05-22-2016 10:35 PM
I have HP 15-ac 120tx laptop with windows 10 whis is i recently brought. On my laptop brightness keys (f2+f3) is working fine for few days, but suddenly its not working. I also try to changed the brightness from grpahics propertiy but its aslo not working (Apply button is disable). please give me any solution for this.
05-23-2016 05:52 PM
Thank you for visiting the HP Forums!
I understand that the brightness keys are not working on your HP 15-ac120tx Notebook. I would like to assist you with resolving this issue.
Have there been any recent Windows updates?
Any new software or hardware installed?
First, please perform a hard reset. Once that is complete follow the steps from this graphics document to resolve the issue:
I look forward to your reply! If this information is useful, click the thumbs up.
I work on behalf of HP