: 00:02.0
    chip-ID: 8086:46a6 class-ID: 0300
  Device-2: NVIDIA GA107GLM [RTX A1000 Laptop GPU] vendor: Dell
    driver: nvidia v: 520.56.06 alternate: nouveau,nvidia_drm non-free: 520.xx+
    status: current (as of 2022-10) arch: Ampere code: GAxxx
    process: TSMC n7 (7nm) built: 2020-22 pcie: gen: 4 speed: 16 GT/s lanes: 8
    link-max: lanes: 16 bus-ID: 01:00.0 chip-ID: 10de:25b9 class-ID: 0302
  Device-3: Microdia Integrated_Webcam_FHD type: USB driver: uvcvideo
    bus-ID: 3-6:5 chip-ID: 0c45:6740 class-ID: 0e02
  Display: x11 server: X.Org v: 21.1.4 with: Xwayland v: 22.1.4
    compositor: kwin_x11 driver: X: loaded: modesetting dri: iris gpu: i915
    display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 506x285mm (19.92x11.22")
    s-diag: 581mm (22.86")
  Monitor-1: HDMI-A-1 mapped: HDMI-1 note: disabled
    model: ViewSonic TD2240 Series serial: <filter> built: 2013 res: N/A
    dpi: 102 gamma: 1.2 size: 477x268mm (18.78x10.55") diag: 547mm (21.5")
    ratio: 16:9 modes: max: 1920x1080 min: 720x240
  Monitor-2: eDP-1 pos: primary model: ChiMei InnoLux 0x1529 built: 2020
    res: 1920x1080 hz: 60 dpi: 142 gamma: 1.2 size: 344x193mm (13.54x7.6")
    diag: 394mm (15.5") ratio: 16:9 modes: 1920x1080
  API: OpenGL v: 4.6 Mesa 22.2.1 renderer: Mesa Intel Graphics (ADL GT2)
    direct render: Yes
Audio:
  Device-1: Intel Alder Lake PCH-P High Definition Audio vendor: Dell
    driver: snd_hda_intel v: kernel alternate: snd_sof_pci_intel_tgl
    bus-ID: 00:1f.3 chip-ID: 8086:51c8 class-ID: 0403
  Sound API: ALSA v: k5.15.76-1-MANJARO running: yes
  Sound Server-1: JACK v: 1.9.21 running: no
  Sound Server-2: PulseAudio v: 16.1 running: yes
  Sound Server-3: PipeWire v: 0.3.59 running: yes
Network:
  Device-1: Intel Alder Lake-P PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:51f0 class-ID: 0280
  IF: wlp0s20f3 state: up mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  Device-2: Intel Ethernet I219-LM vendor: Dell driver: e1000e v: kernel
    port: N/A bus-ID: 00:1f.6 chip-ID: 8086:1a1e class-ID: 0200
  IF: enp0s31f6 state: up speed: 1000 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 type: USB driver: btusb v: 0.8 bus-ID: 3-10:8
    chip-ID: 8087:0033 class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 3 state: up address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 476.94 GiB used: 278.53 GiB (58.4%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital
    model: PC SN740 NVMe WD 512GB size: 476.94 GiB block-size: physical: 512 B
    logical: 512 B speed: 63.2 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: 73103012 temp: 40.9 C scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 180 GiB size: 176.12 GiB (97.84%) used: 43.91 GiB (24.9%)
    fs: ext4 dev: /dev/nvme0n1p5 maj-min: 259:5 label: N/A
    uuid: 89bc5f7f-7a9c-4d98-8330-bba6cda21814
  ID-2: /boot/efi raw-size: 500 MiB size: 499 MiB (99.80%)
    used: 127.3 MiB (25.5%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
    label: N/A uuid: C06A-A02D
  ID-3: /mnt/win raw-size: 289.39 GiB size: 289.39 GiB (100.00%)
    used: 234.5 GiB (81.0%) fs: ntfs dev: /dev/nvme0n1p3 maj-min: 259:3
    label: Local Disk uuid: A452AE3652AE0CDC
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 6.52 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/nvme0n1p6 maj-min: 259:6 label: N/A
    uuid: 6d7e5bc2-1103-4bfe-994e-94b1b31bd755
Unmounted:
  ID-1: /dev/nvme0n1p2 maj-min: 259:2 size: 16 MiB fs: <superuser required>
    label: N/A uuid: N/A
  ID-2: /dev/nvme0n1p4 maj-min: 259:4 size: 530 MiB fs: ntfs label: N/A
    uuid: 1E4A9F3B4A9F0EA1
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 1 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-2: 2-0:1 info: Super-speed hub ports: 2 rev: 3.1 speed: 20 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
  Hub-3: 3-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-4: 3-3:2 info: Microchip (formerly SMSC) USB2137 ports: 7 rev: 2.1
    speed: 480 Mb/s chip-ID: 0424:2137 class-ID: 0900
  Device-1: 3-3.1:4 info: Dell KB212-B Quiet Key Keyboard type: Keyboard
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 1.5 Mb/s
    power: 100mA chip-ID: 413c:2107 class-ID: 0301
  Device-2: 3-3.7:6 info: ILI ILITEK Multi-Touch type: HID
    driver: hid-multitouch,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s
    power: 200mA chip-ID: 222a:003d class-ID: 0300
  Device-3: 3-4:3 info: MosArt Wireless Mouse type: Mouse
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s
    power: 100mA chip-ID: 062a:4102 class-ID: 0301
  Device-4: 3-6:5 info: Microdia Integrated_Webcam_FHD type: Video
    driver: uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s power: 500mA
    chip-ID: 0c45:6740 class-ID: 0e02
  Device-5: 3-8:7 info: Broadcom 58200 type: N/A driver: N/A interfaces: 1
    rev: 2.0 speed: 480 Mb/s power: 100mA chip-ID: 0a5c:5843 class-ID: fe00
    serial: <filter>
  Device-6: 3-10:8 info: Intel type: Bluetooth driver: btusb interfaces: 2
    rev: 2.0 speed: 12 Mb/s power: 100mA chip-ID: 8087:0033 class-ID: e001
  Hub-5: 4-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 50.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Info:
  Processes: 363 Uptime: 22m wakeups: 22 Init: systemd v: 251
  default: graphical tool: systemctl Compilers: gcc: 12.2.0 clang: 14.0.6
  Packages: 1342 pm: dpkg pkgs: 0 pm: pacman pkgs: 1337 libs: 368 tools: pamac
  pm: flatpak pkgs: 5 Shell: Zsh v: 5.9 default: Bash v: 5.1.16
  running-in: konsole inxi: 3.3.23

Any ideas for a solution?

2

check for displaylink and please give more details. how are your displays connected ? no one knows and do not expect that anyone is willing to dig into dark because of missing informations.
https://wiki.archlinux.org/title/DisplayLink

3

Thanks for the reply. The type of displays and how they are connected was listed in my system configuration. They are both wired connections so I’m not sure looking into DisplayLink would help here. One is connected via HDMI and the other through thunderbolt/usb-c.

4

Here is my solution on KDE:

Switch to “Unify outputs” mode, i.e. duplicate mode, both montors work fine.
Then switch to external monitor only mode, it’ll work even after rebooting.

1 Like
5

Maybe the problem is plasma related:

rename the folder kscreen to kscreen.bak in ~/.local/share and reboot

6

I agree. I’m having similar problem an this method tends to work.

The downside is when the monitors have different resolution, the smaller one will be picked when unifying outputs and you have to set the resolution again.

7

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