This morning after I installed updates and restarted my computer, I suddenly had an issue where after logging in, one of my 2 displays is locked at 640x480, and sometimes is not displaying at all. Occasionally the second monitor will flash on, saying no signal, and all input/display will hang up for a few seconds. If I try to change either displays’ settings, both screens go black until I restart the PC. I have booted both into windows and a manjaro kde installer to test if this is a hardware issue, and both seem to behave fine. Any help is much appreciated, I don’t really know where to begin with this sort of issue
One monitor is 1920x1080, other is 2560x1440 both 144hz. I have an AMD graphics card running video-linux driver. I am using KDE plasma.
here is the sequence on statup:
- grub displays as normal
- Both monitors display the login screen in what seems to be the native resolution
- the splash screen begins on one screen then freezes and the other screen goes black
- Eventually the splash screen disappears and one of the monitors shows up as normal
- sometimes the second monitor comes to life as 640x480
- changing settings crashes the display
I’ve been running fine on this install for about a year now with no issues like this before. I don’t really know what logs to provide, but here is the output of xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
1920x1080 143.98*+ 120.00 119.88 119.98 99.93 74.99 60.00 50.00 59.94
1680x1050 143.98
1280x1024 75.02 60.02
1440x900 143.98
1280x800 143.98
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
DisplayPort-1 connected (normal left inverted right x axis y axis)
640x480 59.94
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)