Like I commented on bug 385539, I fixed this temporarily by installing libgl1-mesa-dri and libgl1-mesa-glx from the Jaunty repositories.
I'm now getting
direct rendering: No (LIBGL_ALWAYS_INDIRECT set)
and
OpenGL vendor string: Tungsten Graphics, Inc. OpenGL renderer string: Mesa DRI R200 20060602 AGP 8x x86/MMX+/3DNow!+/SSE TCL OpenGL version string: 1.3 Mesa 7.4
from glxinfo, and glxgears flicker.
Desktop effects are back to Jaunty-speeds, though. I thought I'd have to go back to 9.04, but this should tide me over.
Like I commented on bug 385539, I fixed this temporarily by installing libgl1-mesa-dri and libgl1-mesa-glx from the Jaunty repositories.
I'm now getting
direct rendering: No (LIBGL_ ALWAYS_ INDIRECT set)
and
OpenGL vendor string: Tungsten Graphics, Inc. /3DNow! +/SSE TCL
OpenGL renderer string: Mesa DRI R200 20060602 AGP 8x x86/MMX+
OpenGL version string: 1.3 Mesa 7.4
from glxinfo, and glxgears flicker.
Desktop effects are back to Jaunty-speeds, though. I thought I'd have to go back to 9.04, but this should tide me over.