Possible Duplicate: What should I do when Ubuntu freezes? Ok I installed ubuntu 12.04 x64 on my Toshiba Satellite C655D (AMD e-300 APU / HD6310 graphics. 4GB ram) I dual boot it alongside ...
Possible Duplicate: How to calibrate the monitor on an Ubuntu system? I have purchased a new Toshiba Satellite C850-A812 laptop, with ATI Radeon HD 75xx series. When i first installed ...