It's starting to look like the issue might be in: xserver-xorg-video-intel 2:2.21.14-4ubuntu2+xmirMM7 and how it schedules it's own double/triple buffers to Mir...
It's starting to look like the issue might be in: xorg-video- intel 2:2.21. 14-4ubuntu2+ xmirMM7
xserver-
and how it schedules it's own double/triple buffers to Mir...