Comment # 8 on bug 1170399 from David Hodgson

Upgraded to OS 15.2.  This is now worse - both login screen and the gnome
desktop are corrupt after resume from suspend.  Both are too corrupted to use
so I'll have to disable suspend & hibernate until I find a solution.

Any ideas / suggestions for what to change to localise the fault?

Any more info to help clarify the situation?