According to http://ubuntuforums.org/showthread.php?t=2038250 xscreensaver's fading effect might be the cause of the darkened screen.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1015297 Title: Screen partially darkened after suspend and resume in Xubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/pm-utils/+bug/1015297/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
