Adjusting Screen Brightness - Windows 8.1

Anonymous
2013-10-31T15:30:48+00:00

I recently updated my Windows 8 to an 8.1 and ever since then I can't change my screen's brightness. I have to restart my laptop (ASUS X401U) to make the adjustment appear. How do I fix this?

Windows for home | Previous Windows versions | Devices and drivers

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Anonymous
2013-11-06T05:18:38+00:00

What you both want to do is open control panel, search for "Update Device Drivers", open that, then under display adapters, double click on AMD Radeon HD 7340M. Go to the driver tab, click update driver, then  my computer for driver software. Then click Let me pick from a list of device drivers on m computer. Click on Graphics version 8.982.7.0 and hit next. The latest version 13 drivers don't work well for some reason on 8.1, but the old version 8 seems to be OK. I hope I was able to help and I hope Microsoft does something about this. If I had known about Windows 8.1 issues in advance, I would never have updated. I can't even open up my bloody metro apps.

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Anonymous
2015-05-29T21:22:17+00:00

I had the same problem, but fixed it. Go to control panel, system and security, power options. Click on your selected power plan "change plan settings".  Then to "change advanced power settings". Scroll down to display, then turn off adaptive brightness. Now restart your PC. Now you should be able to adjust brightness like normal.

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  1. Anonymous
    2013-12-12T01:11:17+00:00

    Hi, I had slightly different adapters, but followed the same principle and updated to 2012.  Hey presto it worked immediately - thank you.  Your not the first person I've heard say they wished they'd never upgraded to 8.1, my laptop's definitely not been working as well since upgrading. Thanks again

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  2. Anonymous
    2013-12-09T21:57:06+00:00

    I am having the same problem with Compaq nc6400 that I installed Windows 8.1 on.  The brightness seems to be stuck and the minimum level and I can't adjust it.  I tried the recommendation but the device manager reported that I have the most recent version of the driver.  Any suggestions?

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  3. Anonymous
    2013-12-08T11:51:18+00:00

    THANKS!! GREAT HELP :))))

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