https://bugs.freedesktop.org/show_bug.cgi?id=70409
--- Comment #11 from Michel Dänzer michel@daenzer.net --- (In reply to comment #9)
But I get black picture when I'm trying to run DRI_PRIME=1 glxgears...
PRIME currently requires a compositing manager to work.
I understand it's not related to this bug, [...]
Indeed, please take your remaining issues elsewhere.