https://bugs.freedesktop.org/show_bug.cgi?id=110845
Bug ID: 110845
Summary: [DC-only][regression] cannot select full refresh rate
on 5.2rc - 144Hz 2560x1440
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: mcoffi...@gmail.com
Somewhere between 5.1 and amd-staging-drm-next for 5.2-rc1, I stopped being
able to set my Acer XV272U 144Hz 1440p display in its 144Hz setting at
2560x1440 resolution.
1920x1080@144Hz still works.
This only happens under the display core driver. Setting amdgpu.dc=0 fixes it,
but that is not needed on the 5.1 kernel.
I will bisect tonight when I get home and have access to my AMD card.
Card: XFX RX 590
Kernel: current AMD-staging-drm-next HEAD.
The issue occurs both in Xfce4, and in sway (wayland), so I’m assuming that the
desktop environment has little to do with the issue.
Sorry for bad formatting on mobile, I wanted to get this in and filed with the
5.2 release coming up.
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