So... I have an Alienware M17X R4 and I've just installed Ubuntu. My main doubt is about the current graphic card I'm using. When I go to Additional Drivers, I see that there is no driver activated for my dedicated graphic card, which is AMD Radeon HD 7970. Does it mean that I'm using my integrated graphic card? Because I don't want to use my dedicated graphic card for Ubuntu, I want use my Intel Graphics HD 4000. Is there anyway for me to check which graphic card I'm currently using?
run this command in a terminal lspci It will display all your hardware look for "VGA compatable controller" near the bottom mine says nvidid so yours should say intel or AMD. Sorry couldent answer sooner live in uk had to go to bed.