I used to have this problem, but it is solved. Check to that see that your screensaver is OFF. The screensaver, even if you tell it to display a "blank screen", will turn on the backlight. Silly, yes, but it is what it is. So if you have an LCD, turn the screensaver off.
In ubuntu: system->preferences-> uncheck "activate screensaver when computer id idle" Then, press "power management" on the bottom of the dialog. Here, check your setting for "Put display to sleep when inactive". This will turn off the backlight. -- Notebook monitor does not turn off when idle https://bugs.launchpad.net/bugs/202800 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
