1. This problem still exists. 2. It appears that the origin of the problem is gnome-screensaver. By either inhibiting the screensaver (gnome-screensaver -i) or outright removing the gnome-screensaver package, this problem goes away. Why that is, I have no idea. Monitoring dbus after issuing 'xset dpms force off', a couple of screensaver related messages pop up:
method call sender=:1.10 -> dest=org.gnome.ScreenSaver serial=3223 path=/; interface=org.gnome.ScreenSaver; member=UnThrottle uint32 2035929630 and method call sender=:1.10 -> dest=org.gnome.ScreenSaver serial=3300 path=/; interface=org.gnome.ScreenSaver; member=Throttle string "Power screensaver" string "Display DPMS activated" Because the monitor is off I can't tell exactly when the messages arrive (and thus which message correlates to the backlight coming back on), but I would bet one of these points the way to the source of the problem. The documentation for Throttle/UnThrottle isn't exactly clear, but I would think a developer might be able to track down the issue, if they were so motivated. -- [Lucid] Laptop only remains DPMS off for 2 seconds https://bugs.launchpad.net/bugs/447728 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
