Arch Linux

whaat

Member

Registered: 2023-04-19

Posts: 11

[SOLVED] Internal monitor not detected by X11 - Wayland finds it

I have the situation, that X11 cant find my internal screen. I have 2 external screen that are working normally. The internal screen keeps showing the boot messages. I absolutely dont understand why. When I start a Wayland session, all screens are present. Please help. I cant boot my laptop without external screens now because the login page only shows up on the external screen

---------- Original Post---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

I have a NVIDIA GeForce GTX 1660 Ti Mobile, KDE with SDDM, laptop with internal screen and 2 external connected by USB-C.

Everything worked fine. Yesterday I did a full upgrade. Today the graphical boot failed, Playmouth Boot Screen could not be terminated.

I played around and found that the graphics will boot when I comment this line in **/etc/X11/xorg.conf**:

    # nvidia-xconfig: X configuration file generated by nvidia-xconfig
    # nvidia-xconfig:  version 530.41.03
    Section "ServerLayout"
        Identifier     "Layout0"
        Screen      0  "Screen0"
    .....
    Section "Device"
        Identifier     "Device0"
    #    Driver         "nvidia"             #when commented graphical boot works with 1 Monitor
        VendorName     "NVIDIA Corporation"
        BusID          "PCI:1:0:0"
    EndSection
    .....
        SubSection     "Display"
            Depth       24
        EndSubSection
    EndSection
So I guess that it is related to the NVIDIA driver

    pacman -Q nvidia
    nvidia 530.41.03-6     #different from mod. normal?

When I check the mod loaded:

    modinfo $(modprobe --resolve-alias nvidia)
    filename:       /lib/modules/6.2.13-arch1-1/extramodules/nvidia.ko.xz
    firmware:       nvidia/530.41.03/gsp_tu10x.bin
    firmware:       nvidia/530.41.03/gsp_ga10x.bin   #different from above. normal?
    alias:          char-major-195-*
    version:        530.41.03
    supported:      external
    ...

Kernel log. I've noticed that some signature fails to load but no idea if this is the problem and if how to fix it:
dmesg | grep nvidia

    [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=2efc41cd-9bc2-430d-ad4c-9119cfc5c554 rw loglevel=3 quiet nvidia-drm.modeset=1
    [    0.028531] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=2efc41cd-9bc2-430d-ad4c-9119cfc5c554 rw loglevel=3 quiet nvidia-drm.modeset=1
    [    3.136458] nvidia-gpu 0000:01:00.3: enabling device (0000 -> 0002)
    [    3.695298] nvidia: loading out-of-tree module taints kernel.
    [    3.695323] nvidia: module license 'NVIDIA' taints kernel.
    [    3.709474] nvidia: module verification failed: signature and/or required key missing - tainting kernel
    [    3.902894] nvidia-nvlink: Nvlink Core is being initialized, major device number 510
    [    3.903724] nvidia 0000:01:00.0: enabling device (0006 -> 0007)
    [    3.903860] nvidia 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
    [    4.014272] nvidia_uvm: module uses symbols nvUvmInterfaceDisableAccessCntr from proprietary module nvidia, inheriting taint.
    [    4.108731] nvidia-uvm: Loaded the UVM driver, major device number 508.
    [    4.306861] nvidia-gpu 0000:01:00.3: i2c timeout error e0000000
    [    4.360489] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  530.41.03  Thu Mar 16 19:23:04 UTC 2023
    [    4.364399] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
    [    5.028945] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1

The problem is that I need the Nvidia driver for my external usbc screens. They are not working anymore for some unknown reason and I don't know how to proceed debugging.
I am relative new in Linux. Any ideas how to continue?

**UPDATE**
When I try to start the Boot screen from login shell i get this error:

    kstart plasma-desktop
    qt.qpa.xcb: could not connect to display
    qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
    This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

**I've tried:**
Reinstalling: qt, nvidia related packages, plasma,

Last edited by whaat (2023-04-30 18:25:44)

whaat

Member

Registered: 2023-04-19

Posts: 11

Re: [SOLVED] Internal monitor not detected by X11 - Wayland finds it

I modified /etc/X11/xorg.conf.d/20-nvidia.conf  (added the intel cpu)

Section "Device"
        Identifier "Device0"
        Driver "nvidia"
        VendorName "NVIDIA Corporation"
        BoardName "GeForce GTX 1660 Ti Mobile"
        BusID      "PCI:1:0:0"
EndSection

Section "Device"
    Identifier     "Intel iGPU"
    Driver         "intel"
    BusID          "PCI:0:2:0"
EndSection

Now my screen setup works completely with Wayland but when I log in  with X11 the external screens are working and the internal keeps showing the boot msgs. Does anyone ever seen this behavior?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,197

Re: [SOLVED] Internal monitor not detected by X11 - Wayland finds it

Remove the xorg.conf and the 20-nvidia.conf you generally don't need them and chances of configuring things incorrectly are high. Remove xf86-video-intel as well it's not maintained on newer iGPUs

Last edited by V1del (2023-04-30 18:06:41)

whaat

Member

Registered: 2023-04-19

Posts: 11

Re: [SOLVED] Internal monitor not detected by X11 - Wayland finds it

thanks. i removed xorg.conf. same behavior.  Will try to remove 20-nvidia and report the result

whaat

Member

Registered: 2023-04-19

Posts: 11

Re: [SOLVED] Internal monitor not detected by X11 - Wayland finds it

Thank you! It works!!!!!!