I'm running 13.04 on an IBM machine with integrated intel graphics on a 1920x1080 monitor. When I boot up, the resolution is fine for a couple of seconds and then the screen goes black, and the display change to 1024x768 resolution. I am able to temporally fix the issue by just opening the display setting screen and (very stragely) the screen comes back to my 1920x1080 optimal resolution. I have to do this every time I boot up, lock the computer, or open some applications for the first time (ex. google chrome). I tried to install drivers for intel graphics, event though I read that they are already supported by ubuntu. I have a dual boot setup with Windows 7 and the problem only occur in Ubuntu.
Thanks alot for your help!