Dell Inspiron Laptop Brightness Issue

Brad McAfee
Brad McAfee used Ask the Experts™
on
We have a Dell Inspiron 5570 with Windows 10 Home.  

We are unable to adjust the brightness through the control panel nor the settings.  The function keys appear not to work either.

I am let to believe there is some sort of power saving override or automatically adjust brightness option I have to turn off in order to manually adjust the brightness.
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Robert RComputer Service Technician
Commented:
I would restart your laptop to see if then you can adjust the brightness. If that does not resolve the issue it is possible that another application as you suspect maybe over riding the brightness options.
Business Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018
Commented:
Also, update BIOS, Chipset, Video and Power drivers on this machine.
Top Expert 2013

Commented:
is this a standalone  PC?
test if any work in safe mode  https://www.drivereasy.com/knowledge/how-to-enter-safe-mode-in-windows-10/
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Commented:
We have tried all of these without success.  The BIOS is up to date, the display driver is up to date, and Windows Update is showing no updates/Windows 10 is up to date.  Is this hopeless?
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
I suggest you contact Dell Support.  

Standard brightness controls with up to date drivers work fine on other computers.

One possibility, if you are willing, is to back up the computer and reinstall Windows.  Dell will likely suggest this to you.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
Unfortunately, this is not a "known" issue
Top Expert 2013

Commented:
you never answered me....

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