https://bugs.freedesktop.org/show_bug.cgi?id=68213
--- Comment #1 from Alex Deucher agd5f@yahoo.com --- Make sure you update to the latest rlc firmware. This is required for UVD support. Also make sure all the necessary firmware is in your initrd if you are using one or if you are compiling the driver into the kernel, you must also compile the firmware into the kernel.