I have got the same problem and found out the reason after some intensive search: Something goes wrong with the process scheduling after suspend/wake, so the X server is not getting enough CPU cycles.
Running sudo chrt -r -p 20 [pid of X] solves the problem for me, while resetting with sudo chrt -o -p 0 [pid of X] restores the performance issues. BTW: I am having an ATI graphics card, so this seems to be completely independent from the model. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/676413 Title: Video playback performance drops substantially after suspend/wake cycle (Lenovo X201 i5 w/ Intel GMA HD) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/676413/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
