brightness

Question

brightness

Bea Bianca Unay 0

I can not adjust the brightness of my laptop, it's in full brightness and it hurts my eyes. please help me...........................................................

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2 answers

Your answer

Answer 1

Hi, the brightness problem is almost always caused by the graphics drivers.

1

The best option is to go to the support page for your laptop on the manufacturers website to download and reinstall (not update) the version of graphics drivers they provide.

2

If you have any difficulty locating that support page.

A

Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.

B

Right click your Start Button and open Device Manager.

Expand the 'Display Adapters' section.

Please provide a screenshot of that full Device Manager window.

Answer 2

Lower the brightness through Settings > System > Display; if that slider is missing or has no effect, repair the display driver through Device Manager.

1. Try the Windows brightness controls

Select Start > Settings > System > Display.
Under Brightness and color, move Change brightness to the left.
Alternatively, open Action Center from the right side of the taskbar and move its Brightness slider left.
You can also try the laptop’s brightness key, usually a sun symbol; some laptops require holding Fn while pressing it.

Windows 10 exposes the Action Center brightness slider starting with version 1903. Earlier versions use the slider under Display settings.^1^

If an external monitor is connected, Windows might not show a brightness slider for it. Use the monitor’s physical buttons and on-screen menu instead.^1^

2. Update the display driver

If the slider is absent or does nothing:

Right-click Start, then select Device Manager.
Expand Display adapters.
Right-click the listed graphics adapter and select Update driver.
Select Search automatically for updated driver software.
If offered, select Search for updated drivers on Windows Update.
Restart the laptop and test the brightness slider again.^2^

Also check the laptop manufacturer’s official support site for the graphics driver and any hotkey/function-key utility made for the exact laptop model. Avoid third-party driver-download sites.

3. If the problem began after an update

An administrator account is required to roll back a driver:

Open Device Manager > Display adapters.
Right-click the graphics adapter and select Properties.
Open the Driver tab.
Select Roll Back Driver, choose a reason, and confirm.
Restart the laptop.^2^

If Roll Back Driver is unavailable, skip this step.

4. Reinstall the display driver

If updating did not fix it:

Save your work and close applications.
Open Device Manager > Display adapters.
Right-click the graphics adapter and select Uninstall device.
Confirm Uninstall, but do not select any option to delete driver packages unless instructed by the laptop manufacturer.
Restart Windows. Windows will attempt to reinstall the display driver automatically.^2^

If brightness still cannot be changed, locate the laptop’s exact model using msinfo32, then obtain the compatible graphics and hotkey drivers from its manufacturer or contact the manufacturer for support.

References