Hello I am very new to ubuntu but jumped all in on it. I have a hp pavilion dv7 which was having some issues with windows 7 so I decided to put ubuntu 12.04 on here. I now cannot use my hdmi port on the pc and also if I try to make a video full screen it lags really bad on the video but you can hear the audio perfectly fine. I really need some help I read that I may need a proprietary driver but it has been so long since I have dealt with the video card in this laptop I have forgotten which one is in here. Is this something I can find out through the terminal? And once I find this out how do I install a proprietary driver?