Arch Linux

Joojoololo

Member

Registered: 2021-04-16

Posts: 3

Cant use external monitor: configure crtc failed

Hi everyone,

I just finished setting up Arch on my new Laptop (XMG Core 15, Ryzen 4800h, RTX 2060) and everything seems to be running fine except for external screens.
Every time I try to use my external monitor (or any external screen, I already tried two other ones to rule out problems specific to one monitor), xrandr fails with "xrandr: Configure crtc 4 failed". It doesn't matter which crtc I use.

A complete interaction would look like this:

$ xrandr --output DP-1-0 --auto

screen 0: 3440x1440 907x380 mm  96.25dpi
crtc 4:    3440x1440  59.97 +0+0 "DP-1-0"
xrandr: Configure crtc 4 failed
crtc 0: disable
crtc 1: disable
crtc 2: disable
crtc 3: disable
crtc 4: disable
crtc 5: disable
crtc 6: disable
crtc 7: disable
screen 0: revert
crtc 0: revert
crtc 1: revert
crtc 2: revert
crtc 3: revert
crtc 4: revert
crtc 5: revert
crtc 6: revert
crtc 7: revert

Here is my driver info:

lspci -k | grep -A 3 -E "(VGA|3D)"

01:00.0 VGA compatible controller: NVIDIA Corporation TU106M [GeForce RTX 2060 Mobile] (rev a1)
	Subsystem: Tongfang Hongkong Limited Device 1100
	Kernel driver in use: nvidia
	Kernel modules: nouveau, nvidia_drm, nvidia
--
05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Renoir (rev c6)
	Subsystem: Tongfang Hongkong Limited Device 1100
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

I hope someone has an idea, I would love to use my external screen in linux!

EDIT:

These outputs might also be useful:

$ xrandr

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1920x1080    144.00*+
   1680x1050    144.00  
   1280x1024    144.00  
   1440x900     144.00  
   1280x800     144.00  
   1280x720     144.00  
   1024x768     144.00  
   800x600      144.00  
   640x480      144.00  
DP-1-0 connected (normal left inverted right x axis y axis)
   3440x1440     59.97 + 143.97   119.99    99.98  
   2560x1440    143.97   120.00    59.95  
   1920x1080    143.98   119.88    60.00    59.94    50.00  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94  
DP-1-1 disconnected (normal left inverted right x axis y axis)
DP-1-2 disconnected (normal left inverted right x axis y axis)
DP-1-3 disconnected (normal left inverted right x axis y axis)
HDMI-1-0 disconnected (normal left inverted right x axis y axis)

$ xrandr --listproviders

Providers: number : 2
Provider 0: id: 0x54 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 1 associated providers: 1 name:Unknown AMD Radeon GPU @ pci:0000:05:00.0
Provider 1: id: 0x1f6 cap: 0x2, Sink Output crtcs: 4 outputs: 5 associated providers: 1 name:NVIDIA-G0

Last edited by Joojoololo (2021-11-05 17:40:00)