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.
Adjusting Screen Brightness - Windows 8.1
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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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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Anonymous
2014-09-30T20:06:27+00:00 How do you adjust the screen's brightness? It's way too bright and causes everything to look washed out.
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Anonymous
2014-07-10T08:54:11+00:00 Hi Ardynbaia,
-What is the make and model number of the computer?
I would suggest you to download display drivers from computer manufacturer website and install it in Windows 7 compatibility mode.
http://windows.microsoft.com/en-US/windows-8/older-programs-compatible-version-windows
Keep us posted.
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Anonymous
2014-07-10T05:38:47+00:00 My screen so dark I can't even see the control panel.77