Comment # 9 on bug 97119 from Johannes Hirte

Reopening for tracking flickering separately from 97029.

Flickering is happening mostly with amdgpu driver. Sometimes I've observed this
with modesetting too, but I can't trigger it reliable with this driver.

With amdgpu I can trigger this easily by starting a video with mpv and putting
it into fullscreen. Ending the video or the fullscreen mode causes the
flickering around newly created windows. I'll add a screencast how this look
like.

The flickering can be stopped by starting again a video in fullscreen. As long
as the video is on one virtual desktop, everything works like expected. It
doesn't matter if xv, opengl, vdpau or vaapi output is used.