Function keys (Fn+F6 and F7) keys to adjust the screen brightness is not working

original title: Fn+F6 and F7  to adjust screen brightness not working

The Fn+F6 or F7 function has suddenly stopped working. It has been fine up until now but when i press them now nothing happens. I am using a toshiba laptop with windows xp, can provide any additional information if needed



Question Info

Last updated April 27, 2020 Views 1,126 Applies to:



1.      Were there any changes made in the Computer prior to this issue?


2.      What is the model number of the computer?

3.      Do any of the other function keys work as should?


Perform the steps mentioned below and check:


Step 1:  


Check if the issue still persists when the Computer is in clean boot state.

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7

Note: Make sure you put the computer back to Normal Startup once you are done by referring to Step 7 in the article.

Step 2:


I would suggest you to perform the steps mentioned below and check if it helps:

(Applies for all model of Toshiba laptops)



If the issue still persists I would suggest you to contact Toshiba for further assistance:


Let us know if it helps.

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