[Bug 110199] [amdgpu] Screen flickering when using a 75Hz monitor paired with an RX 480 GPU

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110199

--- Comment #9 from Eduardo Saporski <esaporski at protonmail.com> ---
Can confirm. My GPU is MSI RX580 Armor 8G OC and my monitor Asus VP247QG
(FreeSync, 48Hz to 75Hz).

I'm on Solus 4 using the open source drivers (POLARIS10 DRM 3.27.0
5.0.5-113.current LLVM 7.0.0, OpenGL version 4.5, Mesa 19.0.0) and the
flickering is exactly like Maxim showed.

The workaround is setting DPM to high:
"echo 'high' > /sys/class/drm/card0/device/power_dpm_force_performance_level"

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