I've just noticed that 3d performances of my fx5200 256M nvidia card where far from being up to scratch. It's really slow.
I've done a dpkg-reconfigure xserver-xorg and except from the impression of having better font rendering, I can't see much 3d performance improvement. None at all actually. How can I test that the glx module is loaded ? opengl screen savers run ok, just very slow.
I know it is the nvidia driver that is being used. the nvidia-settings utility says direct rendering is not enabled. Is it the problem ?
Just noticed that in the Xorg.0.log file
(II) LoadModule: "GLcore"
(II) Loading /usr/X11R6/lib/modules/extensions/libGLcore.a
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_clip.o": No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_norm.o": No symbols found
Skipping "/usr/X11R6/lib/modules/extensions/libGLcore.a:m_debug_xform.o": No symbols found
(II) Module GLcore: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.0.0
ABI class: X.Org Server Extension, version 0.2
(II) Loading extension GLX
I guess it's the root of the problem.
further down I found
==) NVIDIA(0): Backing store disabled
(==) NVIDIA(0): Silken mouse enabled
(**) Option "dpms"
(**) NVIDIA(0): DPMS enabled
(II) Loading extension NV-CONTROL
(EE) NVIDIA(0): Failed to load GLX
(WW) NVIDIA(0): Option "UseFBDev" is not used
any help fixing that would be most welcome.
Thanks in advance