📎 AI Summary:
The original poster, MreR, reports that their Sony Vaio FN keys work properly in Windows 7 but malfunction after upgrading to Windows 8.1, particularly missing functionality for brightness and display settings. Responders suggest checking for updated drivers and clarify that FN key functions depend on specific motherboard or keyboard drivers rather than Windows itself. Overall, the discussion centers on troubleshooting FN key issues following an OS upgrade.
MreR

MreR

New Member
Joined
Sep 26, 2014
Messages
1
Thread Author #1
Hello guys. I'm new here.
I have problem with my Sony Vaio VPCEH3M1E FN keys.
On Win7 it works perfectly but when i upgrade to 8.1, my FN keys stopped working.
I can only use FN keys for mute, volume and NumLK / ScrLK.
What about brightness and Display change (Expand to second monitor etc.)?

BTW. Sorry for my bad english :X
 

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ussnorway

ussnorway

Windows Forum Team
Staff member
Joined
May 22, 2012
Messages
4,597
#3
Yes FN keys arn't part of Windows but the motherboard or keyboard drivers
 

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