Hi taotekno,

Welcome the Community.

Please update the Dell QuickSet driver using the link mentioned below:

http://dell.to/13w2bNn

Thanks & Regards
Manshu S
#iworkfordell

First of all, thank you for your answer. On the other hand, I don't know how it happened but my laptop fixed it by itself. Before i saw your answer, my computer had restart itself and then my screen brightness was darker. Then I checked my Fn+F4/F5 keys and they was working. Until that day, keys are still working and there is no any problem until that day. Next time, if this problem happen again, firstly I'll try your answer.

P.S: I know my grammar is bad :D

Hi,

I have Dell Inspiron 15R 5521 (i5/4GB/1TB/2GB GC) laptop. I was reinstall Windows 8 1 day ago. After instillation i can easily change display brightness using Fn+F4 and Fn+F5 or Setting (Right side snap)  but after install the Catalyst Control Center driver for AMD graphic card.
i unable to change the brightness of display using both way (Fn key or right snap setting).

At this time brightness is minimum at i want to change the brightness form minimum to maximum.

And i also download the Dell QuickSet driver but it's not work.

Hi Rahul Rankawat,

Would like to know the source you used to update the Catalyst Control Center driver for AMD graphic card. You may try to update the drivers from our Support Site.

Please ensure that Windows Update are up-to-date.  You may watch the video on how to perform Windows update:

http://www.youtube.com/watch?feature=player_embedded&v=4WbM1Wblq_U

Please reply with the findings.

I have inspiron 5521, I have the same problem that i cannot change my screen brightness, I read in another dell community thread that a person having this problem should uninstall ten reinstall intel hd4000 and amd graphics card drivers, i did so... But another problem occured, I succeeded in installing amd catalyst but when i try to install intel 4000hd driver i get an error message: "This computer doesnt meet the minimum requirements for this software".. I dont get whats gone wrong with it, will be great if someone helps me out

I have inspiron 5521, I have the same problem that i cannot change my screen brightness, I read in another dell community thread that a person having this problem should uninstall ten reinstall intel hd4000 and amd graphics card drivers, i did so... But another problem occured, I succeeded in installing amd catalyst but when i try to install intel 4000hd driver i get an error message: "This computer doesnt meet the minimum requirements for this software".. I dont get whats gone wrong with it, will be great if someone helps me out

Hi saad0307,

As your system is shipped with Switchable graphics, the Intel driver needs to be updated first followed by AMD driver. You may follow the steps below to update the graphics driver :

• Click on Start -> Control Panel -> Program and Features -> Uninstall a program
• Uninstall the AMD video driver first followed by Intel display driver and restart the computer when prompted.
• You may download the driver from Here -> Enter the service tag of your system ->  Select the operating system -> Expand Video category -> download/install the Intel graphics driver. Follow the onscreen instructions and restart the computer when prompted.
• Follow the above step again to install the AMD driver as well.

Hope this helps.

Hi, i have Dell 5521 15R i7 (8 GB + 1TB) , before there installed W8, but i change in window 7 Professional 64bit, after i have some problems, 

1= touchpad was not working: but alreadt solved

2= for brightness keys not working (FN ctrl F4 or F5) 

Please give me Best solution as soon as possible, i really headache from this problem, because my eyes-side effected .  

Hi tausif15,

it seems that Dell Quickset is missing from the computer. You may download and install it from the following link http://dell.to/19ZawhM -> choose the operating system -> expand Application -> download and install Dell Quickset Application.

Thanks for help me, i installed and after restart laptop and try, now keys is working, like if i pess FM + F4 , showing in small window , brightness is decreasing, when i pess FN+F5, then it going increase, but on screen nothing any change. keys are working but brightness not chaning on screen.