Comment 4 for bug 1964675

Also, when the problem is happening please run:

  apport-collect 1964675
  sudo apt install mesa-utils
  glxinfo > glxinfo.txt
  xrandr --verbose > xrandr.txt
  lspci -k > lspci.txt
  journalctl -b0 > journal.txt

and attach the resulting text files here.

When reporting new bugs in the future please use the 'ubuntu-bug' command.