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Thread: Aspire backlight won't switch off with power saving options

  1. #1
    Join Date
    Oct 2010
    Beans
    4

    Unhappy Aspire backlight won't switch off with power saving options

    I'm having problems with my laptop backlight on my Acer Aspire 5100 running Ubuntu 32bit 10.10: The backlight won't switch off according to power management settings. The display goes black like it should, but the light stays on.

    Command "xset dpms force off" works just fine and the light turns off. So does Fn+F5 combination and closing the lid, but I want that light to turn off automatically like it did on win xp.


    I actually even tried and edited one of the screensavers to make it execute the command:

    /usr/share/applications/screensavers/glblur.desktop
    Code:
    [Desktop Entry]
    Name=glblur
    Exec=/usr/bin/xset dpms force off
    TryExec=/usr/bin/xset
    Comment=Turn off backlight
    StartupNotify=false
    Terminal=false
    Type=Application
    Categories=GNOME;Screensaver;
    OnlyShowIn=GNOME;
    ...and copied all this into /usr/share/applications/desktop.*_*.utf8.cache as well to make it update the settings.

    But this does not turn off the backlight when the screensaver delay has passed. Screen does slowly fade to black (like with all the screensavers) but the backlight stays on


    So,

    * How can I fix the power saving function so that it would also turn off the backlight?

    or

    * How could I set xset dpms force off to run when the computer has been idle for some time? cron?

    or

    * How can I make xset dpms force off work from a screensaver file?


    I'm getting really desperate with this..

  2. #2
    Join Date
    Oct 2010
    Beans
    4

    Re: Aspire backlight won't switch off with power saving options

    Exactly the same problem with 10.04 here:

    ..but so far my problem hasn't solved itself

  3. #3
    Join Date
    Sep 2007
    Location
    Cebu, Philippines
    Beans
    94
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: Aspire backlight won't switch off with power saving options

    same problem with my acer 3620 any ideas guys?

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