Z400: Adjusting the Brightness in Windows 8.1

For machine Z400/Z500 with and without touch as well as P500, this article will help for the issue with brightness control right after updating to Windows 8.1.

Dear After the installation of Windows 8.1, I had noticed  that the brightness of the laptop went down considerably low. Even by increasing or decreasing the brightness (F11 and F12) situation did not improve. The solution is a simple one. One just needs to re-install the graphic drivers and upgrade the Lenovo power management.Intel Video Driver for Windows 8.1(32-bit  or  64-bit)Nvidia Video Driver for Windows 8.1(32-bit  or  64-bit)Lenovo Power Management for Windows 8.1(32-bit, 64-bit) more vist .....raminfotech  

Similar Messages

  • Adjusting the Brightness in Windows 8.1 problem

    Hi Lenovo communityI updated my Bios and VGA Driver + Nvidia and now I can't adjusting the brightness I re-install the intl VGA driver "Failed"
    back to the original driver that one which come with the Laptop "Failed"I don't know what to do Lenovo Y50-70 / Win 8.1

    Hi Chadi,
    Welcome to the Forums   
    As per the query we understood that you are facing issue with adjusting the brightness in your Lenovo Y50-70 laptop.
    Try to reinstall the energy management and check fo the issue.
    Click here for the energy management.
    Also try to increase the brightness in the control panel ->display->adjust brightness and check for the issue.
    Hope this helps. Do post back if the issue persists!                                                   
    Best regards,                                                          
    Ashwin. S

  • I don't have any sound and can't adjust the brightness Macbook Pro Mid 2009 with Windows 7 64bit

    I installed Windows 7 Professional 64 bit in my Macbook Pro Mid 2009 using Bootcamp 5.1.2 and from the beginning the sound is not working and cant adjust the brightness either. Tried installing all the drivers that people recommended from Realtek, nVidia and nothing has help me fixed the problem. is there a way that i could fix those problems?

    Look in the Boot Camp system requirements located here: http://support.apple.com/kb/HT5634
    Find your computer model and year. I think you will find that you should be using version 4 of the Windows support software.
    MacBook Pro
    (13-inch, Mid 2009)
    4
    4
    DVD
    DVD
    DVD
    MacBook Pro
    (15-inch, 2.53 GHz, Mid 2009)
    4
    4
    DVD
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    MacBook Pro
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    4
    4
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    MacBook Pro
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  • Windows can not adjust the brightness on this display

    I have a Toshiba Satellite LX835-D3300 ( Serial #ZC119804Q )
    I want to brighten my display, but it tells me..... Windows can not adjust the brightness on this display.
    In my HELP section on my computer it tells me to...
    Tap or click PC and devices, then tap or click Display
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    Get the best display on your monitor - Microsoft Windows Help
    (If you don't want the screen brightness to change automatically, tap or click the Adjust my screen brightness automatically slider to turn it off.)
    Tap or click Apply.
    I do not have that.
    I notice that if I go to the side of my screen and then click on Devices, click on projects... "Second Screen" is showning
    I clicked on it and then I went and clicked on PC screen only and it is highlighted, but when I go back to it, it stills shows "Second Sreen"
    Please help me. What am I doing wrong 

    All-in-One LX835-D3300
    Downloads here.
    Have you upgraded to Windows 8.1? If so, did you follow these instructions?
       How to Update from Windows 8 to Windows 8.1
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  • How to adjust the brightness of an apple monitor from Windows 7?

    how to adjust the brightness of an apple monitor from Windows 7?

    In Windows 7 go to help display brightness or help power saving.

  • HT4293 I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

    I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

    Have you plugged the USB cable into the computer also as the brightness is controlled over USB. If this does not work, you would need the Apple Display Driver for the version of Windows that you are using. The display driver is part of BootCamp software that you may be able to find online

  • I upgraded to windows 8.1 on my lenovo laptop and lost the function to adjust the brightness

    i upgraded to windows 8.1 and i cant adjust the brightness on my laptop at all and

    check this FAQ
    maybe this laptop didn't ready yet for Windows 8.1
    http://download.lenovo.com/lenovo/content/windows8-1/upgrade/ideapad/index_en.html

  • Lenovo G50-30 Can't adjust the brightness

    HI 
    recently i bought a lenovo G50-30 laptop with windows 8.1(64-bit)
    the performance was low and i downgraded it to windows 7 professional (32-bit) which improved the performance drastically,
    Now when ever i try to install the vga driver i get this message saying "this computer does not have the minimum requirements for installing
    this software",and also i cant adjust the brightness
    Did i do anything wrong,does anyone know what to do
    please
    Thanks

    sorry for the late reply, here's the things you can try , try rolling back the driver or you can access the registry to adjust some values here's the step:
    1- install latest driver of your graphic card
    2- This step will fix the problem:
    3 go to registery by regedit and change the value to 0xf048
    [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000]
    "FeatureTestControl"=dword:0000f048
     OR
    [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0001]
    "FeatureTestControl"=dword:0000f048
    Dont fake the funk............

  • How do you adjust the brightness on a Thunderbolt Display

    How do you adjust the brightness of a Thunderbolt Display attached to an iMac ?

