https://bugs.freedesktop.org/show_bug.cgi?id=80531 --- Comment #2 from Alex Deucher --- Can you attach the dmesg with drm.debug=1 before you start X? All the important information is cut off. E.g., boot into single user mode (append 1 to the kernel command line in grub). -- You are receiving this mail because: You are the assignee for the bug.