I have the same problem, and I have a feeling it might be related to the HD3000 driver. Did updating the BIOS improve things?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/998108 Title: x220 occasionally freezes when waking up from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/998108/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs