a trouble with OpenGL

a trouble with OpenGL

[Adwin]

hello.

	I am using Mandrake 8.2 with KDE 3.02. Every time I run a qt program (even it 
is a helloworld) from my console, it always display "Loading Required 
libGL.so.1.3.401" on console. The program run as usually.
I have been checked my /usr/X11R6/lib/ and I can found a libGL.so.1.3.401. 
I have been try to make a link (ln -s libGL.so.1.3.401 libGL.so), and it still 
doesn't work.

I have another problem, I tried to install NVIDIA graphic driver for Linux 
(driver for : RivaTNT2). The drivers (rpm)  that I installed are :
1. NVIDIA_GLX-1.0-3123.i386.rpm (GLX)
2. NVIDIA_kernel-1.0-3123.mdk82up.i586.rpm ( kernel driver)
After I restart my X Server, now I completly cannot run any openGL application 
on Linux. It always said : "  OpenGL not supported " 

I checked on /usr/X11R6/lib again, and I found that 
all libGL* was renamed become 
xxx.libGL.so.1.2.RPMSAVE*
xxx.libGL.so.1.3.401.RPMSAVE*
xxx.libGL.so.x.RPMSAVE*
xxx.libGL.so.1.0.RPMSAVE*

What should I do to make my system work well again (especially OpenGL)? 


thxs 
adwin

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a trouble with OpenGL (additional information)

[Adwin]

addtional information : 

I have just found in /usr/lib (not in /usr/X11R6/lib)

lrwxrwxrwx    1 root     root           21 Sep 16 08:42 libGLcore.so.1 -> 
libGLcore.so.1.0.3123*
-r-xr-xr-x    1 root     root      3623820 Aug 28 06:36 libGLcore.so.1.0.3123*
lrwxrwxrwx    1 root     root           10 Sep 16 08:42 libGL.so -> 
libGL.so.1*
lrwxrwxrwx    1 root     root           17 Sep 16 08:42 libGL.so.1 -> 
libGL.so.1.0.3123*
-r-xr-xr-x    1 root     root       283444 Aug 28 06:36 libGL.so.1.0.3123*

can I remove those file into /usr/X11R6/lib  ? 

thanxs
adwin



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Re: a trouble with OpenGL (additional information)

[Ray Olszewski]

At 09:41 AM 9/16/02 +0700, Adwin wrote:
>addtional information :
>
>I have just found in /usr/lib (not in /usr/X11R6/lib)
>
>lrwxrwxrwx    1 root     root           21 Sep 16 08:42 libGLcore.so.1 ->
>libGLcore.so.1.0.3123*
>-r-xr-xr-x    1 root     root      3623820 Aug 28 06:36 libGLcore.so.1.0.3123*
>lrwxrwxrwx    1 root     root           10 Sep 16 08:42 libGL.so ->
>libGL.so.1*
>lrwxrwxrwx    1 root     root           17 Sep 16 08:42 libGL.so.1 ->
>libGL.so.1.0.3123*
>-r-xr-xr-x    1 root     root       283444 Aug 28 06:36 libGL.so.1.0.3123*
>
>can I remove those file into /usr/X11R6/lib  ?

It is difficult to say for certain, but probably not. On my system (Debian 
Sid), the equivalent libraries are located in /usr/X11R6/lib/, but /usr/lib 
contains symlinks to them. This arrangement implies that some applications 
expect to find them in one place, others in the other. So your safer course 
is to put symlinks in /usr/X11R6/lib that point to the actual libraries 
("man ln" if you need to learn how to do this).


--
-------------------------------------------"Never tell me the odds!"--------
Ray Olszewski					-- Han Solo
Palo Alto, California, USA			  ray@comarre.com
-------------------------------------------------------------------------------

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Re: a trouble with OpenGL (additional information)

[Adwin]

On Monday 16 September 2002 09:58, Ray Olszewski wrote:
>
> It is difficult to say for certain, but probably not. On my system (Debian
> Sid), the equivalent libraries are located in /usr/X11R6/lib/, but /usr/lib
> contains symlinks to them. This arrangement implies that some applications
> expect to find them in one place, others in the other. So your safer course
> is to put symlinks in /usr/X11R6/lib that point to the actual libraries
> ("man ln" if you need to learn how to do this).

I have already make a ln (ln -s /usr/X11R6/lib/liGLU.so libGLU.so) in 
/usr/lib.

when I try to compile / make a program, it compiled successfully. But, when I 
try to run the program it always error :

Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Failed to Create Window : Couldn't find matching GLX visual

Must I re-install Mesa3D & uninstall NVIDIA driver that I have just installed 
? 

