I can reliably reproduce this problem by suspending once after a clean boot (HP DM4 laptop, Intel i915 video). Neelance's chrt workaround appears to fix the problem for me, but I did not wait to see if the problem reappeared. This solution from the forums (taking all but CPU0 offline before suspending, and bringing them back on resume) seems to work fine as well:
http://ubuntuforums.org/showpost.php?p=10639921&postcount=10 -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
