[Bug 60857] Unstable display with Radeon 760G (ASUS M4A78L-M LE)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60857

--- Comment #4 from Stuart Foster <smf.linux at ntlworld.com> ---
(In reply to Alex Deucher from comment #3)
> Can you bisect?  Also just to be sure, the monitor in qestion is connected
> to the integrated chip, not the dGPU correct?  Does disabling dpm fix the
> issue?

The monitor is connected to the integrated chip on the motherboard (760G
[Radeon 3000]) Disabling dpm does fix the problem (radeon.dpm=0 on lilo append
line, the patch is still included).

dmesg now reports:

 [drm] radeon: power management initialized

as apposed to

 [drm] radeon: dpm initialized

There is no mention of any power mangement on the RV516 [Radeon X1300/X1550
Series] is that correct ?

The problem is present in vanilla 3.11-rc1.

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