https://bugs.freedesktop.org/show_bug.cgi?id=42808
--- Comment #5 from Michel Dänzer michel@daenzer.net 2011-11-11 04:42:28 PST --- Then it sounds like your laptop is muxless, i.e. the Radeon GPU physically isn't connected to any display outputs. I'm afraid this won't be supported for a long time, as it requires a lot of infrastructural work to happen first. In the meantime, you'll have to use the integrated GPU with the intel drivers.