I think you are correct. I tried from a windows box using exceed and it failed 
the same way. I also was reading deep in the ATI documentation that they 
dropped compatibility support for working with standard linux GL. 

Well time to go buy a nvidia :)
Nate
On Monday Monday 07 June 2010 1:56 pm DRC wrote:
> Since GLXgears is seg faulting when it is run without VirtualGL, then I
> suspect that this is due to an interaction problem between the server's
> OpenGL library and the client's OpenGL library.  Thus, it is not a bug
> in VirtualGL.  Several things you should try:
> 
> (1) Try using a different machine, preferably with a different type of X
> server, as the client.
> 
> (2) Try disabling the GLX extension on the client.  If my theory is
> correct, then this should make GLXgears run properly with VirtualGL
> (but, of course, it will no longer run without VirtualGL.)
> 
> (3) Execute 'vglrun +tr glxgears'.  If my theory is correct, then the
> failure should occur during glXChooseVisual().  That is when VirtualGL
> probes the 2D X server (the X server running on the client machine) to
> attempt to figure out if it has OpenGL capabilities.
> 
> Since the failure is reproducible without VirtualGL, then it warrants
> contacting ATI support.  It seems that their libGL implementation may
> not be properly detecting whether the display is remote or local, and
> perhaps it is trying to use direct OpenGL rendering on the remote
> display.  That would explain why it works when you set
> LIBGL_ALWAYS_INDIRECT=yes.
> 
> On 6/7/10 11:26 AM, Nate Fuhriman wrote:
> > I have a ATI graphics card and the libraries I have installed. They are
> > working if I login to the local machine. If I try and run remote I get
> > segfaults even with vglrun.  However if I use LD_LIBRARY_PATH I get
> > glxgears to show up on my remote display but it is very slow. I'm
> > assuming I have something setup wrong in my virtualgl setup but I can't
> > find what is wrong.
> > 
> > Thanks in advance for your help
> > Nate
> > 
> > 
> > vis:~ # ldd `which glxgears`
> > 
> >         linux-vdso.so.1 =>  (0x00007ffff11ff000)
> >         libGL.so.1 => /usr/X11R6/lib64/libGL.so.1 (0x00007faee8d66000)
> >         libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007faee8b54000)
> >         libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007faee8817000)
> >         libpthread.so.0 => /lib64/libpthread.so.0 (0x00007faee85fb000)
> >         libm.so.6 => /lib64/libm.so.6 (0x00007faee83a5000)
> >         libc.so.6 => /lib64/libc.so.6 (0x00007faee804c000)
> >         libatiuki.so.1 => /usr/lib64/libatiuki.so.1 (0x00007faee901b000)
> >         libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007faee7e48000)
> >         libxcb-xlib.so.0 => /usr/lib64/libxcb-xlib.so.0
> >         (0x00007faee7c46000) libxcb.so.1 => /usr/lib64/libxcb.so.1
> >         (0x00007faee7a2a000) libdl.so.2 => /lib64/libdl.so.2
> >         (0x00007faee7826000)
> >         /lib64/ld-linux-x86-64.so.2 (0x00007faee8f3d000)
> > 
> > vis:~ # LD_LIBRARY_PATH=/usr/lib64/ ldd `which glxgears`
> > 
> >         linux-vdso.so.1 =>  (0x00007fffdedfe000)
> >         libGL.so.1 => /usr/lib64/libGL.so.1 (0x00007fe0d6920000)
> >         libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007fe0d670e000)
> >         libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007fe0d63d1000)
> >         libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fe0d61b5000)
> >         libm.so.6 => /lib64/libm.so.6 (0x00007fe0d5f5f000)
> >         libc.so.6 => /lib64/libc.so.6 (0x00007fe0d5c06000)
> >         libXxf86vm.so.1 => /usr/lib64/libXxf86vm.so.1
> >         (0x00007fe0d5a00000) libXdamage.so.1 =>
> >         /usr/lib64/libXdamage.so.1 (0x00007fe0d57fd000) libXfixes.so.3
> >         => /usr/lib64/libXfixes.so.3 (0x00007fe0d55f7000) libdrm.so.2 =>
> >         /usr/lib64/libdrm.so.2 (0x00007fe0d53ee000) libdl.so.2 =>
> >         /lib64/libdl.so.2 (0x00007fe0d51ea000)
> >         libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007fe0d4fe6000)
> >         libxcb-xlib.so.0 => /usr/lib64/libxcb-xlib.so.0
> >         (0x00007fe0d4de4000) libxcb.so.1 => /usr/lib64/libxcb.so.1
> >         (0x00007fe0d4bc8000) /lib64/ld-linux-x86-64.so.2
> >         (0x00007fe0d6ba0000)
> > 
> > vis:~ # glxgears
> > Segmentation fault
> > vis:~ # DISPLAY=:0 glxgears
> > 24945 frames in 5.0 seconds = 4988.860 FPS
> > 24991 frames in 5.0 seconds = 4998.089 FPS
> > ^C
> > vis:~ # LD_LIBRARY_PATH=/usr/lib64/ LIBGL_ALWAYS_INDIRECT=yes glxgears
> > 4712 frames in 5.0 seconds = 941.746 FPS
> > 4301 frames in 5.0 seconds = 857.878 FPS
> > ^C
> > vis:~ # vglrun glxgears
> > Segmentation fault
> > vis:~ # LD_LIBRARY_PATH=/usr/lib64/ LIBGL_ALWAYS_INDIRECT=yes vglrun
> > glxgears [VGL] WARNING: The OpenGL rendering context obtained on X
> > display [VGL]    :0.0 is indirect, which may cause performance to
> > suffer. [VGL]    If :0.0 is a local X display, then the framebuffer
> > device [VGL]    permissions may be set incorrectly.
> > 1811 frames in 5.0 seconds = 362.189 FPS
> > 1824 frames in 5.0 seconds = 364.655 FPS
> > 
> > SLES11 system
> > with ATI 949e card.
> > 
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