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

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

--- Comment #62 from iuno@posteo.net --- 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.