Use remote graphical program

[Gustavo Seabra]

On Jan 3, 2008 7:08 AM, Phil Betts <Phil.Betts@ascribe.com> wrote:
> Larry Hall (Cygwin X) wrote on Thursday, December 27, 2007 1:40 AM::
>
> > horacioemilio wrote:
> >> Hi,
> >>
> >> I am trying to use a remote program which is installed on a remote
> >> linux machine. In these situations I usually do;
> >>
> >> 0) on my windows machine I start cygwin and afterwards use
> >> startxwin.sh
> >>
> >> 1) ssh -X name-of-the-gateway-machine
> >>
> >> 2) ssh -X name-of-the-linux-machine-inside-the-remote-network
> >>
> >> 3) program-name &
> >>
> >> and programs like emacs or firefox appear on my desktop.
> >>
> >> But for some other program which uses more advanced graphics it does
> >> not work, I get the following error message;
> >>
> >> user@machine:~> Xlib:  extension "GLX" missing on display
> >> "localhost:10.0" . Xlib:  extension "GLX" missing on display
> >> "localhost:10.0".
> >
> > <snip>
> >
> >>
> >> Do you know how could I overcome this situation ?
> >
> > This is more appropriately directed to the Cygwin X list.  I've reset
> > the "Reply-To" there.  Please send any follow-up the the Cygwin X
> > list.
> >
> >  From the above, it's clear the application you're trying to use wants
> > to access the underlying hardware (via OpenGL).  This is not supported
> > in the current Cygwin X server.  I believe there is a MinGW version
> > which has some support for this though.  You may want to investigate
> > that.
> >
> > --
> > Larry Hall                              http://www.rfk.com
> > RFK Partners, Inc.                      (508) 893-9779 - RFK Office
> > 216 Dalton Rd.                          (508) 429-6305 - FAX
> > Holliston, MA 01746
>
> There is an experimental, but (in my experience) very stable, version
> of XWin with GLX support.  This is in package xorg-x11-xwin-gl and
> installs the executable XWin_GL.exe.  You would need to alter your
> startxwin.sh to run this instead of XWin.exe.  It works, just don't
> expect great performance.
>
> Phil

That's interesting... Last time I checked, there was no maintainer for
X in Cygwin, but I do admit that was some time ago. So, I'm very
curious to learn about this newer XWin version. If you don't mind, I'd
like to ask a couple of questions:

1. Is this package available through setup.exe? Or do we need to
recompile it for Cygwin ourselves?

2. What do you mean by "don't expect great performance."? Is it a GLX
issue or something related to this particular version of XWin, as
compared to the older ones?

Thanks a lot!
Gustavo.

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