Comment # 9 on bug 82473 from dimangi42@gmail.com

(In reply to comment #8)
> (In reply to comment #7)
> > This has never worked. The HW works fine with older kernels and proprietary
> > drivers. Tried with VGA connector, and with with the radeon.audio=0 without
> > change in the behavior.
> 
> Which older kernels worked?  Can you bisect?

3.10.20, but like said it's with proprietary drivers. OpenELEC "distro" to be
exact.