From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 110659] pageflipping seems to cause jittering on mouse input when running Hitman 2 in Wine/DXVK with amdgpu.dc=1
Date: Thu, 22 Aug 2019 14:44:04 +0000 [thread overview]
Message-ID: <bug-110659-502-hsw2EeP6Me@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-110659-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=110659
--- Comment #39 from Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> ---
Disabling the compositor doesn't make a difference as far as stuttering goes
for Hitman 2's DXVK - I don't see any commits in the log that are lock the
connector and all the planes.
I don't have Oblivion on my machine to test, but I tried running the DX9
version of Heaven under proton and I don't see stuttering or any gamma/color
adjustment commits under that either. No issues with FreeSync when running it
either from what I can tell with vsync both on/off.
Those commits are definitely what's causing your stuttering, but I'm not sure
what's actually creating them. My initial guess was something in the
compatibility layer for DX9 games, but I don't see that on my setup.
Is it only Oblivion that has this issue for you?
I'm not sure how much of this can be a kernel level fix - I think we need to
lock all the planes whenever gamma or color adjustments have been made and that
probably includes the cursor plane as well. If the cursor plane is included
that will block asynchronous cursor updates from occurring until the color
adjustments have been done. This is why the cursor causes stuttering.
A check could potentially be made to not lock all the planes for redundant
color management commits, but I'm not sure if the color adjustments requested
are redundant or not. It could be the case that the application is requesting
different color adjustments every single time.
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[not found] <bug-110659-502@http.bugs.freedesktop.org/>
2019-05-15 10:15 ` [Bug 110659] pageflipping seems to cause jittering on mouse input when running Hitman 2 in Wine/DXVK with amdgpu.dc=1 bugzilla-daemon
2019-05-15 12:17 ` bugzilla-daemon
2019-05-16 16:06 ` bugzilla-daemon
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