I've set Htop as you said. Here is the new screenshot. Nothing is different. That's strange it's like the system thinks my computer just has a one core CPU.
** Attachment added: "Capture du 2014-05-21 00:34:10.png" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/657990/+attachment/4116486/+files/Capture%20du%202014-05-21%2000%3A34%3A10.png -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/657990 Title: System freeze when i'am not moving the mouse or typing. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/657990/+subscriptions _______________________________________________ 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