Waht helped for me was upgrading to 12.04.2 with kernel 3.5 as described here
http://askubuntu.com/questions/279391/quantal-backported-kernel- in-12-04-2-whats-going-on-there -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1167669 Title: [Dell Inspiron 15 N5050] "Power Management Discrepancy" is displayed on wakeup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1167669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