-- 
./me
adwin

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Re: a trouble with OpenGL (additional information)

[pa3gcu]

On Monday 16 September 2002 04:10, Adwin wrote:
> On Monday 16 September 2002 09:58, Ray Olszewski wrote:
> > It is difficult to say for certain, but probably not. On my system
> > (Debian Sid), the equivalent libraries are located in /usr/X11R6/lib/,
> > but /usr/lib contains symlinks to them. This arrangement implies that
> > some applications expect to find them in one place, others in the other.
> > So your safer course is to put symlinks in /usr/X11R6/lib that point to
> > the actual libraries ("man ln" if you need to learn how to do this).
>
> I have already make a ln (ln -s /usr/X11R6/lib/liGLU.so libGLU.so) in
> /usr/lib.
>
> when I try to compile / make a program, it compiled successfully. But, when
> I try to run the program it always error :
>
> Xlib:  extension "GLX" missing on display ":0.0".
> Xlib:  extension "GLX" missing on display ":0.0".
> Failed to Create Window : Couldn't find matching GLX visual
>
> Must I re-install Mesa3D & uninstall NVIDIA driver that I have just
> installed ?

I belive you need to read the documentation witch came with the NVIDIA 
driver, further more if you read and interpret the error message above it 
says, Xlibaray can't find the "GLX" extention module in your display 
enviroment.

In other words edit your XF86Config file as per the NVIDIA doc's.
Under the "modules" section" you need;
# This loads the GLX module
    Load       "glx"


-- 
Regards Richard
pa3gcu@zeelandnet.nl
http://people.zeelandnet.nl/pa3gcu/

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Re: a trouble with OpenGL (additional information)

[Bryan Whitehead]

Adwin wrote:
> On Monday 16 September 2002 09:58, Ray Olszewski wrote:
> 
>>It is difficult to say for certain, but probably not. On my system (Debian
>>Sid), the equivalent libraries are located in /usr/X11R6/lib/, but /usr/lib
>>contains symlinks to them. This arrangement implies that some applications
>>expect to find them in one place, others in the other. So your safer course
>>is to put symlinks in /usr/X11R6/lib that point to the actual libraries
>>("man ln" if you need to learn how to do this).
> 
> 
> I have already make a ln (ln -s /usr/X11R6/lib/liGLU.so libGLU.so) in 
> /usr/lib.
> 
> when I try to compile / make a program, it compiled successfully. But, when I 
> try to run the program it always error :
> 
> Xlib:  extension "GLX" missing on display ":0.0".
> Xlib:  extension "GLX" missing on display ":0.0".
> Failed to Create Window : Couldn't find matching GLX visual
> 
> Must I re-install Mesa3D & uninstall NVIDIA driver that I have just installed 
> ? 
> 
your probably running X using the old "nv" opensource driver, so the 
NVidia driver - although installed - is not being used. while in X open 
an xterm and type "lsmod" and see if "Used By" is greater than 0 for the 
NVidia module.

In your /etc/X11/XF86Config-4 file make sure in the device section that 
Driver is "nvidia".

-- 
Bryan Whitehead
SysAdmin - JPL - Interferometry Systems and Technology
Phone: 818 354 2903
driver@jpl.nasa.gov

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Re: a trouble with OpenGL (additional information)

[Tim Kay]

Oh what fun,
	in addition to the information above please note that kernels compiled
with a GCC3.*.* and modules compiled with GCC2 (ie the nvidia driver)
don't always co-exist happily (at least according to hedrat). On my
machine just adding the /etc/modules.conf line is not enough to get the
nvidia module to load, I have to insmod -f the thing - it does work
happily once it's forced in though, the refusal to insert the module in
the kernel may be a modutils issue so YMMV as always.

Tim


On Mon, 2002-09-16 at 05:10, Adwin wrote:
> On Monday 16 September 2002 09:58, Ray Olszewski wrote:
> >
> > It is difficult to say for certain, but probably not. On my system (Debian
> > Sid), the equivalent libraries are located in /usr/X11R6/lib/, but /usr/lib
> > contains symlinks to them. This arrangement implies that some applications
> > expect to find them in one place, others in the other. So your safer course
> > is to put symlinks in /usr/X11R6/lib that point to the actual libraries
> > ("man ln" if you need to learn how to do this).
> 
> I have already make a ln (ln -s /usr/X11R6/lib/liGLU.so libGLU.so) in 
> /usr/lib.
> 
> when I try to compile / make a program, it compiled successfully. But, when I 
> try to run the program it always error :
> 
> Xlib:  extension "GLX" missing on display ":0.0".
> Xlib:  extension "GLX" missing on display ":0.0".
> Failed to Create Window : Couldn't find matching GLX visual
> 
> Must I re-install Mesa3D & uninstall NVIDIA driver that I have just installed 
> ? 
> 
> -- 
> ./me
> adwin
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
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-- 
-----------------------------
Tim Kay
Systems programmer
Queen Mary University of London

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