HP Notebook 15 recognizing tv speakers, but saying they are unplugged

I reinstalled windows on this laptop because it was not working correctly, and a new problem arose after installation, the laptop says that the speakers in the HDMI display I use are "unplugged", but they work fine with my Xbox. I know it is not a hardware problem because before I reinstalled windows, I installed Ubuntu 18.04 cause why not, and the speakers worked fine. The built in speakers on the laptop work fine

I've tried uninstalling and reinstalling drivers, and doing a good few other things I've seen on other forums.

Solutions?

Go to Settings/System/Sound. Take the drop down arrow under Choose Your Output device and choose your HDMI sound output.