Comment # 8 on bug 82588 from Alex Deucher

(In reply to comment #6)
> With linux-3.16.1 it works.
> lspci:
> 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> RS740 [Radeon 2100]

I don't think this is related to the original report since it's a different
chip, but it would be nice if both you and Mike could bisect.