-EMETOO.

I found http://lists4.opensuse.org/opensuse-commit/2008-07/msg00160.html that
seems related.

Why is this low priority if this is a crasher bug ? Xvfb does not work at all.

Fedora doesn't build with GLX TLS support, it's not selinux-friendly.

This is working for me in 1.4.99.905-1.blah in updates-testing...

(In reply to comment #2)
> Fedora doesn't build with GLX TLS support, it's not selinux-friendly.
> 
> This is working for me in 1.4.99.905-1.blah in updates-testing...

Can you be more specific about what "blah" is?  The version number
(1.4.99.905-1) matches my presently installed package, and it does not work.

It is not clear from the above comments whether the solution lies in the mesa
driver or the Xvfb server. How can I get the required package(s) in order to get
this to work.

Here is what I have now:

xorg-x11-server-Xvfb-1.4.99.905-1.20080701.fc9.x86_64
mesa-dri-drivers-7.1-0.37.fc9.x86_64

Let me also second the last point in Comment #1 about the low priority
assignment on a broken utility.  For some people it can be and is a critical
component.

I too have 

xorg-x11-server-Xorg-1.4.99.905-1.20080701.fc9.x86_64
mesa-dri-drivers-7.1-0.37.fc9.x86_64

and when I try to run xvfb get the error
Xvfb: symbol lookup error: /usr/lib/dri/swrast_dri.so: undefined symbol: _glapi_add_dispatch

This is a high priority bug for me since xvfb does not work with no obvious fix. Please bump this to 
high priority

Thanks

It is not working in stable tree - so IMHO priority has to be set higher...

I resolved the problem by installing the initial xorg-x11-server-Xvfb FC9
package... 

Yep this worked for me also. Many thanks
(In reply to comment #5)
> It is not working in stable tree - so IMHO priority has to be set higher...
> 
> I resolved the problem by installing the initial xorg-x11-server-Xvfb FC9
> package... 

(In reply to comment #5)
> It is not working in stable tree - so IMHO priority has to be set higher...
> 
> I resolved the problem by installing the initial xorg-x11-server-Xvfb FC9
> package... 

My apologies if I am missing something obvious, but where can I get the
'initial' xorg-x11-server-Xvfb package?  The only fc9.x86_64 package that is
available from the mirrors is the broken version
xorg-x11-server-Xorg-1.4.99.905-1.20080701.fc9.x86_64 which is located in
updates.  Neither the original repository nor updates-testing (as mentioned in
comment #2) have a package called xorg-x11-server-Xvfb.

It can be downloaded from here
http://download.fedora.redhat.com/pub/fedora/linux/releases/9/Everything/i386/os/Packages/xorg-x11-server-Xvfb-1.4.99.901-29.20080415.fc9.i386.rpm
or here fore 64-bit version
http://download.fedora.redhat.com/pub/fedora/linux/releases/9/Everything/x86_64/os/Packages/xorg-x11-server-Xvfb-1.4.99.901-29.20080415.fc9.x86_64.rpm

This are the official release packages for F9
(In reply to comment #7)
> (In reply to comment #5)
> > It is not working in stable tree - so IMHO priority has to be set higher...
> > 
> > I resolved the problem by installing the initial xorg-x11-server-Xvfb FC9
> > package... 
> 
> My apologies if I am missing something obvious, but where can I get the
> 'initial' xorg-x11-server-Xvfb package?  The only fc9.x86_64 package that is
> available from the mirrors is the broken version
> xorg-x11-server-Xorg-1.4.99.905-1.20080701.fc9.x86_64 which is located in
> updates.  Neither the original repository nor updates-testing (as mentioned in
> comment #2) have a package called xorg-x11-server-Xvfb.

xorg-x11-server-1.4.99.906-1.fc9 has been submitted as an update for Fedora 9

xorg-x11-server-1.5.0-1.fc9 has been submitted as an update for Fedora 9.
http://admin.fedoraproject.org/updates/xorg-x11-server-1.5.0-1.fc9

xorg-x11-server-1.5.0-1.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.