https://bugs.freedesktop.org/show_bug.cgi?id=82588 --- Comment #21 from Mike Lothian --- Yes 3.17-rc5 I downloaded the firmware files when they were first made available back when drm-next first added the support for the new firmware at the end of the 3.16 cycle Those files must have been damaged - installing the latest linux-firmware (or radeon-ucode) fixed this for me You are probably suffering from a different issue and should raise a separate bug -- You are receiving this mail because: You are the assignee for the bug.