I am using ubuntu 11.10 fresh install and I am having problems making the second screen to work, I remember before I was able to do it by extending the desktop to a larger number like 3840 X 1080 but since I am new I completely forgot how to do it, Now I have a philips 230 E monitor full 1920 X 1080 and a Toshiba tv HDMI and I want to activate the second monitor to be able to use Xinerama but I don't know how to go about this, I want to keep the Phillips as a primary monitor since it's the smaller one and use the TV from time to time to play videos movies and presentations. I installed all the additional drivers and don't know what else to do. I would prefer if I can use a list of exact commands to copy and paste onto the terminal since that is all I know how to use LOL . Thank you so much for your help. If you need more details of my mother board or video card or cpu just ask thank you.

Luis