[Bug 93826] 2560x1440 @144Hz graphic glitches and bad refresh rate

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93826

--- Comment #63 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to iuno from comment #62)
> It works for me, too, but I already said that ;-)
> 
> However, the problem Pavel describes is another bothersome issue. PowerPlay
> changes to the higher memory DPM state which results in ~40 Watts (Hawaii;
> estimated from memory, have to measure and confirm again) more power draw.
> The higher DPM state is required, otherwise the flickering appears.
> On Windows, this isn't the case and WQHD at 144 Hz works with the low memory
> clock. I assume they raise the voltage independently to the clock in that
> case to maintain stability.

Are you forcing the power state to high?  The mclk shouldn't be affected by the
display clock.

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