[Bug 110659] pageflipping seems to cause jittering on mouse input when running Hitman 2 in Wine/DXVK with amdgpu.dc=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110659

--- Comment #74 from Nicholas Kazlauskas <nicholas.kazlauskas at amd.com> ---
(In reply to Michel Dänzer from comment #73)
> Looks like some client repeatedly calls XForceScreenSaver (probably to
> prevent the monitors from blanking), which results in the DPMS property
> getting re-set over and over. Nicholas, maybe the kernel could ignore such
> no-op property "updates"?

Even if it's no-op update it's still going to be locking the connector and
potentially blocking other commits from occurring so ideally the client
userspace wouldn't be dong this.

I can try writing up a patch that doesn't lock everything if the connector
state hasn't change at the very least but I'm not sure if it will fully address
the issue or not.

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