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Inspiron 15R n5110 brightness control not working after upgrading to Windows 8.1 (x64)
My Inspiron 15R n5110 laptop is 2-3 years old and it came with windows 7 installed. I installed Windows 8 after that. But when I upgraded to Windows 8.1, within few days I noticed I can't control brightness with Fn keys but other Fn keys work fine. What can I do to solve this problem?
arthurafs
1 Message
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September 20th, 2015 16:00
I hope this help others. My problem was related to Display being deactivated on Devices Manager. Once I activated the Generic PnP Display the problem was solved.
Dell-Mohammed S
365 Posts
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June 29th, 2014 04:00
Hi Nafis Abdullah Khan,
Welcome to community.
You can adjust the brightness using Windows Mobility Center. Here are the steps.
Open Windows Mobility Center to change the settings for display brightness:
Do you use ‘F4’ and ‘F5’ keys when you play the game? Based on my research, (this is considered as normal behavior) it can be a behavior of the game that you play on your computer.
Since your system comes with switchable graphics option, so there is a possibility that when you play the game, it uses GeForce GT 525M graphics card and when you use Alt+Tab to comes out of the game, it uses Intel graphics card.
Please reply if you have any questions.
Nafis Abdullah
4 Posts
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June 29th, 2014 05:00
Hi,
Thanks a lot for your reply. I tried with mobility center. I can move the slider but the brightness doesn't change. I remember I tried that before and the effect can be seen after restarting, not instantly. Not only in game but I can't also change brightness from desktop in any way, neither from mobility center nor windows settings, nor by holding Fn key and F4 / F5 togather. Other Function keys work just fine. For example, to change sound volume, I can use Fn + F11 or Fn + F12, etc. with no problem. I have QuickSet version A02 installed, which is an upgraded version than the link you provided. Do you suggest to try reinstalling it to A01 version?
Regards
Dell-Mohammed S
365 Posts
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June 29th, 2014 06:00
Hi Nafis Abdullah Khan,
You may trying installing Quickset version A01. But did the issue occur after windows upgrade? Were you able to control brightness through functions keys when windows 7 was installed?
It may be due to windows upgrade. Do let us know we will further look in to this for you.
ejn63
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87.5K Posts
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June 29th, 2014 08:00
Though windows 8 is supported on the n5110, Windows 8.1 is not.
http://www.dell.com/support/troubleshooting/us/en/19/KCS/KcsArticles/ArticleView?c=&l=&s=&docid=575111
Nafis Abdullah
4 Posts
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June 29th, 2014 09:00
Hello again,
OK, I'll try installing the A01 version although may be I've tried that one before too, i do not remember. And yes, it happened after upgrading to windows 8.1. It was OK with windows 8 and Windows 7 both. I am not sure if it's because of any particular update after installing windows 8.1 but it started not working after upgrading to Windows 8.1.
Dell-Mohammed S
365 Posts
0
July 1st, 2014 23:00
Hi Nafis Abdullah Khan,
Quickset driver is only compatible for windows 8 right now. If you want to continue using Win 8.1 then Fn keys will not respond. Else you can downgrade to Win 8 for Fn key to work again.
Wiknix
11 Posts
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July 2nd, 2014 00:00
After Windows 8.1 upgraded adjust screen brightness not working. So follow simple steps to solve screen brightness problem in Windows 8.1.
Solved: Brightness Not Working In Windows 8.1
nuraminmanik
1 Message
0
August 29th, 2015 21:00
my inspiron N5110 laptop is 2 years old and it came with windows 7. I installed a new windows 7 ultimate.but I can not controll my brightness with Fn keys..what can I do to solve this problem?
joe421
1 Message
0
January 8th, 2016 20:00
Thank you. This problem started today on my Inspiron 15 laptop. My device manager already contained a Generic PnP Monitor, so I right-clicked it and uninstalled it, and then I reinstalled it. And, the brightness keys work again. :-)