HOW TO REPRODUCE:
Execute a low res vintage application in full resolution, for example dosbox or uqm.
The desktop is shown blank, or glitchy. At that point the only way to recover is to reboot.
Not reproducible on Deepin OS or Manjaro Deepin.
Compared with Manjaro Deepin, the Deepin File Manager cannot be stacked to a half of screen. Also exhibits minor glitches.
Graphic card: Radeon HD 5870
Graphic driver: Mesa 17.2.4