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Thread: PowerDevil (KDE 4.2): Unable to set screen brightness

  1. #1

    Default PowerDevil (KDE 4.2): Unable to set screen brightness

    An odd problem I'm experiencing in KDE 4.2 / openSUSE 11.1:

    When I create a new profile in PowerDevil (under Personal Settings > Advanced > PowerManagement), I'm unable to change the level of screen brightness. This is a bit annoying since it is always set automatically to only about 80% of screen brightness. (Also, I'm unable to adjust the level of existing profiles, but some of them like 'Performance' are set to 100%).

    However, I'm able to adjust the level manually either through the Battery Monitory Widget of through KRunner (although the latter only allows me to dim the screen, not raise the level).

    Is this a bug in PowerDevil?

  2. #2
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    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    Try deleting all powerdevil config files here

    .kde4/share/config

    logout and back in
    try setting it up again
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  3. #3

    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    Thanks for the tip, caf4926.

    I finally got around to this issue today and tried deleting all powerdevil files in .kde4/share/config. Unfortunately didn't help, I'm still stuck being unable to set the screen brightness. Will file a bug report.

    Cheers,

    homoludens

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    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    See here - Edit Profiles - Powersave


    Notice the tabs (though they don't look like tabs) lower section of the screen center/left. I just clicked 'Screen'
    You can move the brightness slider.

    Are you saying you don't have this or it just doesn't work?
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  5. #5

    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    No, no, I do have those tabs and the slider, it's just that I can't move it.

    Particularly annoying, as I described earlier, when you create a new profile: the screen brightness there is, for whatever reason, preset to only 80% of possible output, and I can't adjust it ...

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    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    You don't have powersave still installed do you?
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  7. #7

    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    No, that one is gone.

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    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    What do you see here:
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  9. #9

    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    These are my System Capabilities, as detected by PowerDevil:


    This, by the way, is a screenshot of the profile > screen settings window. Probably impossible to see, but the slider is stuck / can't be moved:


    PS: Thanks for the link to imagebam, very convenient website!

  10. #10
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    Default Re: PowerDevil (KDE 4.2): Unable to set screen brightness

    The slider is stuck in all profiles is it?

    Are you using the kde42' repo's?
    do:
    Code:
    kde4-config -v
    Have you tried a creating new user and see how it behaves there?
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