[Bug 103874] The Witcher 3: flickering regression with radeonsi

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Nov 24 03:23:20 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=103874

            Bug ID: 103874
           Summary: The Witcher 3: flickering regression with radeonsi
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: shtetldik at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

With latest Mesa master, The Witcher 3 in Wine started performing worse and it
also introduced noticeable flickering (once in a few seconds).

I was able to narrow down this flickering to these commits by Marek:

adab7f16ffd3ea4c52e8d07f40ca6ae4868c3706 2017-11-06 radeonsi: don't map big
VRAM buffers for the first upload directly

4b0dc098b2561c07c59f7dab2813640a25789bf1 2017-11-06 gallium/u_threaded: don't
map big VRAM buffers for the first upload directly

a5d3999c31e2460f690b561b41170bb7bc24fc65 2017-11-06 gallium/u_threaded: clean
up tc_improve_map_buffer_flags and prevent reentry

One commit before them this flickering doesn't occur:

OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10 / DRM 3.18.0
/ 4.13.0-1-amd64, LLVM 5.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.4.0-devel
(git-60a9705e00)

And with them, it does:

OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10 / DRM 3.18.0
/ 4.13.0-1-amd64, LLVM 5.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.4.0-devel
(git-adab7f16ff)

I'm running The Witcher3 with mesa_glthread and csmt enabled (both). You can
use latest Wine staging to test it.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20171124/c69eab1b/attachment.html>


More information about the dri-devel mailing list