    I had this peculiar ‘issue’ hooking up to my MacBook Retina when my Thunderbolt Display was delivered but Applecare  - thanks Andrew - got me there. It seems daft!
    The Thunderbolt Display Brightness slider IS there – you just have to know how to make it show up.
    At initial set-up of the Thunderbolt Display [or if the Brightness slider is ever not visible in the System Preferences> Thunderbolt Display window], so long as the Thunderbolt [external] Display and the Macbook Display are ‘mirrored’ I can control the Thunderbolt [external] Display via my MacBook Retina Brightness keys [F1 & F2] – or by the Brightness slider that THEN appears in my System Preferences>Thunderbolt Display window. Once set up the Thunderbolt Display System Preferences Window continues to show the Brightness slider but I occasionally lose it if my MacBook has been disconnected from the Thunderbolt Display for some time – and I then have to start over.
    So:-
    Apple menu >
    System Preferences>
    Displays>
    Click Arrangement [at the top]
    Click Mirror Displays [at the lower left]
    That then gives me-at-least a Brightness slider on the System Preferences> Thunderbolt Display window [as well as on the Built In Retina Display window] and I can then adjust them independently.
    Oddly, having set this up just once the Brightness slider then remains on my Thurnderbolt Display and I can control it [and my MacBook Retina Display independently]. Occasionally I lose it again and have to start over.
    Hope this works for others.

  • Problem in adjusting the brightness manually

    Hi, 
    I have purchased HP Pavilion 15-n205TX with win 8.1 recently.
    I have problem in adjusting the brightness of my screen. When i do it manually by pressing the keys f2 and f3, there is no change in the brightness of the sreen. 
    Even when i try to change it from Settings-Brightness, there is no change in the brightness 
    This question was solved.
    View Solution.

    Hi AG_8055,
    Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Pavilion 15-n205tx Notebook and brightness not working correctly.  You could try a refresh on Windows 8 stops anything that has not closed correctly. You could try a BIOS update. The HP Support Assistant will help you install the drivers and software for your machine. It will locate the correct driver update for the brightness. Here is a link download  the HP Support Assistant if you need it.
    Hope this helps you out.
    Thanks.
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

  • How do i adjust the brightness on my screen? it's dim like when the power cord is out.

    After my wife had the laptop out of the house today, I plugged it back in and the screen brightness is very dim...like what it looks like when the power cord is not in...usually, when I plug the cord back in, the screen becomes brighter...that has stopped. Any ideas to fix?
    thanks.

    Hi,
    Here are some common ways to adjust the brightness.
    Open windows Control Panel, open Windows Mobility Centre and adjust the brightness here.
    On a lot of notebooks, tapping f3 will often increase the brightness ( with f2 reducing it ).
    Open windows Control Panel, open Power Options, click Change Plan Settings next to your selected power plan and you can adjust the brightness here.
    Regards,
    DP-K
    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
    Microsoft MVP - Windows Experience

  • When I use the "snapshot tool" some images are very light. how can I adjust the brightness....

    I have windows 7 and Acrobat X Pro.
    When I use the snapshot tool I cannot figure out how to adjust the brightness on that image? On my old computer a picture tollbar would pop up. A lot of images are very light and I need to darken them.

    My not be much you can do. However, I would just clip them into my favorite image tool (in my case IrfanView) and adjust there.

  • Not able to adjust screen brightness in Windows 8.1

    hi,
    I m using HP Pavillion N208TX with windows 8.1 64 bit version. i m not able to adjust screen brightness from f2 and f3 button and from the power setting also. when i press these buttons it shows the slider to adjust the brightness on top left corner of the screen but its does not adjust the brightness from low to high. i have already updated the Intel HD Graphic driver sent via link from HP Cust. care. kindly help me on this ASAP...
    This question was solved.
    View Solution.

    Dear Customer,
    Welcome to HP Support Forum and we are glad to assist you.
    It looks like you are trying "Adjust Screen Brightness in Windows 8.1" for your Notebook.
    We will surely assist you with this.
    Please perform this step as shown below to resolve the issue:
    1. Go to Search  (point at upper right corner) and type Device Manager.  Go there.
    2. Expand Display Adapters
    3. Right-click Intel(R) HD Graphics and Left-click Disable
    4. Restart your computer
    Note: Your screen resolution might be distorted now, you can just ignore
    5. Go back to Device Manager, Display Adapters
    6. Right-click Intel(R) HD Graphics and Left-click Enable
    7. Restart again
    Note: If at any point your screen goes blank and won't come back, just HOLD DOWN your power button until
    the computer shuts down.  Then press power again to start up
    Hope this helps, for any further queries reply to the post and feel free to join us again
    "I work for Hewlett-Packard"
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    * * * * * Please mark Accept As Solution if it solves your problem * * * * *
    Regards,
    K N R K

  • How to adjust the brightness on Tecra 8100?

    hello there i'm using a tecra 8100 and I just cant find where to adjust the brightness which is really giving me problem. Please anyone help.

    > Since I install my Windows XP, I can't use my Fn button.
    @pardhi
    You have installed the OS manually and you didnt use the Toshiba recovery CD. Am I right??
    The fresh Microsoft OS does not contain the Toshiba drivers and therefore the drivers for the FN functions must be installed additionally.
    The problem is that you will not find any drivers for the Windows XP for the Tecra 8100.
    The WinXP drivers are not available and therefore you cannot use the FN keys

  • Cannot Adjust Screen Brightness after Windows 8.1 Update

    Cannot Adjust Screen Brightness after Windows 8.1 Update....i am using sony vaio laptop....i recently updated windows 8 to 8.1

    Hi:
    Most likely you need to install the graphics driver for W8.1 from your PC's support and driver page.

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