#651227 Compositing unuseable with Radeon r300

Package:
kde-window-manager
Source:
kwin
Submitter:
Thomas Viehweger
Date:
2023-04-26 09:33:08 UTC
Severity:
normal
#651227#5
Date:
2011-12-06 21:16:56 UTC
From:
To:
If I enable windows effects the glxgears framerate goes down to 20 fps, moving
windows etc. is a pain.
Doing "compiz --replace" works as expected: glxgears is at the expected 60 fps
(synchronized with monitor refresh rate), wobbling windows are a real fun.

Because compiz does not work well with KDE4 I have disabled windows effects.

from /var/log/Xorg.0.log:
(II) LoadModule: "radeon"
(II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
(II) Module radeon: vendor="X.Org Foundation"
   compiled for 1.11.1.902, module version = 6.14.3
   Module class: X.Org Video Driver
   ABI class: X.Org Video Driver, version 11.0
Chipset: "ATI Radeon X1200" (ChipID = 0x791e)

from glxinfo:
GLX version: 1.4
OpenGL vendor string: X.Org R300 Project
OpenGL renderer string: Gallium 0.4 on ATI RS690
OpenGL version string: 2.1 Mesa 7.11
OpenGL shading language version string: 1.20
#651227#10
Date:
2011-12-07 00:38:11 UTC
From:
To:
That's expected. This's an upstream bug which wont be fixed anymore.
#651227#15
Date:
2012-10-14 10:02:17 UTC
From:
To:
I'm running a Radeon Mobility X700 (Gallium r300g)
glxgears gives a solid 60FPS, synchronized to the refresh rate of the
monitor.  Holds at 60FPS when KWIN effects are enabled. Granted, I
don't enable many effects other than the absolute basics.  KDE 4.8.4
gives you a lot of control over which effects you want to run.

I think this bug can be closed out.
#651227#20
Date:
2012-10-17 20:45:41 UTC
From:
To:
I retried with 4:4.8.4-3 but got similar bad results than a year ago:
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
62 frames in 5.0 seconds = 12.369 FPS
64 frames in 5.0 seconds = 12.778 FPS
...

from glxinfo:
OpenGL vendor string: X.Org R300 Project
OpenGL renderer string: Gallium 0.4 on ATI RS690
OpenGL version string: 2.1 Mesa 8.0.4
OpenGL shading language version string: 1.20
#651227#25
Date:
2012-10-18 05:33:22 UTC
From:
To:
From glxinfo, is direct rendering enabled?
Do you have a /etc/X11/xorg.conf file? If so, can you try moving it
out of the way or renaming it?

My RV410 hardware is older than the RS690 and I'm getting a solid
60FPS synched to the refresh rate of the display.
#651227#30
Date:
2012-10-18 06:57:30 UTC
From:
To:
It cant be fixed.

I'd enough and I quit.

Composting will never work and if it does, the drivers will leak memory.

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