Re: [ROOT] WARNING about ROOT with OpenGL

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Nov 17 2004 - 19:07:35 MET


Hi Christian,

Yes, I should have mentionned that the problem is with MesaGL.

When installing ROOT from source, configure takes first the versions in /usr.
FedoraCore2 ships with a bad version of MesaGL in /usr

May be configure should be changed to start with other possible GL versions?

Rene Brun

Christian Holm Christensen wrote:
> 
> Hi Rene,
> 
> On Wed, 2004-11-17 at 16:33 +0100, Rene Brun wrote:
> > We had recently several reports about ROOT crashing when starting the OpenGL
> > viewer. We have now identified the problem to be with the GL versions shipped
> > with some Linux flavours, including recent versions like FedoraCore2 or SLC3.
> > Please check the file in /usr/include/GL/gl.h
> > If this file indicates 3.4, 3.5 or even worst 5.2, you should upgrade
> > your GL version to the current GL release 6.2.
> > You can import this version from http://mesa3d.org
> 
> I guess this is only true if you're using `real' Mesa.
> 
> If you're using the `XFree86' GL libraries, then version 4.0.4 works
> fine for me.
> 
>         OS:             Debian GNU/Linux unstable (sid)
>         XFree86:        4.3.0 (dfsg 1)
>         GL:             xlibmesa-gl-dev 4.3.0, nvidia-glx-dev 1.0.6629
> 
> GL kept SIGSEGV on me some time ago, but that was due to an incomplete
> build (my mistake).
> 
> Yours,
> 
> --
>  ___  |  Christian Holm Christensen
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