https://bugs.freedesktop.org/show_bug.cgi?id=42373
--- Comment #9 from Kunal kunal.gangakhedkar@gmail.com 2011-11-07 10:06:41 UTC --- (In reply to comment #8)
Are you doing this under a virtual box ? If so it's not supported
No - this is my bare-metal machine booting. I use VirtualBox to boot into a server version of Ubuntu where I do my development work.
Besides, I thought VirtualBox emulated its own vga card - why would you see the radeon card inside a virtual machine?