(In reply to Takashi Iwai from comment #15) > Could you check the kernel in OBS home:tiwai:bsc1209436 repo? > http://download.opensuse.org/repositories/home:/tiwai:/bsc1209436/pool/ > > It seems that a backport of i915 upstream fix caused the problem. The > kernel above reverted it on top of the latest SLE15-SP4 git branch. I confirm this kernel resolved the issue for me too.