Power Management no longer allowing me to change display brightnes

Discussion in 'Windows Vista Performance' started by Shiroinohi, Apr 18, 2008.

  1. Shiroinohi

    Shiroinohi Guest

    I'm on a Toshiba Satellite that's worked fairly well except for a few
    self-repaired hiccups. However, about a week ago my power management plans
    suddenly stopped working. I can switch from different plans that change how
    quickly my display turns off, but my screen has been stuck at the lowest
    brightness possible for a while now. It has nothing to do with the plans
    themselves, I've restored all to their default settings and still no change
    in brightness when I switch between all of them. The little slider to adjust
    brightness simply does not appear anymore. I can't find what exactly it is
    that's malfunctioning to reinstall, as no power management driver appeared on
    my disk from Toshiba. Can anyone provide an explanation or perhaps a link to
    repair this?
     
    Shiroinohi, Apr 18, 2008
    #1
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  2. Shiroinohi

    t-4-2 Guest

    Hello, can you not just simply do a system restore, choosing a date
    prior to the problem(s) arose ?
     
    t-4-2, Apr 18, 2008
    #2
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  3. Shiroinohi

    Shiroinohi Guest

    No, unfortunately by the time I realized that a simple shut down and restart
    wouldn't solve the problem, my computer had overwritten the restore points
    before the problem happened.
     
    Shiroinohi, Apr 18, 2008
    #3
  4. Shiroinohi

    t-4-2 Guest

    Hello Shiroinohi
    You said the little slider that adjusts brightness is gone. Does tha
    mean if you were on Power Options window and you clicked Adjust Displa
    Brightness ( left panel), the next window that popped up would not hav
    the sliders shown ?
     
    t-4-2, Apr 18, 2008
    #4
  5. Shiroinohi

    Shiroinohi Guest

    Adjust Display Brightness no longer appears on the left hand menu. Before it
    did, but now I have no way of adjusting the brightness.
     
    Shiroinohi, Apr 18, 2008
    #5
  6. Shiroinohi

    t-4-2 Guest

    I'm out of idea, as I'm not a "geek", figure of speech. Just one wild
    guess, it happened after you installed the SP1 ? If so, I can only
    suggest ,and a lot of people will yell at me, perhaps you would consider
    un-installed it. It's like i-phone came out, why do we Have to have it
    ?? Your computer life was pretty stable before, isn't it ?
     
    t-4-2, Apr 18, 2008
    #6
  7. Shiroinohi

    Shiroinohi Guest

    It might have been SP1, though I don't really remember when I installed it.
    How would I go about uninstalling in order to check?
     
    Shiroinohi, Apr 18, 2008
    #7
  8. Shiroinohi

    t-4-2 Guest

    Hello Shiroinohi,
    If you "don't remember it", then you have NOT installed SP1. Sorry, I'm
    out of idea.
     
    t-4-2, Apr 18, 2008
    #8
  9. Shiroinohi

    moondawg Guest

    moondawg, Apr 19, 2008
    #9
  10. Shiroinohi

    Shiroinohi Guest

    Just uninstalled and reinstalled the package, and still no change, thanks
    though.
     
    Shiroinohi, Apr 19, 2008
    #10
  11. Shiroinohi

    t-4-2 Guest

    Hello Shiroinohi
    I'm not completely satisfied with your answer about restore point
    being "overwritten"
    Permit me to remind you that the system contains at least 14 days o
    activities, or about 20 #s of activities in my computer. It should b
    the same as yours. Are you sure you cannot find a "good" restore point
    All you have to do is click" Show restore points older than 5 days." Ho
    long since you have this problem
     
    t-4-2, Apr 19, 2008
    #11
  12. Shiroinohi

    RalfG Guest

    It should be but that's not necessarily true. For whatever reason at some
    point in time my system stopped keeping restore points older than 3-5 days.
    Each time it creates a new automatic restore point it drops the oldest
    point, even if there are only 4 restore points saved on the computer.
     
    RalfG, Apr 19, 2008
    #12
  13. Shiroinohi

    t-4-2 Guest

    Hello Ralfg,
    You might want to take a look at your OS C drive. Is it badly running
    out of space ?
     
    t-4-2, Apr 19, 2008
    #13
  14. Shiroinohi

    t-4-2 Guest

    Hello Shiroinohi,
    This is my lasr trump card. Control Panel >Classic View > Windows
    Mobility Centre >change you brightness there. If that does not work, I'm
    cooked!
     
    t-4-2, Apr 19, 2008
    #14
  15. Shiroinohi

    Shiroinohi Guest

    Adjusting brightness option does not appear.

     
    Shiroinohi, Apr 19, 2008
    #15
  16. Shiroinohi

    RalfG Guest

    No, there was lots of free space, around 20GB. I did try something today --
    removed several DVD images being stored on that drive. That freed up another
    12GB.
     
    RalfG, Apr 20, 2008
    #16
  17. Shiroinohi

    Bigboy Guest

    I have exactly the same probelm on my Toshiba Satellite - ever since I
    installed Vista, before SP1 in fact. There is no option 'Adjust Display
    Brightness' in Power Management not a tile to do so in Mobility Center. I
    have not found a fix for it but have found that when you do a Restart the
    system starts with full brightness. Keep the mains cable connected and full
    brightness is maintained when you next shut down and switch on again.
    Mystifying.....
     
    Bigboy, May 12, 2008
    #17
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