Sony Vaio E Series Brightness Not Changing

Hey guys, I've only recently noticed this, but the brightness on my Vaio is stuck.

FN+F5/6 does nothing at all.

Changing the slider on both Win+C - Settings - Brightness and also through the Control Panel display options both do nothing either.

Any suggestions how to get around this?

Thanks!

The drivers aren't installed so windows doesn't have control over it yet.

Here are two links that might help:

EDIT: No, wrong link ill post in a sec


EDIT#2

I can't find exact ones. here's a link. Put in your vaio info. Your model seems to be missing from the list.

Sony eSupport - Electronics - Select Your Model

It seems to have fixed itself at the moment, not entirely sure why though.

I used my laptop the other night to watch a film on my tv and it let me change the brightness then, and its also letting me change it after the fact.

But I'll still check out that link!

It has randomly stopped working again.

Yeah my vaio isn't on that list, any other suggestions?

ProtoType said:

The drivers aren't installed so windows doesn't have control over it yet.

Here are two links that might help:

EDIT: No, wrong link ill post in a sec


EDIT#2

I can't find exact ones. here's a link. Put in your vaio info. Your model seems to be missing from the list.

Sony eSupport - Electronics - Select Your Model

Click to expand...

prototype,

Can you tell me what the drivers name for fn+f5 and f6 is? I have the same problems after installed windows 8 back on last year, but didnt noticed until recently. just did a VAIO UPGRADE TOOL program and it didnt solve my problem.

my sony model is SVT13112FXS

Thanks