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[André Oliva <755791@xxxxxxxxxxxxxxxxxx>]

After booting several times and trying to use Ubuntu, I got again 3d
acceleration, but after rebooting, no 3d acceleration again (Compiz
doesn't start, glxgears as in the screenshot). This is the same behavior
that I observed in Maverick, but I solved that disabling KMS. Now, with
the Gallium 3d drivers, as noted by Bryce, that workaround is not an
option. All I can do for now is to install Unity-2d and to use software
rasterization (`export LIBGL_ALWAYS_SOFTWARE=1` and then executing the
program), and activating Metacity composition, but of course, software
rasterization is very slow and it's "acceptable" only if the window of
the program is very small... It's strange. In Lucid radeon driver worked
fine and out of the box...

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https://bugs.launchpad.net/bugs/755791

Title:
  [RS690M] No 3d acceleration in Radeon X1200 with new Gallium r300 / 3d
  drivers in 11.04 Beta 2