Okay, i think i have a solution ! Actually, this morning xserver-xorg-video-intel have been upgraded and it have solved the problem.
But a few minutes ago i had a new plymouth upgrade that brought back the problem. So I tried to reinstall xserver-xorg-video-intel, and it solved the problem. I think that plymouth upgrades just break the xorg conf (or something like that), but an aptitude reinstall xserver-xorg-video-intel (or ati, or nv, etc.) can fix it :) -- Pressing <Enter> causes the system to freeze https://bugs.launchpad.net/bugs/516412 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs