GLX on XWin (was Re: X server 1.5.3-2 candidate)

[Yaakov (Cygwin Ports)]

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Christopher Faylor wrote:
> On Thu, Nov 13, 2008 at 07:12:42PM -0600, Yaakov (Cygwin Ports) wrote:
>> Unfortunately I don't have a linux box to experiment with... :-(
> 
> There's always http://www.virtualbox.org/ if you want to get a virtual
> linux system.

Thanks!  I setup up VirtualBox, installed Ubuntu 8.10 and set up
openssh-server in the VM, and configured the VirtualBox NAT port
forwarding per the user manual.

I then logged in with ssh -Y two different times, once from a VT running
in a XWin with GLX enabled, and then from a VT in another XWin with GLX
manually disabled (-extension GLX).  With XWin GLX enabled, glxinfo
showed all the correct information, and glxgears worked, albeit
*extremely* slowly.  With XWin GLX disabled, of course neither worked,
giving Xlib errors that GLX extension was not available.  Other X11
programs worked in both cases, but interestingly the Ubuntu GTK+ engine
was used only on the server with GLX enabled.

So now I'm somewhat reassured that I did the right thing with GLX,
although I certainly remain open to further discussion if anyone is
having different results, or if there is insight into the speed issue.


Yaakov
Cygwin/X
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