[Bug 31465] [R420] KMS: Compositing unusably slow

[Bug 31465] [R420] KMS: Compositing unusably slow

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=31465

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|xorg                        |Mesa
            Version|7.5                         |unspecified
          Component|Driver/Radeon               |Drivers/DRI/r300
         AssignedTo|xorg-driver-ati@lists.x.org |dri-devel@lists.freedesktop
                   |                            |.org
          QAContact|xorg-team@lists.x.org       |

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> 2010-11-09 09:06:37 PST ---
(In reply to comment #3)
> (In reply to comment #2)
> > Are you using GL or render for composite?
> GL

In that case, this is an issue with the 3D driver.  kde is apparently hitting
some slow path.  What version of mesa are you using?  You might try mesa 7.9 or
the r300 gallium driver if you are using the r300 classic driver.

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[Bug 31465] [R420] KMS: Compositing unusably slow

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=31465

--- Comment #5 from Michael R <redm@gmx.de> 2010-11-09 10:15:27 PST ---
Ok, I upgraded mesa to Ubuntu xorg-edgers packages.
glxinfo now says:

OpenGL vendor string: X.Org R300 Project
OpenGL renderer string: Gallium 0.4 on R420
OpenGL version string: 2.1 Mesa 7.10-devel

No noticeable speed improvement however. 

Anyway, this is now more a general speed issue. I'd *expect* things to be
faster with this card, but may it's just too slow for this kind of usage.
Removing MigrationHeuristic=greedy brought KMS on par with UMS for me and that
was what the original report was about. So I guess it can be closed. Perhaps it
would be good to document this in the radeon manpage, as greedy is suggested in
most tutorials on the web about getting radeon faster.

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[Bug 31465] [R420] KMS: Compositing unusably slow

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https://bugs.freedesktop.org/show_bug.cgi?id=31465

--- Comment #6 from Martin Stolpe <martinstolpe@gmail.com> 2010-11-10 10:24:42 PST ---
I'm also experiencing this problem. The notebook has a X1400 card installed and
I'm also using KMS + Gallium (git). I've opened a bug report at KDE:
https://bugs.kde.org/show_bug.cgi?id=253903 but so far there's no solution to
the problem.

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[Bug 31465] [R420] KMS: Compositing unusably slow

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https://bugs.freedesktop.org/show_bug.cgi?id=31465

Andreas Boll <andreas.boll.dev@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #7 from Andreas Boll <andreas.boll.dev@gmail.com> ---
The classic r300 driver has been abandoned long ago.
It was replaced by the Gallium driver r300g.

If you have issues with r300g please file a new bug report with component
Drivers/Gallium/r300

Thanks.

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