[TriLUG] GLX extensions?

Randall Barlow rpbarlow at eos.ncsu.edu
Fri Apr 8 19:50:21 EDT 2005


Thanks for the replies, please see my responses below:

On Fri, 2005-04-08 at 13:44 -0400, Alan Porter wrote:
> Install nvidia's
> proprietary "nvidia" driver and you get your graphix accleration
> and dual-head support.

Actually, I have tried this too - I made a post maybe a month or two
about a problem I was having with the proprietary driver.  If I use
"nvidia" instead of "nv", the nice nVidia splash screen logo appears,
but then it never goes away (and nothing else happens).  I have dual
monitors, and the other one comes up fine, but the video card in
question seems so proud to be an nVidia card that it is going to tell me
that forever.  Could this also have something to do with the glx
extensions?

On Fri, 2005-04-08 at 16:03 -0400, johnm wrote: 
>    What does "glxinfo" say - for example my desktop box says:
> "direct rendering: No" about 3 lines down.

glxinfo says a bunch of errors, so maybe this will be useful:
name of display: :0.1
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
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
----------------------------------------------------------------------
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
0x21 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
0x22 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None


Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
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
----------------------------------------------------------------------
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
0x56 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
Xlib:  extension "GLX" missing on display ":0.1".
Xlib:  extension "GLX" missing on display ":0.1".
0x57 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
Segmentation fault

So I don't see anything about direct rendering or glx working properly :)  Any further help that the wisest of the wise of TriLUG can offer will be greatly appreciated!

Some more info in case it is relevant: I have an nVidia Riva TNT 2 (32
MB), which is getting up there in age now (I think it's 5 years old
now...but this thing was the bomb when I bought it!)  I'm running
Gentoo, and it's fully updated within a week or so.

Randy Barlow




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