I use Zorin OS on a Lenovo Yoga to take casual notes in the Saber App.

After around 5 minutes of use in the OS, there seems to be a finger which appears to be always touching a point on the screen. It's always at the same point, and this issue happens even when I never touch the screen after startup. This issue also never happens when on Ubuntu or Windows, and is not caused by the app as it happens also when I don't open the app at all, and is not dependent on whether the laptop lid is normally opened or fully opened.

Anyone has any ideas on how to solve it? It's getting kinda annoying tbh, as the only fix is restarting the computer entirely.

I have Zorin OS running on a 2017 iMac and there's no sound coming from the speakers. I do have sound coming from some Logitech headphones. Does anyone else have this problem?