BTW, I'm building yet another test kernel including more nouveau backports, which makes it almost equivalent with 4.14.x code. The test kernel is being built in OBS home:tiwai:leap-15.0-nouveau repo. It'll appear later at http://download.opensuse.org/repositories/home:/tiwai:/leap-15.0-nouveau/standard/ For anyone has a Nvidia graphics machine, it'd be greatly appreciated if you can test with the new kernel and report back whether it works (better) or not.