(In reply to Daniel Scharrer from comment #13)
> Disabling crumbs does not get rid of the GPU faults, at least not all of
> them. Even with all settings turned down there are occasional faults, but
> less than there are with higher settings.

 And all those GPU faults are caused now only by reverting that 
0e9cdedd2e3943bdb7f3543a3508b883b167e427 commit?