(In reply to Jozef Kovac from comment #44) > I installed Arch for testing multiple old LTS kernels ( 3.14,3.18...) but > DRI_PRIME=1 works stable even with 4.1.13, after day of testing nothing > happen(gameplay, glmatrix... only slightly worse performance than > openSUSE_Leap but still much better than IGP Could you try kernel-vanilla from 4.1.13? It might be that some our backports broke something.