Force video output on headless server
I have a server which runs headless most of the time which I'd like to have a desktop I can VNC into (I run xbmc) but since there aren't any displays connected most of the time, no desktop gets created at boot, so I can't VNC in or run xbmc.
Now in the past I've used the vesa driver, but I'd really like to be able to use the radeon driver (it's an AMD E-350 based system) so I can have accelerated graphics when I really do have a monitor connected.
All of that to say, can I force the radeon driver to always output over an interface (HDMI for example) even when there isn't anything connected? And if so, how?