Is this still a problem for you? There appear to be several reports of acpi_fakekey not working correctly anymore. Therefore I've created bug 217504 about this, but your issue seems a bit different, because it works in general, but then stops. Therefore I'm not marking it as duplicate, but maybe this gives some clue. Thank you.
-- g-p-m starts ignoring the sleep key after a while https://bugs.launchpad.net/bugs/179323 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs