Kuman 7" Touch Screen - video works touch does not

Hardware
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1

I am trying to use my Le Potato running Raspbian Bullseye and a Kuman 7" touch screen for Klipperscreen on my 3d printer. Everything is running fine, I see the display but the touch input is not registering. The Kuman connects via HDMI and a USB connection.

I’ll admit that I am very new to all things Raspbian/Linux so I’m a bit lost on what to check next. Any suggestions on what could be causing this behavior?

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Run sudo lsusb and paste the output here.
Run sudo apt install evtest to install evtest.
Run sudo evtest and select the touchscreen device.
Touch the screen and see if it prints infomation.
If it prints information, it is calibration that is not done.

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