[Bug 75649] Glitchy output using only HDMI on laptop with AMD Mobility Radeon HD 3450/3470

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75649

--- Comment #9 from Alex Deucher <agd5f at yahoo.com> ---
(In reply to comment #8)
> I have been looking in the xf86-video-ati repo at drmmode_display.c and the
> drmmode_sf86crtc_resize() function but can't find anything so far.
> 
> It seems from Paul's comments that the issue may be related to the refresh
> rate as well. Are there any suggestion as to places to look in the code?

Everything that touches the hw is in the kernel driver.  Does disabling dpm fix
the issue?

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