Comment # 4 on bug 88364 from Liss

(In reply to Michel Dänzer from comment #3)
> (In reply to Liss from comment #2)
> > If I restart notebook and try to run something again I'll get black window
> > (Xorg will continue to work)
> 
> Note that DRI_PRIME currently requires a compositing manager for the
> contents to be visible.

I'm using Mutter as WM, so there shouldn't be any problems with compositing.