[SOLVED] External display not detected after Windows

gucio321 · 2025-04-07 22:53:11

Hi
I have arch in dualboot setup with windows 11. Today I booted up my windows and did a couple of things including adjusting my display setup in settings.
When I booted back to arch I noticed that my external display is not detected anymore.

- I'm using NVIDIA GPU with nvidia-open driver
- I've tested on both wayland and xorg

Here is output from xrandr

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1920x1080     60.16*+  60.01    59.97    59.96    59.93    40.11  
   1680x1050     59.95    59.88  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1280x800      59.99    59.97    59.81    59.91  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   640x400       59.88    59.98  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
HDMI-3 disconnected (normal left inverted right x axis y axis)

(this monitor still works on windows)

[~ (0) ]$ journalctl -b | grep -iE 'display|hdmi'
Apr 08 01:48:10 IUseArchBTW kernel: i915 0000:00:02.0: [drm] Found cometlake (device ID 9bc4) display version 9.00 stepping N/A
Apr 08 01:48:10 IUseArchBTW kernel: input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0/input22
Apr 08 01:48:10 IUseArchBTW kernel: input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0/input23
Apr 08 01:48:10 IUseArchBTW kernel: input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0/input24
Apr 08 01:48:10 IUseArchBTW kernel: input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0/input25
Apr 08 01:48:11 IUseArchBTW kernel: input: sof-hda-dsp HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input28
Apr 08 01:48:11 IUseArchBTW kernel: input: sof-hda-dsp HDMI/DP,pcm=4 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input29
Apr 08 01:48:11 IUseArchBTW kernel: input: sof-hda-dsp HDMI/DP,pcm=5 as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card1/input30
Apr 08 01:48:11 IUseArchBTW systemd[1]: Starting GNOME Display Manager...
Apr 08 01:48:11 IUseArchBTW systemd[1]: Started GNOME Display Manager.
Apr 08 01:48:12 IUseArchBTW gnome-shell[844]: Running GNOME Shell (using mutter 48.1) as a Wayland display server
Apr 08 01:48:13 IUseArchBTW gnome-shell[844]: Using public X11 display :1024, (using :1025 for managed services)
Apr 08 01:48:13 IUseArchBTW gnome-shell[844]: Using Wayland display name 'wayland-0'
Apr 08 01:48:18 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Creating default Display subsection in Screen section
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-1 has no monitor section
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-2 has no monitor section
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-3 has no monitor section
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Digital Display Input
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Digital interface is DisplayPort
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Display is continuous-frequency
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): EDID for output HDMI-1
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): EDID for output HDMI-2
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): EDID for output HDMI-3
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-1 disconnected
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-2 disconnected
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) modeset(0): Output HDMI-3 disconnected
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event18)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event19)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event20)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event21)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device sof-hda-dsp HDMI/DP,pcm=3 (/dev/input/event24)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device sof-hda-dsp HDMI/DP,pcm=4 (/dev/input/event25)
Apr 08 01:48:19 IUseArchBTW /usr/lib/gdm-x-session[1501]: (II) config/udev: Adding input device sof-hda-dsp HDMI/DP,pcm=5 (/dev/input/event26)

Last edited by gucio321 (2025-04-08 14:50:08)

seth · 2025-04-08 08:17:09

grep -iE 'display|hdmi'

Don't grep unless you know eactly what you're looking for.
Please post your complete system journal for the boot:

sudo journalctl -b | curl -F 'file=@-' 0x0.st

and also your Xorg log, https://wiki.archlinux.org/title/Xorg#General

From the symptoms you somehow killed the nvidia GPU (where the external output is likely wired)
PSA: 3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.

gucio321 · 2025-04-08 08:58:17

thank you for your answer.
I just managed to fix that 5 minutes ago. What I did was reinstalling nvidia-open driver (for some reason it helped, but why?)

Let me boot againt into windows and check if it breaks again

*Edit 1:*
I did a couple of reboots and it seems to work fine.
tbh I have no idea what caused that issue, but...

Edit 2:
why can't I edit the title of this post?

TL;DR
Reinstalling nvidia driver solved the problem for me.

Last edited by gucio321 (2025-04-08 09:07:38)

seth · 2025-04-08 14:36:51

why can't I edit the title of this post?

You'll have to shorten the subject (it's limited to whatever, likely 70 chars)

Arch Linux

#1 2025-04-07 22:53:11

[SOLVED] External display not detected after Windows

#2 2025-04-08 08:17:09

Re: [SOLVED] External display not detected after Windows

#3 2025-04-08 08:58:17

Re: [SOLVED] External display not detected after Windows

#4 2025-04-08 14:36:51

Re: [SOLVED] External display not detected after Windows

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