Comment 8 for bug 1885474

Here's some output that perhaps is helpful

# Normal orientation with tearing:
$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 16384 x 16384
eDP connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1366x768 60.06*+ 40.04
   1280x720 60.06
   1024x768 60.06
   800x600 60.06
   640x480 60.06
HDMI-A-0 disconnected (normal left inverted right x axis y axis)

# Workaround configuration
$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 16384 x 16384
eDP connected primary 1366x768+0+0 inverted X and Y axis (normal left inverted right x axis y axis) 344mm x 193mm
   1366x768 60.06*+ 40.04
   1280x720 60.06
   1024x768 60.06
   800x600 60.06
   640x480 60.06
HDMI-A-0 disconnected (normal left inverted right x axis y axis)