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em100
What's DOS?
Posts: 1
Registered: ‎12-31-2014
Views: 1,545
Message 51 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Hello.

\

My Lenovo ideapad p500 was having the same exact problem. I tried countless methods of fixing my brightness and yet nothing seemed to work. I came across this forum with little hope. I fixed the drivers and whala (? spelling??? Smiley LOL) It fixed it! Thank you so much because I probably would have restored my computer if nothing worked.

 

 

Thanks Again,

Emily

dgaitor
What's DOS?
Posts: 2
Registered: ‎08-05-2014
Location: United States
Views: 1,478
Message 52 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

What method did you use to fix it?

Sirocco
What's DOS?
Posts: 3
Registered: ‎09-22-2014
Location: United Kingdom
Views: 1,474
Message 53 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

The solution came with waiting and an NVIDIA update. Sorry I know this
doesn't help Smiley Sad

dwilliams48
What's DOS?
Posts: 1
Registered: ‎01-22-2015
Location: Oklahoma
Views: 1,426
Message 54 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Im using a Lenovo thinkpad W540. After the windows 8.1 update I cannot adjust the screen brightness without going through the Intel HD graphics application. I have installed the most recent drivers for both Intel and NVIDIA using the auto update software provided on their sites as well as all updates availible from the solution center. Still no luck. Any other suggestions?

Karla_C
Blue Screen Again
Posts: 2
Registered: ‎02-02-2015
Location: Philippines
Views: 1,359
Message 55 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Good day. I followed all the instructions and installed drivers this year. The brightness of my laptop still can't be adjusted. It's still dim. What can I do then? Thank you.

Karla_C
Blue Screen Again
Posts: 2
Registered: ‎02-02-2015
Location: Philippines
Views: 1,354
Message 56 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

Mahesh123
What's DOS?
Posts: 2
Registered: ‎04-01-2015
Location: India
Views: 1,168
Message 57 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

I had faced the same brightness issue today in PS500 Touch Idea pad - Windows 8.1 after pressing the F11 Key. After, that i could not able to increase / decrease the brightness via F12 and Control panel - Appearance - Display settings. Finally, installed the Intel Video Driver for Windows 8.1 (First One) alone. Though its lower version comparing to existing one, it pop-ups with the confirmation screen after installation to replace with the old version, i just accepted it. Now, i could adjust the brightness and its working fine.

Great! Thanks Shiva Kumar.
katiehoward
What's DOS?
Posts: 2
Registered: ‎04-14-2015
Location: Lawrenceburg
Views: 1,123
Message 58 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z400

I only installed step one Intel video driver and my brightness has been restored. Thank you!

pamarthisravan
What's DOS?
Posts: 1
Registered: ‎06-18-2015
Location: eluru
Views: 972
Message 59 of 65

Re: Can't adjust brightness in Windows 8.1 for IdeaPad Z50

although i have tried what you have given the links.but after installing , it was saying like your pc do not have the minimum requirements and another one,couldnt be installed

vinu648
What's DOS?
Posts: 3
Registered: ‎06-22-2015
Location: India
Views: 959
Message 60 of 65

My wifi driver is not working in windows 8 pro 64bit

My wifi driver is not working in windows 8 pro 64bit , it is showing no device detected please help me.

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