As suggested here: http://ubuntuforums.org/showpost.php?p=8334873&postcount=7 it's enough to comment out line containing a line (it's near the beginning):
Comment out the 9th line (the one that says "if [ `CheckPolicy` == 0 ]; then exit; fi") of /etc/acpi/lid.sh It should be easier now to identify the possible fix... -- Closing laptop lid doesn't cause the screen to go blank https://bugs.launchpad.net/bugs/449188 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs