https://bugs.freedesktop.org/show_bug.cgi?id=64867 --- Comment #7 from Harald Judt --- Created attachment 80920 --> https://bugs.freedesktop.org/attachment.cgi?id=80920&action=edit netconsole.log I've been able to get a more complete output using netconsole. I'm not sure if it helps, but here it is. Here are the steps to reproduce the crash: 1) Go to youtube.com, start playing a video. => This prints these lines: radeon 0000:01:00.0: GPU fault detected: 146 0x0b95e004 radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x000010B9 radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x050E0004 2) Close the web browser, activate xscreensaver with an opengl screensaver like photopile. => GPU lockup CP stall -- You are receiving this mail because: You are the assignee for the bug.