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Guidelines
Troubleshooting screen flickering issue on HP notebooks: Click here to view the instructions!
Common problems for Battery
We would like to share some of the most frequently asked questions about: Battery Reports, Hold a charge, Test and Calibrating Battery . Check out this link: Is your notebook plugged in and not charging?
HP Recommended
Hp an1400au
Ubuntu LTS

I have a dual boot system windows and Ubuntu.

 

When I shutdown from Ubuntu (i make sure power indicator is off), there is buzzing sound in around touchpad area. And when I remove the battery, the buzzing sound is gone. (Im using Ubuntu 22.04 and kernel 5.19).

 

Then I try shut down from windows, there's no buzzing sound and work normally(without remove battery) 

 

What happens when I use Ubuntu not shutdown normally, any solutions? 

 

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