[osg-users] osgdem segmentation fault

Jean-Sébastien Guay jean-sebastien.guay at cm-labs.com
Thu Sep 18 09:00:05 PDT 2008


Hi Ben,

> Hardware: Intel Integrated Graphics G965
> Driver:   The Intel graphics driver (intelfb.ko)
> OS Kernel: Linux 2.6.24, if this matters.

Yeah, integrated graphics generally don't fare well with FBOs or 
pbuffers. Hopefully it shouldn't crash though, it should tell you it's 
not supported and exit...

>>     osgprerender cow.osg --pbuffer.
> 
> This results in segmentation fault. Even without the --pbuffer option it 
> results in segmentation fault.
> 
> So yes sorry for bothering you much Rob. It is not a osgdem bug. 
> However, it will be great if you can suggest a workaround or solution.

Does Mesa support pbuffers or FBOs? It would be completely software, 
thus slow, but it might work...

osgdem really needs a graphics context to do some of its processing, and 
in order not to pop up a graphics window it uses pbuffer rendering, so 
the only other alternative would be to get a better graphics card 
(though that looks like a laptop so you would probably need to run 
osgdem on another machine that has one).

J-S
-- 
______________________________________________________
Jean-Sebastien Guay    jean-sebastien.guay at cm-labs.com
                                http://www.cm-labs.com/
                         http://whitestar02.webhop.org/



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