On Fri, Sep 9, 2011 at 4:54 PM, DRC <dcomman...@users.sourceforge.net>wrote:
> On 9/9/11 2:00 PM, Kevin Van Workum wrote:
> > I would like to use the turbovnc server on my linux cluster nodes, but
> > they do not have graphics cards with 3D acceleration:
> >
> > # lspci | grep VGA
> > 08:01.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02)
> >
> > Is it possible to use turbovnc server without VirtualGL and still be
> > able to run OpenGL applications? It works fine with tightvnc.
>
> You don't mean TigerVNC, do you? TightVNC never had GLX. TurboVNC is
> based upon TightVNC, which is why it doesn't have GLX either (hence the
> need for VirtualGL.) Supporting software OpenGL/GLX in VNC requires a
> newer X server code base that can do DRI plugins. That's how RealVNC
> and TigerVNC are able to provide that feature.
>
>
> > Or is it possible to get VirtualGL working somehow:
> >
> > $ /opt/VirtualGL/bin/glxinfo -display :0 -c | grep -i OpenGL
> > OpenGL vendor string: Mesa project: www.mesa3d.org <
> http://www.mesa3d.org>
> > OpenGL renderer string: Mesa GLX Indirect
> > OpenGL version string: 1.2 (1.5 Mesa 6.5.1)
> > OpenGL extensions:
>
> Probably not, because VirtualGL requires Pbuffers, and AFAIK, Mesa
> doesn't support them.
>
> I don't know of a solution to this with TurboVNC. The latest bleeding
> edge code in the TigerVNC trunk should be compatible with the TurboVNC
> server, however, so you could use it in conjunction with the TurboVNC
> Viewer if you wanted. I'll be happy to spin a build for you if you want
> to try that approach.
>
Well thanks for your help. For now I'll have to use TurboVNC/VirtualGL on
the nodes that have 3D graphics cards in them and TigerVNC on the other
nodes. I was hoping to be able to use only one setup for ease of use, but
this will work. May I make a feature request for TurboVNC to support
software OpenGL/GLX in the absence of VirtualGL?
>
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Kevin Van Workum, PhD
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