xorg 7.0 (glx problems--Error: couldn't find RGB GLX visual)
I recently upgraded to xorg 7.0 and am experiencing strange problems that seem
to be related to GLX (I think). I first noticed that playing back video
seemed choppy, with a perceptible pause at 5 second intervals that was not
there previously (xorg <= 6.9). I then tried some 3D apps and found that
glxgears and glxinfo had been removed in the upgrade. I re-installed them
with the mesa-utils package.
Now, when I type glxinfo I get the following output:
$ LIBGL_DEBUG=verbose glxinfo
name of display: :0.0
Error: couldn't find RGB GLX visual
visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
0x23 24 tc 0 -1 0 r y . -1 -1 0 0 0 16 0 0 0 0 0 0 0 None
0x24 24 tc 0 -1 0 r y . -1 -1 0 0 0 16 8 16 16 16 0 0 0 None
0x25 24 tc 0 -1 0 r y . -1 -1 8 0 0 16 8 16 16 16 16 0 0 None
0x26 24 tc 0 -1 0 r . . -1 -1 8 0 0 16 8 16 16 16 16 0 0 None
0x27 24 dc 0 -1 0 r y . -1 -1 0 0 0 16 0 0 0 0 0 0 0 None
0x28 24 dc 0 -1 0 r y . -1 -1 0 0 0 16 8 16 16 16 0 0 0 None
0x29 24 dc 0 -1 0 r y . -1 -1 8 0 0 16 8 16 16 16 16 0 0 None
0x2a 24 dc 0 -1 0 r . . -1 -1 8 0 0 16 8 16 16 16 16 0 0 None
For the same reason glxgears fails to run.
My Xorg.log also contains some suspicious lines, which seem to be related to
the above error:
===========excerpt from Xorg.0.log====================
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
(II) Initializing built-in extension XEVIE
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
No matching visual for __GLcontextMode with visual class = 1 (32774), nplanes
=
4294967295
(**) Generic Keyboard: Core Keyboard
(**) Option "Protocol" "standard"
==================================================
Googling led me to http://wiki.debian.org/Xorg69To7 where it is explained
in "DRI with i810" that some of the newer drivers (the i810 in particular)
break mesa. However, I am using the radeon driver on an HP nx6125 [ATI Radeon
XPRESS 200M 5955 (PCIE)]. Has anyone else experienced these problems? Any
fixes? (I suspect that my apparent lack of 2D acceleration is related to
these problems also, but can't be sure.)
Other relevant info. I had recently installed the proprietary version of fglrx
8.25.18 but was not using it when I upgraded (I had reverted to the radeon
driver. Further, the fglrx driver was removed during the upgrade).
Thanks for your time.
Richard
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