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Martin Vogt wrote:
> Hello list,
>
> I just found out, that on my OpenSuSE 11.1 systems,
> I cannot use "glDrawArrays" -in all scenarios- anymore.
>
> The Attachment is a demo program.
> The program works on local X Servers.
> This program has some issues for me which I posted on freeglut-devel:
>
> http://sourceforge.net/mailarchive/forum.php?forum_name=freeglut-developer
>
> But it makes clear what I intent to do -- paint a quad :)
> (This demo does not work for me in all cases, for me I use a qt
> program which does not have the glut issues)
>
> The Problem:
> ============
>
> If I login over ssh from my workstation (X11 server with nvidia drivers)
> into a remote system with mesa drivers and start the demo program
> I only get an empty window.
>
> I have read about the nvidia "AllowUnofficialGLXProtocol" option,
> which does not work too.
Right. I suspect this just enables some protocol for vertex buffer
objects that they are developing.
> Is there a known incompatibility between Mesa GLX and NVidia
> X11 Servers for "glDrawArrays"?
>
> Should this work?
It should work.
You might try setting LIBGL_NO_DRAWARRAYS in the environment as a
temporary work-around.
I'll talk to my Nvidia contacts and see if we can figure out what's
going wrong. Could you submit a bug in bugzilla?
> Maybe its only my OpenSuse 11.1 system which have this issue?
>
> I know that suse applies this patch
> (with the name:Mesa_indirect_old_xserver_compatibility.diff)
>
>> diff --git a/src/glx/x11/glxext.c b/src/glx/x11/glxext.c
>> index b6bdbd5..9be1358 100644
>> --- a/src/glx/x11/glxext.c
>> +++ b/src/glx/x11/glxext.c
>> @@ -720,8 +720,8 @@ __glXInitialize(Display * dpy)
>> dpyPriv->dri2Display = dri2CreateDisplay(dpy);
>> dpyPriv->driDisplay = driCreateDisplay(dpy);
>> }
>> - if (glx_direct)
>> - dpyPriv->driswDisplay = driswCreateDisplay(dpy);
>> +// if (glx_direct)
>> +// dpyPriv->driswDisplay = driswCreateDisplay(dpy);
>> #endif
>>
>> if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) {
>
> but because of some issues with dri2proto etc.... I cannot really
> test current versions. (I wonder how they build mesa anyway)
>
> So the question is:
>
> Should "glDrawArrays" work with mesa indirect and nvidia drivers on the
> X11 Server?
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