[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 #30 from Alex Deucher <alexdeucher at gmail.com> ---
Does forcing the mclk to high help? As root:
echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level

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