Re: Trouble shooting GLX

On Sat, 24 Jun 2006 06:10:20 -0700, Jeanette Russo staggered into the
Black Sun and said:
My GLX/Open GL does not work. I installed the nvidia drivers on
Fedora Core 5 and everything works but no acceleration.

hostname:~$ glxinfo | grep rendering
I get "xlib extension glx missing on display :0.0"
Error couldn't find RGB GLX visual

it said to edit /etc/x11/xorg.conf and make sure

Load "dri"
Load "glx"

EndSectionWere in the appropriate sections which they were not, so I
added those lines. Restarted X, but I get the same error message when
I run glxinfo. I have installed all the nvidia drivers,

The evil nVidia modules come in 2 parts; nvidia-kernel and nvidia-glx.
At least, that's how Gentoo sets them up--who knows what FC "permanent
rolling beta" 5 has done? Both parts need to be installed, and both
parts need to have the same version#.

"grep Driver /etc/X11/xorg.conf" should return a number of lines and one
like so:
Driver "nvidia"
....if it doesn't, X has not been set up to use the evil binary-only
nVidia X module. The Driver line is in xorg.conf's Device section; if
it's "vesa" or "nv", fix it.

Also, "lsmod | grep nv" should return a line like so:
nvidia 4081040 12
....this means the evil binary-only kernel module has been loaded. If is
hasn't been loaded, modprobe it. If "modprobe nvidia" fails, reproduce
the error message for us. If it doesn't fail, and X starts working
with accelerated 3D, put "nvidia" in your distro's equivalent of
/etc/modules.autoload.d/kernel-2.6 so it's modprobed at boot.

One more thing: The most recent versions of the evil binary-only
modules do not support really old nVidia cards like the TNT2. If you've
got a really old card, you want to use an older module version, like
6111. HTH,

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / mail: TRAP + SPAN don't belong
http://www.brainbench.com / "He is a rhythmic movement of the
-----------------------------/ penguins, is Tux." --MegaHAL
.

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