Hot-Plug detection fails?

Graphics / Linux Linux
1

Hi!
I have an NVIDIA GP107 [GeForce GTX 1050 Ti] on Kubuntu 22.04 and two monitors plugged into this card via VGA-HDMI and VGA-Displayport adapters. My primary screen is on the HDMI port. I have used this set-up successfully since November 2021. However, recently when playing a game, fullscreen on the primary monitor, the second one turn off after a few minutes and is not detected anymore (does not show up in xrandr).

This happened already a few weeks back and I got it back by changing to the nouveau drivers but only after two days of hassling and I don’t know what exactly made them work again - maybe an update?
However, after it was working again I was changing back to the NVIDIA drivers (545) to play again. Both monitors were working but the second one turned off again a few minutes into my game. Now after several days I am still unable to get it back to be detected.

Things I have tried:

  1. Reinstall all nvidida drivers
  2. Use nouveau drivers
  3. Go back to kernel 6.2.0-36-generic
  4. Upgrade to 6.2.0-39-generic
  5. Uncountable fixes and suggestions online…

My suspicion is that the driver sent the second monitor to “sleep” and the hot plug detection does not work. So the monitor is not woken up again. I also failed to wake it up manually (for example with “echo ‘on-digital’ | sudo tee /sys/class/drm/card0-DP-1/status”).

Do you have further suggestions?

For some reason I cannot upload the bugreport

Edit: Ubuntu 20.04 'no signal' after monitor sleep or monitor turned off might be relevant

2

Maybe the monitor is just broken? Does it come back if you unplug the power of the monitor for a minute and then plug it back in?

3

The monitor is fine. I switched both monitors around several times and it was always the one on the display port, who didn’t come on. Actually, I gave up and bought a new (wide) monitor to replace both of my monitors at once. For my interest I plugged it into the display port and it also did not work. On HDMI it works just fine.