'"GLX" missing on display' Problems

[Harold L Hunt II]

http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding

Brian Ford wrote:
> Wrong list:
> 
> http://cygwin.com/lists.html
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> This is a Cygwin/X specific question.  Redirecting...
> 
> On Wed, 28 Apr 2004, eti1 wrote:
> 
> 
>>I use cygwin from home (on a Windows box) to ssh into my machine at work
>>(Linux box).  I get the following error when I try to run programs that use
>>opengl libs for displaying:
>>
>>cdernst@clinton cubit90]$ glxgears
>>Xlib:  extension "GLX" missing on display "localhost:10.0".
>>Error: couldn't get an RGB, Double-buffered visual
>>
>>When I ssh, I use the -X option so that graphics get forwarded to my local
>>machine.  I am aware that this error is usually manifested because opengl
>>libs are not installed on the local machine, but I know I have them on my
>>local machine because if I go a 'glxgears' before ssh-ing the gears
>>graphics window displays just fine.  It appears that after ssh-ing into my
>>work machine, display information is lost.
>>
>>What is very troubling with this problem is that sometimes the problem
>>altogether disappears.  For example, if I ssh into my work machine and let
>>the terminal sit for a while, it sometimes works, sometimes not.  Other
>>times after ssh-ing in, if I edit a file with "vim" I can run glxgears
>>after, but not always.  Nothing is reproducable to get it to work.  But
>>once it starts displaying, it usually doesn't stop.  I tried a complete
>>uninstall/reinstall of cygwin but it didn't do anything.
>>
>>Help!
>>--Corey
> 
> 
> Please also see:
> 
>>Problem reports:       http://cygwin.com/problems.html
> 
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