Ooh, I know this one! Here’s what I did to get it working and set so it survives a reboot:
- In a terminal, run sudo arandr
- Set all of the monitors to 1080p
- Close arandr
- Go to Settings > Display
- Rearrange monitors in correct order if necessary
- Set the each monitor to the correct resolution and frequency, applying the settings after each update
- All monitors should now work, BUT they will not survive a reboot in Pop-OS 22, because the GDM3 login screen will NOT have this information, and will reset everything. So we must copy the pop-os monitors.xml file to the gdm3 config directory:
sudo cp ~/.config/monitors.xml /var/lib/gdm3/.config/
Note: You may need to do this as sudo -i
- Reboot, and all 3 monitors should be loaded in the correct positions, at the correct resolution at the login screen
What kind of headaches are you having? I’ve been running two completely different machines in a cluster with a pi as a Qdevice to keep quorum and it’s been incredibly stable for years.