Ah, good to know that the last working version is *.41. Then there is a known patch that can be the culprit, the commit fc8c70526bd30733ea8667adb8b8ffebea30a8ed I'm building yet another kernel in OBS home:tiwai:bsc1177384-radeon repo. A new test package will appear later at http://download.opensuse.org/repositories/home:/tiwai:/bsc1177384-radeon/standard/ Please give it a try later.