Computer HDMI to TV connection problem

[ntina111]

i have a problem with my hdmi cable...or not...for a year now everything was ok...the connection between tv and my pc was working perfect....and now for some reason when i connect my laptop(packard bell limited edition) with the tv(LG) the tv recognize that something has connect with the HDIM and the pc too but when i put it,it doesnt transfer image.i have sound but it says that it hasnt signal....what can i do????the cable i think its ok cause when i put it to ps3 everything its good.what can i do to know if the problem is on my HDMI port?????please help me.Hello,

 

[kirkleyy]

Do you have your PC "connected to projector"? Usually, you have to go into control panel and connect to the external device. What edition of Windows are you running?