Michael Smith wrote:
> I would like to use XEN to install multiple operating systems on a
> single machine. I want to have netbsd -current for use as a router and
> ubuntu linux as a workstation. If I install ubuntu in an unprivileged
> domain can I give it access to the video card so that it can run X11?

AFAIK you can't access hardware directly with xen unless you have
hardware support for it.

A possible workaround might be an X client on dom0 and domU exporting
its display to it. Another possibility is vnc.
For audio you can use Esound (see the archives: Howto enable network
sound from domU to dom0?).

Hope this helps :)