15 - ac122TU: unable to set the brightness of the screen

While I try to adjust the brightness of my screen, make mistake as "Windows cannot adjust the brightness of the display.

Please help me to do so.

Here is a link that will help you. Go to your power options.
Select balance, then click on change plan settings. Click on change advanced power settings. Then save changes.

You can try to use the Windows Update Troubleshooter to fix updates that do not come through Windows 8.  Please restart the laptop twice to make sure that all updates are completed!

You can also try:

In Device Manager, click the arrow next to display adapters to expand this category
Right-click on the graph, and then select Update driver software if more than 1 graphic adapter do 1 at a time.
Select search automatically for updated driver software.

The laptop must find and automatically install the updated driver
Once the installation is complete, restart your laptop.

Hope this helps, for other queries in response to the post and feel free to join us again

* Click on Thumbs Up white on the left to say thank you *.

Make it easier for others to find solutions by checking a response "Accept as Solution" if it solves your problem.

Thank you

K N R K

Although I am an employee of HP, I speak for myself and not for HP

Tags: Notebooks

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