Is the pc turned on with connect with projector, and is the tv enabled in the settings to accept these connections?
Give more detail on what you tried...
TV is connected to notebook and settings are fine, whenever my xbox is connected the TV automatically recognises it.
I was having that problem. I think the trick is to have the TV turned on and set to the correct input and waiting when you boot up the computer. Otherwise the chip does not recognize that the HDMI cable is connected.
On my Samsung TV LN40C500 I have to set the TV to the source to see it.
Probably this workaround may work for you
Control panel -> System -> Device Manager -> Display Adapter -> Right Click on The Intel HD Graphics -> Disable Device
Control panel -> System -> Device Manager -> Display Adapter -> Right Click on The Intel HD Graphics -> Enable Device
This starts up my HDMI connection for the HD 2000 chipset.