Gavin Seddon posted <1137325416.10035.4.camel@linuxstation
>, excerpted
below,  on Sun, 15 Jan 2006 11:43:36 +0000:

> I'm logging onto work and trying to start an application.  It fails
> telling me 'unable to start opengl window'.  I have merged
> 'x11-base/opengl-update' and my resolution is 1600x1200 using an sgi
> monitor.  My screen depth is 24.  Can anyone help?

You are trying to run it remotely, logging into work from home (or
wherever)?

Normal 2-D X is a network transparent protocol -- it will work over the
network just fine, as long as your network bandwidth and latency are low
enough, and you have permissions set to allow it.

3-D, OpenGL and the like, however, use direct-rendering.  They require
that you be working on the same machine, due to the additional hardware
requirements of 3-D.  You can't forward OpenGL applications using X
forwarding, as you can with 2-D apps.

There is, however, a workaround.  Rather than using X forwarding, use 
something like VNC.  This isn't quite as efficient, but it works if the
connection is fast enough.  There are several VNC choices in the portage
tree.  I don't have a use for remote desktop services, so I couldn't tell
you how they differ or which works best.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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