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    M17x R2 8970M Brightness control?

    Discussion in 'Alienware 17 and M17x' started by Raidriar, Nov 13, 2017.

  1. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    I installed my Clevo 8970M into my M17x R2 tonight, and it is working with native fan control, but brightness is broken, stuck to max brightness. adjusting slider does nothing. any fix? Running windows 7

    Single 8970M bench with a 940XM
    https://www.3dmark.com/3dm11/12488143
     
    Last edited: Nov 13, 2017
    Raidriar, Nov 13, 2017
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  2. Danishblunt

    Danishblunt Guest

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    Did you try other drivers just to check?
     
    Danishblunt, Nov 14, 2017
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  3. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    You know, I went ahead and tried the past several re-live drivers, they all stuck my brightness at maximum. So i tried the final catalyst 2015 driver before they changed to crimson, and brightness works. Will do some investigating....
     
    Raidriar, Nov 14, 2017
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  4. goodstone

    goodstone Notebook Consultant

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    I remember this on my R2 when upgrading to windows 8. You need to change registry keys. Unfortunately I cannot remember which ones. I will try to hunt down .
     
    goodstone, Nov 25, 2017
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  5. goodstone

    goodstone Notebook Consultant

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    Found it. Try this might work.

    HKEY_LOCAL_MACHINE> SYSTEM> ControlSet001> Control> Class> {4d36e968-e325-11ce-bfc1-08002be10318}> 0000> KMD_EnableBrightnessInterface2 to 0

    Reboot!
     
    goodstone, Nov 25, 2017
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    TruenoG7 likes this.
  6. andrewff2

    andrewff2 Notebook Evangelist

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    Hey there man!!! I have one 8970m too and w10+amd driver are killing me.

    Did you find any native way to make the brightness work? or shoul i go to old drivers as well? do you recommend any old driver version???
     
    andrewff2, Feb 13, 2018
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  7. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Nope, never found a resolution with newer drivers.
     
    Raidriar, Feb 14, 2018
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  8. screemex

    screemex Newbie

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    Hi, i'm looking for working vbios 8970 non enduro for aw m17x r2. I have one but clocks stop at 450/300
     
    screemex, Sep 22, 2018
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  9. screemex

    screemex Newbie

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    Hello, I am looking for a working vbios to 8970. My problem is that the clocks freez at 450Mhz and the memory at 300Mhz
     
    screemex, Sep 22, 2018
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