New W520 cant adjust screen brightness!

Hello,
I am new to the forum and new to lenovo.
Just started setting up my brand new w520 and the Fn+Home/End keys dont work to control display brightness.
Any w520 owners having this problem as well?
edit note:- split from initial thread. change subject to reflect content.

@johnt7225,
Appreciate if you could try running TVSU and Windows Update to ensure all the drivers are installed.
Also is X-Rite a default software which comes with the W520? (I am unable to confirm this as I do not have a W520 to test on) ...
If X-Rite is the one acting up and causing the screen brightness adjustment to not work, I would need to escalate this to engineering.
Thanks Johnt725.
//JameZ
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Hi,
Have you tried the method above for test?
Generally speaking, this problem probably caused by Graphic driver problem, please check and make sure your Graphic driver is compatible with Windows 8.1.
In addition, also make sure your motherboard and chipset driver was upgraded to be latest.
If possible, also please upgrade your BIOS to be latest.one
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Cant adjust screen brightness

Hi there,
I cannot adjust my screen brightness after replacing my screen cuz I'd broken my screen. The followings are my computer details:
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Hi Advance23,
Thanks for your reponse I appreciate that.
Yes, i have just reinstalled Windows 7 64bits home premium on mt laptop (and I believe it's the latest version and with most present updates). After the installation, all the funtion keys are not working, e.g. Brightness adjustment/volumn adjustment etc.
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Cant adjust screen brightness after reinstalling windows_DV7-4080us

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Hi Advance23,
Thanks for your reponse I appreciate that.
Yes, i have just reinstalled Windows 7 64bits home premium on mt laptop (and I believe it's the latest version and with most present updates). After the installation, all the funtion keys are not working, e.g. Brightness adjustment/volumn adjustment etc.
I did some research before posting this post and followed the steps on "Resolving Problems with the Brightness of the Display" from HP website to try to fix this as well, however i did not have much luck.
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Solved!
Go to Solution.

I have the same problem with my L540. It started with the update of the BIOS to version 1.65. Because I didn't find a solution, I went back to BIOS version 1.64, where all the brightness options are there and work properly.
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Dear Customer,
Welcome to HP Support Forum and we are glad to assist you.
It looks like you are trying "Adjust Screen Brightness in Windows 8.1" for your Notebook.
We will surely assist you with this.
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Note: If at any point your screen goes blank and won't come back, just HOLD DOWN your power button until
the computer shuts down. Then press power again to start up
Hope this helps, for any further queries reply to the post and feel free to join us again
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Feature Change: Remove useless adjust screen brightness button.

Remove useless button for screen brightness.
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Oh - that explains it better.
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For you it might not make sense, but include ~1 billion more people, and I think they should just leave both.

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hi jackbeazley,
Welcome to Lenovo Community Forums!
Open Device Manager and open Display adater.
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AMD Video Driver
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Hope this helps
Cheers!
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c00lajay wrote:
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New W520 cant adjust screen brightness!

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