[Bug 106175] amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Apr 24 23:14:50 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=106175

--- Comment #10 from Mike Bendel <mike at exophase.com> ---
I have the same issue. For me amdgpu.dc=0 does not really fix it either. I have
a 3840x1600 monitor running at 75 Hz. This is the different behavior I noticed
when toggling the DC setting:

amdgpu.dc=0

Moving windows smooth most of the time but cursor frequently skips frames

amdgpu.dc=1

There is stutter/tearing in the movement of windows but the cursor is
completely smooth otherwise.

Running 4.16.2 kernel here with a Radeon Pro WX 7100.

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