This bug affects quantal as well, 3.5.0-18 has the same symptom, and reverting the above commit from it (which was introduced in the 3.5.3 stable update) also fixes this specific machine.
** Tags added: quantal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070978 Title: eDP laptop screen does not come up until a suspend/resume cycle happens. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs