I recently got a Sony Bravia HD TV but can't connect it to my Ubuntu laptop. I've a Dell with Intel GM965 Graphics. When I connect to the TV using an HDMI cable, it says:
Unsupported signal, check device output.
It is detected by Ubuntu just fine. I tried with different resolutions in the display settings but couldn't get it to work. Also, I couldn't find settings for refresh rate (I'm on 11.10).
The TV/Cable is fine as PS3 works perfectly well.