Yes, there is really an issue with the lid state. If cat /proc/acpi/button/lid/LID/state always returns: state: closed whether laptop is closed or open, you have an acpi bug...
But g-p-m NEVER does dpms on when lid state = closed. The bug is fixed in g-p-m 2.17.1, where you're able to set a gconf-key to make it work. -- g-p-m failing to use DPMS to power off display https://launchpad.net/bugs/34233 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
