Stopping and restarting X server makes the problem go away. Here are problem case and problem-free case Xorg logs - Xorg.0.log.good is without problem after restart, Xorg.0.log is first log when screen is corrupted.
Stopping and restarting X server makes the problem go away. Here are problem case and problem-free case Xorg logs - Xorg.0.log.good is without problem after restart, Xorg.0.log is first log when screen is corrupted.