CTRL-ALT-L or Fn+F2 does not turn off display backlight

[Martin Emrich]

Binary package hint: gnome-power-manager

After pressing CTRL-ALT-L (lock screen) or Fn+F2 (Which is the Thinkpad shortcut for "lock screen"), My screen goes black, and needs a password to unlock, just as expected. But the backlight stays on, which is both consuming battery and CCFL lifetime.

Is there a way to turn off the backlight, too?

ProblemType: Bug
Architecture: amd64
Date: Wed Sep 16 10:59:21 2009
DistroRelease: Ubuntu 9.10
Package: gnome-power-manager 2.27.92-0ubuntu1
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 LANGUAGE=de_DE.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
SourcePackage: gnome-power-manager
Uname: Linux 2.6.31-10-generic x86_64

[Martin Emrich (emme)]

Just tried it, it is still a problem in karmic. I noticed that g-p-m has nothing to do with it (running "gnome-screensaver-command --lock" has the same effect as hitting CTRL-ALT-L).

[Nigel Babu (nigelbabu)]

Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: https://bugzilla.gnome.org/show_bug.cgi?id=541717

[Micah Gersten (micahg)]

Moving to gnome-panel to match upstream bug.
Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: https://bugzilla.gnome.org/show_bug.cgi?id=541717
I'm going to mark it as Triaged and wait for upstream to work on this. Thanks for taking the time to make Ubuntu better! Please report any other issues you may find.

[Dražen Lučanin (kermit666)]

I don't know if the responsibility here has changed since the introduction of Unity, but I am still experiencing this bug using Ubuntu 12.10 on my Macbook Pro. The keyboard backlight and the Apple logo light also stay on, until my screen saver starts.