Arch Linux

Japieyo

Member

Registered: 2024-12-19

Posts: 5

[SOLVED] extra screens not working anymore

Hey guys!

Yesterday i installed arch on my laptop, but when i started it today my extra screens didn't work anymore. They did work when i installed it yesterday so i'm wondering where it went wrong. I hope you can help me!
p.s if there are any software info you need please do ask because i have no clue what info to add

Last edited by Japieyo (2024-12-20 17:03:26)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,194

Re: [SOLVED] extra screens not working anymore

What environment? Wayland or Xorg? Which GPU(s)? Which laptop model? Which screens with which adapter? Which anything at all? Please try to put some initial effort into questions.

That said

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

as well as a xorg log: https://wiki.archlinux.org/title/Xorg#General if you want to post things inline make sure to use [code][/code]  code tags otherwise make sure to use https://wiki.archlinux.org/title/List_o … n_services for uploading outputs.

Japieyo

Member

Registered: 2024-12-19

Posts: 5

Re: [SOLVED] extra screens not working anymore

Thanks for the reply,
Im using Wayland, I have an Nvidia 3060 gtx. Laptop is a medion erazer p10. One screen is plugged in with HDMI and has an adapter to dvi, the other is plugged in with usb-c and has an adapter to display port.
in my konsole i

http://0x0.st/XCL6.txt
Screen 0: minimum 16 x 16, current 1920 x 1080, maximum 32767 x 32767
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
   1920x1080    143.88*+
   1440x1080    143.90  
   1400x1050    143.89  
   1280x1024    143.92  
   1280x960     144.00  
   1152x864     143.92  
   1024x768     143.87  
   800x600      143.83  
   640x480      143.85  
   320x240      142.05  
   1680x1050    143.97  
   1440x900     143.86  
   1280x800     143.84  
   1152x720     143.77  
   960x600      143.72  
   928x580      143.82  
   800x500      143.68  
   768x480      143.69  
   720x480      143.85  
   640x400      143.37  
   320x200      141.40  
   1600x900     143.93  
   1368x768     143.77  
   1280x720     143.85  
   1024x576     143.91  
   864x486      143.63  
   720x400      143.88  
   640x350      143.57  

https://pastebin.com/7Ennxf9y is the Xorg.0.log

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,662

Re: [SOLVED] extra screens not working anymore

The X11 server in that log failed but we can already tell that it's a hybrid system, you're using nouveau, a static /root/xorg.conf.new and apparently also try to run X11 as root.
Post teh requested

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

and also

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done

You'll need https://aur.archlinux.org/packages/edid-decode-git but it is beyond likely to be a reverse prime scenario, https://wiki.hyprland.org/Configuring/Multi-GPU/

---

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Japieyo

Member

Registered: 2024-12-19

Posts: 5

Re: [SOLVED] extra screens not working anymore

http://0x0.st/XCf0.txt

/sys/class/drm/card1
bash: edid-decode: command not found
=================
/sys/class/drm/card1-DP-1
bash: edid-decode: command not found
=================
/sys/class/drm/card1-DP-2
bash: edid-decode: command not found
=================
/sys/class/drm/card1-eDP-1
bash: edid-decode: command not found
=================
/sys/class/drm/card1-HDMI-A-1
bash: edid-decode: command not found
=================
/sys/class/drm/card1-HDMI-A-2
bash: edid-decode: command not found
=================
/sys/class/drm/card1-HDMI-A-3
bash: edid-decode: command not found
=================

i've been trying to get edid decode to work for the past few hours but it just keeps giving me errors so i downloaded v4l utils, is that also good?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,194

Re: [SOLVED] extra screens not working anymore

? v4l and edid decode have no relation to each other. edid-decode is an AUR package so some additional steps to install it: https://wiki.archlinux.org/title/Arch_User_Repository -- you're advised to read this page, you'll eventually run into software not in the repos

But

Dec 19 17:47:00 soup systemd-modules-load[316]: Failed to find module 'nvidia-uvm'

your nvidia driver isn't loading. Are you conducting partial updates? Don't do that: https://wiki.archlinux.org/title/System … nsupported -- always update your entire system.

What output do you get from

pacman -Qs nvidia

Last edited by V1del (2024-12-19 23:04:12)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,662

Re: [SOLVED] extra screens not working anymore

downloaded v4l utils, is that also good?

No, but for the purpose of this thread your post actually suggests that there's only one VGA device (with all outputs)
The nvidia device seems a mere 3D accelerator

I also noticed that
1. you actually posted a 0x0.st link (inside the xrandr code tags, so I give myself a pass)
2. I hallucinated Hyprland, you're actually running plasma/wayland (no pass on that)

qdbus6 org.kde.KWin /KWin supportInformation
kscreen-doctor

Edit: the edid output or a proper X11 log might still help to shed a light on why the other outputs aren't detected, in case they're not.

Edit: missed

your nvidia driver isn't loading

There may actually be outputs on that chip once it's actually addressed…

Last edited by seth (2024-12-19 23:45:45)

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

Japieyo

Member

Registered: 2024-12-19

Posts: 5

Re: [SOLVED] extra screens not working anymore

  pacman -Qs nvidia 

gives:

 local/egl-gbm 1.1.2-1
    The GBM EGL external platform library
local/egl-wayland 4:1.1.17-1
    EGLStream-based Wayland external platform
local/egl-x11 1.0.0-1
    NVIDIA XLib and XCB EGL Platform Library
local/lib32-nvidia-utils 565.77-1
    NVIDIA drivers utilities (32-bit)
local/libvdpau 1.5-3
    Nvidia VDPAU library
local/nvidia-utils 565.77-2
    NVIDIA drivers utilities
local/xf86-video-nouveau 1.0.18-1 (xorg-drivers)
    Open Source 3D acceleration driver for nVidia cards

and https://pastebin.com/Wb82S357 is the output of

 qdbus6 org.kde.KWin /KWin supportInformation
kscreen-doctor 

edit:
also the edid-decode aur is giving a 404 error now so i can't access it anymore

Last edited by Japieyo (2024-12-20 15:30:17)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,194

Re: [SOLVED] extra screens not working anymore

The nvidia kernel module is nowhere, how did that happen? Remove xf86-video-nouveau and install the nvidia package, reboot.

The pastebin lacks the output of kscreen-doctor but anyway it's very likely the fact that nvdiia doesn't have a driver.

Japieyo

Member

Registered: 2024-12-19

Posts: 5

Re: [SOLVED] extra screens not working anymore

yes they work! that was absolutely the issue. thanks!

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,194

Re: [SOLVED] extra screens not working anymore

Great, please mark as [SOLVED] by editing the title in your first post.