Sony Bravia Unsupported signal. Check your Device Output?

I have an issue connecting my Lenovo Notebook to my SOny Bravia TV via the HDMI cable. Everything was working fine until yesterday, when i started getting a black screen with the message "Unsupported signal. Check your Device Output"
I have 2 more Notebooks at home, both working fine. Both have the same resolution, frequency, etc. Settings.

Does anyone have an idea what's the issue here?

Dimitar

If you've been plugging an unplugging the cable with the TV and the laptop both turned on at the time you've probably blown the HDMI output on the offending laptop. Contrary to what many think HDMI is not "hot pluggable"!

Crim Liar