[plt-scheme] avoiding GLX warnings

On Sun, 27 Mar 2005 13:52:29 -0500, Doug Orleans <dougo at place.org> wrote:
>   For list-related administrative tasks:
>   http://list.cs.brown.edu/mailman/listinfo/plt-scheme
> 
> When I make a canvas% on a VNC X display, I get these warnings:
> 
> MrEd version 299.101, Copyright (c) 2004-2005 PLT Scheme, Inc.
> > (define frame (instantiate frame% ("foo")))
> > (define canvas (instantiate canvas% (frame)))
> Xlib:  extension "GLX" missing on display ":1.0".
> Xlib:  extension "GLX" missing on display ":1.0".
> Xlib:  extension "GLX" missing on display ":1.0".
> >
> 
> I guess the VNC X server doesn't have a GLX emulator.  Is there a way
> to avoid these warnings?

They come from the Xlib C library, so maybe ignore stderr with "mred
2>/dev/null" ?

Or try a VNC X server with the RENDER and GLX extensions:
http://xf4vnc.sourceforge.net/

Or a GLX-enabled Java X server (then you can have MrEd in your browser!)
http://percro.sssup.it/~pit/weirdxglx/index.html

Daniel