Do you have a integrated graphic card right? because Xorg.log said "please increase your videoram memory..." , if is possible that you can increase video memory and check again if this issue is still occurring?. Additionally you can try to remove or backup your Xorg.conf file and then reboot your computer, Ubuntu will create a new video configuration automatically.
** Package changed: ubuntu => xserver-xorg-video-intel (Ubuntu) ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- updating to 9.04 broke x-server https://bugs.launchpad.net/bugs/435131 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp