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    Clevo N850HK1 brightness hotkey doesn't work (fn + f8, f9)

    Discussion in 'Sager and Clevo' started by Johnny212, Mar 3, 2018.

  1. Johnny212

    Johnny212 Notebook Enthusiast

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    Hello guys, I just buy a used clevo n850k1 laptop. But strangely I couldn't adjust the display brightness with the hotkey at all. I already tried 2 methods:
    1. disable display driver, then unistall monitor ....
    2. adding "KMD_EnableBrightnesslf2, ....... " to registry
    None of them works. I even reinstall the windows, still not work. I can only change the brightness through slider. The other hotkeys are working fine, just the hotkey for changing the brightness doesn't. I even tried the online key input test and f8 f9 working fine.
    I don't know what's wrong, I need your help.
     
    Last edited: Mar 3, 2018
    Johnny212, Mar 3, 2018
    #1
  2. mcgly023

    mcgly023 Newbie

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    i'm having the same issue with my clevo n850hp6 i just got from eluktronics
     
    mcgly023, Mar 4, 2018
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  3. blacklord049

    blacklord049 Notebook Enthusiast

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    I had a similar issue a few days ago and it was caused by the latest Intel HD drivers...
    What is your GPU model and driver version ?
     
    blacklord049, Mar 4, 2018
    #3
  4. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    Do you have the latest Clevo Control Center for your laptop model installed?

    This is the latest one for your laptop:

    Control Center AP to 5.0001.1.74

    Make sure you uninstall the old Control Center (AKA Hotkey DriveR) first, reboot, then install the new one, and reboot.

    TIP: When you download a file, Windows automatically places a BLOCKED status on the file. Right click on the ZIP file, go to Properties, then on the bottom right, check the box which says UNBLOCK then hit Apply.

    If you don't do this and unzip the file contents beforehand, then every single file for that driver has a BLOCKED status and may not install properly.
     
    Spartan@HIDevolution, Mar 4, 2018
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  5. Johnny212

    Johnny212 Notebook Enthusiast

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    HD 630, 1050ti. 23.20.16.4927, 391.01

    Yeah, I already clean install windows on new drive to test it. I had downloaded 3 version of control panel including the latest one. I'll report back.
     
    Johnny212, Mar 4, 2018
    #5
  6. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    Also, this is the latest Intel HD Graphics Driver: Intel Graphics Driver v23.20.16.4944
     
    Spartan@HIDevolution, Mar 4, 2018
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  7. mcgly023

    mcgly023 Newbie

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    me too
     
    mcgly023, Mar 4, 2018
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  8. Johnny212

    Johnny212 Notebook Enthusiast

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    Good news,I managed to found the problem. It wasn't the hotkey's driver fault, but the intel's graphic driver.
    I installed old version 21.20.16.4550 and the brightness hotkey works now.
     
    Last edited: Mar 4, 2018
    Johnny212, Mar 4, 2018
    #8
    Spartan@HIDevolution likes this.