https://bugs.freedesktop.org/show_bug.cgi?id=79696
--- Comment #4 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #3)
Does this happen with particular pictures or randomly?
I haven't tried to reproduce it yet, I will try to find the time for it.
It might be worth getting the PITCAIRN_mc2.bin microcode and trying a 3.15 kernel.
I guess once I've managed to reproduce it, otherwise we don't know if it fixes anything.
PITCAIRN_mc2.bin will be included with the kernel 3.15 firmware package right?
It's available in the linuxfirmware tree: http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/comm...