Windows 8 and 8.1 Forums


Win8.1 brightness change not working

  1. #1


    Posts : 20
    Wndows 8.1 64bit

    Win8.1 brightness change not working


    I'm having this strange issue that I noticed a few hours back ... for some reason when i change power plan from the taskbar batter icon, the screen brightness doesn't change, no idea why/what could trigger this as I've not updated the nvidia driver for a while now, not sure I think 6month + or so .. and it was all working fine.
    Also beadvised I haven't updated windows for a while ether ... so its probably not the fact that a win update caused this as I haven't updated for a while and last I check .. and once again about 6month or maybe 8months back .. it was working fine.
    Also if i right click on the batter icon "adjust screen brightness > the vertical scrollbar" .. when i move it left or right ... nothing happens.

    Strange thing is .. when I use the laptop on batter or there is power outage .. the screen brightness gets reduced as it should be.

    This thing really isn't effecting daily usages however as its an issue, I would like to get it fixed if possible, any ideas?

    System specs:
    --------------
    Asus X555LF
    Wndows 8.1 64bit
    Intel® Core™ i3 5010U Processor
    DDR3L 1600 MHz 8GB SDRAM
    NVIDIA® GeForce® 930M with 2GB DDR3 VRAM

    Thanks in advance.

      My System SpecsSystem Spec

  2. #2


    Posts : 20
    Wndows 8.1 64bit


    Also on another note probably the graphics drivers are working fine or atleast the nvidia one is .. as I can games like blade and soul etc just fine .. no visual issues or anything. Could it be that the intel driver or some other ms driver related to the display adapter got damaged somehow maybe
      My System SpecsSystem Spec

  3. #3


    Oh I don't know... maybe??

    Click image for larger version
      My System SpecsSystem Spec

  4. #4


    or if you have the intel display graphics..

    ??

    Click image for larger version
      My System SpecsSystem Spec

  5. #5


    Posts : 20
    Wndows 8.1 64bit


    will try that on the extended battery life topic, does enabling it have an impact on overall battery life?
      My System SpecsSystem Spec

  6. #6


    depends on your laptop quality of battery.. I have a kinda cheap battery.. (chinese made machine..) ha...

    I also came from using Apple macbook Pro - which the battery life was unbelievable.. lasted 6-8 hours no problem..

    my Windows PC Lenovo laptop might go 2-4 hours.. if that..


    I would have to dim the brightness big time and turn off wifi or even set power savings max.. and set my processor to only use 50% etc.. stuff like that to get even close to where apple had it .... i mean apple just figured out using more quality battery .. lithium ion whatever it is.. sorry not educated in the Battery department..
      My System SpecsSystem Spec

  7. #7


    Posts : 20
    Wndows 8.1 64bit


    Aha well still thanks but something strange happened, I just restarted the system lastnight and I was planning to do the settings modifications afterwards but it started working again ... weird and no issues now. I'm keep the post open for a bit while i monitor and see if it happens again.
      My System SpecsSystem Spec

Win8.1 brightness change not working
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