Hey, so i made an update yesterday and now my 2nd Monitor is not properly detected anymore. Also it is not detected as sound device at all either. I can force the resolution with xrandr but other than that it would just look like this: (which doesn’t bring the Audio back.)
This i was was updated minus some python packages and kernel. Kernel i already downgraded but it didn’t help anything.
Here the list of what i downgraded:
I assume Monitor-1 there, on DP-1 is where the issue is at. What desktop environment are you using, and perhaps more specifically, are you using Wayland or X11?
What’s the output of xrandr?
xrandr
And a simple test, have you tried switching the DisplayPort cables between the monitors, to confirm it’s not a cable issue?
Yes DP-1 is the one, its a 4k TV i’m using it every day and the cable is also good since it still basically new, bought it, plugged it in and use it there ever since for months now.
Since its a usb-c/thunderbolt-to-hdmi cable and the other just hdmi i cant switch it around but I’m 100% sure its not the cable. Like I said I can add a mode in xandr and use the TV with the resolution I normally use it (2560x1440), as you can see below:
❯ xrandr
Screen 0: minimum 320 x 200, current 4000 x 2560, maximum 16384 x 16384
DP-1 connected 2560x1440+1440+0 (normal left inverted right x axis y axis) 0mm x 0mm
640x480 59.94 +
1024x768 60.00
800x600 60.32 56.25
848x480 60.00
2560x1440 59.95*
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 connected primary 1440x2560+0+0 left (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+ 74.97
2048x1152 60.00
1920x1200 59.88
1920x1080 74.97 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x800 59.81
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
I’m using Cinnamon (X11)
EDIT:
Ok its solved, wanted to screenshot that its working on debian so i booted it up and it looked the same there too. Then I went to windows and just when i was done screenshoting the settings screen i thought why not just try this:i unplugged the cable from the TV-side itself and used another port, then after it was working again i change to the old port again and also still working.
No idea why it did what it did though.
Edit2:
Now I also redid all the updates and its still working. No idea what temporary curse that was lol
Thanks for trying to help!
