I recently got a new ViewSonic Monitor and was configuring it to 144 Hz using XRandr. It seems I messed something up and now, I can't get my monitor to work using DisplayPort. Only HDMI works.
This issue started after I typed
xrandr --output DP-0 --mode 2560x1440 --rate 144.00 into terminal and moved the mouse. The screen said "no signal". I turned the monitor and computer on and off and nothing happened. Switching to HDMI fixes the problem but then I can't use the 144 Hz. I think this is a Linux related issue and not a monitor related issue since the problem started after I edited the xrandr code. The only thing I can think of is changing the xrandr setting again but I can't do that since xrandr says that DP-0 is disconnected.
I have tried:
- Changing XRandr setting
- switching out DP cables
- Clearing monitor settings file
Edit: I just noticed that when I turn my computer on with DP-0 plugged in, my monitor briefly reacts before going into standby mode. Turning it on still says "No signal".