Reported by freedesktop/Intellinuxgraphics.org it is a known problem: http://intellinuxgraphics.org/2012.02.html
>Major known issues > > S4 suspend-resume may fail on some machines unless 'nomodeset' kernel > parameter is used (bug#35648, bug#40241) ... it seems there is a fix for it... see end of both bug comments. Please apply these patch onto xorg package... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1013038 Title: Suspend does not work reliably without nomodeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1013038/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs