Problem with Debian Sid, Xorg, nVidia and Extensions

d1s4st3r · 02-18-2005, 04:39 AM

Hi folks,
I've got the following problem: currently I have Debian Sid (with kernel 2.6.10), with latest release of Xorg from Ubuntu's repositories, and nVidia drivers version 6629.
By installing nVidia drivers in the standard way (I mean, "sh NVIDIA-Linux-x86-1.0-6629-pkg1.run"), I got kernel module working fine, but not GLX at all (even if I correctly modified xorg.conf). I have to say that I have the same configuration on my laptop but with Slackware 10.1 and everything works (GLX included), so I think my problem depends on Debian.
By launching "glxinfo" or "glxgears", I received "missing glx extension on :0.0 ...".
Well now, a few weeks ago I decided to try transparency on Xorg, so I downloaded "xcompmgr" and "transset" and modified xorg.conf like this:

Code:

# I added this to tweak on Xorg...
Section "Extensions"
    Option "Composite" "true"
    Option "RENDER" "true"
EndSection

[... bla bla bla...]

Section "Device"
    Identifier  "nVidia GeForceFX 5900"
    Driver      "nvidia"
    # ... and this, by following a tutorial
    Option "RenderAccel" "true"
EndSection

Transparency is cool, but I'd love to have GLX, so finally I decided to install "nvidia-glx" package with APT.
Now, when I launch X and try "glxinfo" or "glxgears", I get a loud and clear "Segmentation fault", nothing else.
I noticed, by reading Xorg logs, that

Code:

(EE) GLX is not supported with the Composite extension.

Ok, but if I comment out (or remove) the new lines I added to xorg.conf a few weeks ago to have transparency working, when I launch X I see shitty dirty green lines on white background, then X dies silently...
What could I do now?
If I have to remove the Composite extension to have GLX working, goodbye Composite extension!!! But if I remove it, X doesn't work.
Please help me I'm getting mad!!!
Thanks very much!

ankscorek · 02-18-2005, 05:02 AM

instead of reconfiguring your xorg.conf i would suggest that since u have kernel 2.6.10 u should reconfigure it and build in the module for nvidia graphic card

it will work as smooth as a fish

d1s4st3r · 02-18-2005, 10:49 AM

Thanks for the suggestion, but...
how can I do that?
I mean, nVidia drivers are distributed as binary files (also Debian package "nvidia-kernel-source" with "apt-get source nvidia-kernel-source").
How can I build nVidia module into the kernel?
I use a custom 2.6.10 vanilla kernel (no patches), and I compile and install it in stardard way (no Debian-way).
And why deletion of Xorg's extensions make X server die?
Thanks anyway!

d1s4st3r · 02-18-2005, 10:58 AM

Thanks for the suggestion, but...
how can I do that?
I mean, nVidia drivers are distributed as binary files (also Debian package "nvidia-kernel-source" with "apt-get source nvidia-kernel-source").
How can I build nVidia module into the kernel?
I use a custom 2.6.10 vanilla kernel (no patches), and I compile and install it in stardard way (no Debian-way).
And why deletion of Xorg's extensions make X server die?
Thanks anyway!

jaws_tas · 02-24-2005, 01:20 AM

You should try adding the line:

Option "AllowGLXWithComposite" "true"

in the device section of xorg.conf

GLX apps will run with Composite overlays but they are slower than when you use the OpenGL overlays. Unfortunately you have to choose between Composite for eye candy or OpenGL for rendering speed.

If you want to use OpenGL overlays, disable the composite extension - but you wont be able to use transparency/shadows etc.

Moloko · 05-05-2005, 07:18 PM

I didn't get Xorg from Ubuntu and had little trouble with it (also Nvidia here). Is there any news on using Composite with Glx? It's a pity they don't play nice, but I suppose it will get fixed?