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    Lost Brightness Control AW15 R3

    Discussion in '2015+ Alienware 13 / 15 / 17' started by astec23, Apr 6, 2017.

  1. astec23

    astec23 Notebook Enthusiast

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    i need help guys. my laptop just wont adjust its brightness.
    most guides online told me to update my Monitor and Display Adapter drivers on my device manager. and still nothing works.
    here's some pics on the controls. i can use the OSD (Fn+F9/10) but still nothing happens
    i can set the brightness to 0/25/50/100% but nothing still happens

    http://imgur.com/RkD6cDi

    http://imgur.com/XOa8bW6

    http://imgur.com/Y4TUug6
     
    astec23, Apr 6, 2017
    #1
  2. Rannochuk

    Rannochuk Notebook Enthusiast

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    Long shot but do you have LogMeIn installed?
     
    Rannochuk, Apr 10, 2017
    #2
  3. Snakeshadeus

    Snakeshadeus Notebook Enthusiast

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    I found that I also lose brightness control when running on the very latest nvidia driver (381.65), I managed to regain my brightness control by going back to 378.92 drivers, or the latest ones from Dell.

    I don't know if it matters but my exact process was uninstalling everything nvidia, restarting, uninstalling Intel Graphics Driver, restarting, installing Intel Graphics Driver, restarting, installing nvidia driver 378.92 (using "Custom" install and checking the "Clean Install" box), and it works now. Hope it works for you, I was very relieved that I didn't have to reinstall Windows 10 like I saw suggested on reddit.
     
    Snakeshadeus, Apr 10, 2017
    #3
    Vasudev likes this.
  4. BigBoss5090

    BigBoss5090 Notebook Geek

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    I did a clean install and just used the drivers in the Dell Website
     
    BigBoss5090, Apr 10, 2017
    #4