(In reply to intermediadc@hotmail.com from comment #58)
> (In reply to erhard_f from comment #57)
> > Had some time to test kernels 4.14.4 and 4.15-rc2. Sadly nothing new
> > concerning this issue.
> 
> yes nothing change , mee to continue dont have gpu accelerations on r600
> .... but on ppc world look like the emb are not effected .

I wonder if you still can reproduce this bug on current 4.17.x or 4.18.x
kernels? I've not had issues ever since. IMHO this bug could be closed.