Screen dims regardless of preference settings

Discussion in 'macOS' started by swindmill, Jan 18, 2006.

  1. swindmill macrumors 6502a

    swindmill

    Joined:
    Mar 17, 2005
    Location:
    KY
    #1
    For some time now, the screen of my rev d 12" PB has dimmed after a minute or so inactivity. It does this regardless of settings in the Energy Saver pane, and also regardless of whether it is plugged in or not. Is there a fix for this? It is really annoying.
     
  2. revisionA macrumors 6502

    Joined:
    May 27, 2005
    #2
    my 15 does that too... its unavoidable that when you arent using it and arent watching a dvd that it will dim slightly as the first cycle of the screensaver.
     
  3. Boelman macrumors regular

    Joined:
    Jul 15, 2004
    #3
    Check under energy saver in the prefs and see what it is set on
     
  4. swindmill thread starter macrumors 6502a

    swindmill

    Joined:
    Mar 17, 2005
    Location:
    KY
    #4
    I have done that, as I said above :)
     
  5. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #5
    Are you doing this in a high light environment?
     
  6. kjdenison macrumors 6502

    Joined:
    Jul 14, 2003
    Location:
    Chicago, IL
    #6
    I have had the same problem on my 20" Cinema display. I have replaced the backlight inverter 5 times now, and it fixes it for about 2 days, and then its dim again. I honestly don't understand, and no one will give me an answer.
     
  7. swindmill thread starter macrumors 6502a

    swindmill

    Joined:
    Mar 17, 2005
    Location:
    KY
    #7
    I use it under normal lighting conditions. How would this affect why the screen dims?
     
  8. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #8
    There is a light sensor in the AlPBs that auto-dims the screen in high-light situations. Try reducing the light i your area. Or maybe the sensor is busted. Or, and this happens to me, your left hand is hovering over the sensor causing interference.
     
  9. keysersoze macrumors 68000

    keysersoze

    Joined:
    Jan 6, 2004
    Location:
    NH
    #9
    5 Times?!?! :eek:
     
  10. Koodauw macrumors 68040

    Koodauw

    Joined:
    Nov 17, 2003
    Location:
    Madison
    #10
    The 12'' PB doesn't have this feature though, hence no backlit keyboard either.

    Mine does this as well. I don't think you can change this, its some sort of power savings. An annoyance I agree.
     
  11. Temujin macrumors 6502a

    Temujin

    Joined:
    Oct 1, 2005
    Location:
    Copenhagen
    #11
    You can change it.

    Energy saver/options/ deselect "Automatically reduce the brightness of the display before display sleep"

    seems to work on my 15" PB

    Tell me if it works
     
  12. swindmill thread starter macrumors 6502a

    swindmill

    Joined:
    Mar 17, 2005
    Location:
    KY
    #12
    No, that doesn't work. That is what confuses me, it seems like it should.
     
  13. ITASOR macrumors 601

    ITASOR

    Joined:
    Mar 20, 2005
    Location:
    Oneida, NY
    #13
    Hmm, if I uncheck the setting on my iBook, it works just as expected. That's really weird that it doesn't on the PB, though. :confused:
     
  14. Temujin macrumors 6502a

    Temujin

    Joined:
    Oct 1, 2005
    Location:
    Copenhagen
    #14
    Are you sure you selected the right profile when trying this? Battery / Power
     
  15. howesey macrumors 6502a

    Joined:
    Dec 3, 2005
    #15
    Same here on my iMac. It doesn't bother me though.
     
  16. bartelby macrumors Core

    Joined:
    Jun 16, 2004
    #16

    It actually brightens the screen in high-light situations.
     
  17. Jay42 macrumors 65816

    Jay42

    Joined:
    Jul 14, 2005
    #17
    I agree, doesn't seem to work for me either. One of my few gripes about my powerbook is the lack of options for power settings (can't save power settings as a new preset, can't change function of the power button, what happens when you close the lid, or this screen dimming thing.) The weird thing is that PC laptops do all this.

    Just to let everyone know, its not a problem with the display, its a power saving "feature."
     
  18. 7on macrumors 601

    7on

    Joined:
    Nov 9, 2003
    Location:
    Dress Rosa
    #18
    Are you guys using an external monitor? While I used the external my dimness seemed to be brokened (IE my computer ignored the setting whether or not it was plugged into the display). My external monitor recently broke and since then the preference has stuck.
     
  19. spencecb macrumors 6502a

    spencecb

    Joined:
    Nov 20, 2003
    #19
    I do believe you have stated this backward. The screen will brighten in high-light situations, because it would be quite hard to see the screen if it dimmed during high-light situations. The only time it auto-dims is when there is low light.

    But, as already stated, this would not be the case for this particular PowerBook, because it is a 12", hence no ambient light-sensor.
     
  20. Jay42 macrumors 65816

    Jay42

    Joined:
    Jul 14, 2005
    #20
    And this is still not the issue with the 15's and 17's. Even when the lighting conditions don't change, the screen still dims after a minute or two of inactivity because it is trying to save power. I don't know how to turn this off, and it can become quite annoying when you are watching something not in DVD Player or reading a long text file.
     
  21. Temujin macrumors 6502a

    Temujin

    Joined:
    Oct 1, 2005
    Location:
    Copenhagen
    #21
    Ok the setting works fine on my PB 15" DL. Anyone have the same PB and still have problems?
     
  22. live4ever macrumors 6502a

    Joined:
    Aug 13, 2003
    Location:
    Thunder Bay, ON
    #22
    If you create a new user account does it behave in the same way? It could be a preference file problem if it doesn't.
     
  23. swindmill thread starter macrumors 6502a

    swindmill

    Joined:
    Mar 17, 2005
    Location:
    KY
    #23
    I use an external monitor at home. It does not dim, only the PB screen does.

    What is the preference file for energy saver settings called? Maybe I'll just trash it and see if that helps.
     
  24. Applespider macrumors G4

    Applespider

    Joined:
    Jan 20, 2004
    Location:
    looking through rose-tinted spectacles...
    #24
    Just a thought since this caught me out a time or two.

    When you change your settings under Energy Saver (so that the screen doesn't dim), it changes your setting to Custom. I've found that if my Powerbook then goes to Battery and then back to Power Adaptor, then it doesn't always remember those settings. Or if I change it to Better Performance, I sometimes lose that 'screen doesn't dim' setting too

    The number of times I've sworn it was checked off but in actual fact, it had checked itself back on again, are numerous.
     
  25. howesey macrumors 6502a

    Joined:
    Dec 3, 2005
    #25
    A common feature of OS X - it has not enough options. Most users need these, but there are a few Mac users that will complain as the OS is becoming Windows like and is "impossible" to use. :rolleyes:
     

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