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Specialist
Posts: 6
Registered: ‎06-05-2013
Message 1 of 6 (1,368 Views)

cannot adjust display brightness

I cannot adjust the display brightness on my VAIO laptop. I have changed the settings in Vaio Control and downloaded the Notebook driver, but I still cannot adjust the brightness manually.

Moderator
Posts: 1,279
Registered: ‎11-12-2012
Message 2 of 6 (1,364 Views)

Re: cannot adjust display brightness

Please provide your VAIO Model number and more details.  Did you change the operating system through an upgrade or downgrade?

Specialist
Posts: 6
Registered: ‎06-05-2013
Message 3 of 6 (1,361 Views)

Re: cannot adjust display brightness

Thank you.

 

The VAIO Model No. is VPCF2390X. Today I was having problems with my display (it was turning black, to go to sleep, when I was typing, I had to keep moving the mouse to be able to keep typing) and I called McAfee because I have service contract with them and I though it was a virus. The McAfee guy took care of the display going black issue, but right after that I started being unable to adjust the display/monitor brightness manually, (clicking F6 and Function key). I called McAfee back twice, but they couldn't help me and recommend me to call SONY. I called you and was told to contact this community (because my one year for service is up I cannot pay to extend the service plan yet). I noticed the McAfee guy disabled some drivers and uninstalled the NVIDIA GE Force.

Moderator
Posts: 1,279
Registered: ‎11-12-2012
Message 4 of 6 (1,324 Views)

Re: cannot adjust display brightness

Disabling drivers and uninstalling the Nvidia driver is definitely NOT the solution.

You did not mention that you upgraded or changed the Operating System so I will assume you're still running Windows 7. 

 

If the McAfee agent removed the video driver, please go here to reinstall the original factory version.

After you install the original video driver, you can then update the driver.

(The update i linked does in fact address some issues where the brightness FN keys do not work properly)

 

If you reinstall those two things and the screen still goes blank during active use, please let me know.


If installing and updating the graphics driver did not fix the brightness issue and your F+ F5 and F6 still don't work, then you should make sure the hotkey utility is installed and running. 

Rookie
Posts: 1
Registered: ‎10-22-2016
Message 5 of 6 (81 Views)

Re: cannot adjust display brightness

i am having thee same issue, my apply/cancel buttons grey out not allowing me to change manually. F +F6 is stuck in auto?

Moderator
Posts: 2,666
Registered: ‎01-16-2015
Message 6 of 6 (73 Views)

Re: cannot adjust display brightness

Hi Mgray62,

 

Welcome to Sony Community!

 

We're sorry to hear about this. May we know the model name and the current operating system of your computer? When was the last time that it work? Please make sure that the Vaio Control Center and hotkey utilities are upto date.

 

You may refer to this link for further assistance,

https://us.en.kb.sony.com/app/answers/detail/a_id/44471/kw/how%20to%20enable%20the%20auto%20brightne...

 

Regards,
Jen

 

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