Bug ID: 390187
Summary: Glitching/session freeze when changing the tearing
Platform: Archlinux Packages
Target Milestone: ---
Observed on Intel Ivy Bridge.
Save work first!
1. Change the tearing prevention from "Full screen repaints" to "Automatic" or
vice-versa, and Apply.
2. Move some windows around: observe full-screen black flickering, other
windows being partially painted over the active window while typing, and
3a. Logout, and confirm with Ok at the logout screen: session freezes with the
logout screen stuck on the screen.
3b. Keep triggering the snap animation by snapping a window against a screen
edge but not letting go: observe snap animation displays a garbage texture.
Continue for about 10 seconds: graphics freezes, cpu goes to 100%, and disk
4. Try to VT switch: nothing happens.
5. Trigger SysRq+I: get a VT, but it is frozen, and a reboot is necessary, even
though kernel is responsive.
(If you are lucky, you may get the SDDM greeter, and you can login again
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