[Bug 83170] Noticeably lower framerate since 10.2.5

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 27 22:12:55 PDT 2014


Matt Turner <mattst88 at gmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |mattst88 at gmail.com

--- Comment #2 from Matt Turner <mattst88 at gmail.com> ---
(In reply to comment #1)
> FYI I am perfectly willing to help debug this if someone is willing to
> coordinate with me. I've been able to build/install my own custom versions
> of the drivers, but never without some repercussions (e.g. I've never gotten
> them working enough to play TF2).

Sure. I typically do a 32-bit build of the i965 driver with:

CC="gcc -m32" CXX="g++ -m32" CFLAGS="-O2 -march=native -pipe"
CXXFLAGS="$CFLAGS" ./autogen.sh --with-dri-drivers=i965 --with-gallium-drivers=
--enable-glx-tls --enable-gles{1,2} --host=i686-pc-linux-gnu

After running make, you'll have a bunch of symlinks in a top level 'lib'
directory in your Mesa build directory.

You can set LD_LIBRARY_PATH=... and LIBGL_DRIVERS_PATH=... to that directory
and then run your application ("LD_LIBRARY_PATH=... LIBGL_DRIVERS_PATH=...
glxinfo") to use the newly build driver. No need to install over the system
Mesa at all.

Just start steam from the command line, setting the environment variables.

No obvious candidates are jumping out at me by looking at the log between
10.2.4 and 10.2.5. I'd suggest bisecting. There are only 30 commits.

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