I have the same problem with a Samsung NC10 on Ubuntu 9.10. Xset -s off solved the problem for me, before screensaver timeout was set to 600 and now its 0.
-- Display goes black after 10 minutes idle despite "never" settings https://bugs.launchpad.net/bugs/460375 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