screen brightness problem in inspiron 3521

Hi Neroz,

I would suggest you to uninstall the video card drivers on the system. Please follow the steps mentioned below to uninstall the video card.

Click on Start button.Start typing devmgmt.msc and then press enter.Select the both graphics card device under display adapters and right click on itNow select properties.In the properties window, under Driver tab, click on Uninstall button.Check “Delete the driver software for this device.”You want to delete the driver click OK.Restart the system and check if the brightness key work.

After the uninstall finishes restart the system. Then reinstall the video card driver on the system for issue resolution. Please enter your service tag # on the link below, select the OS, then download the video card driver from Video section onto the system and install it.

http://dell.to/ZaQuel

Please let me know if this helps.

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