Romain, red CPU time is related to kernel. In htop you can press F2 and set display options as shown on the attached screenshot in order to get more details on kernel threads. (Press Esc to go back to process list.)
** Attachment added: "htop_setup.png" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/657990/+attachment/4115662/+files/htop_setup.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
