One genuine linux problem (usb3 hub), and a bunch of application issues. When presented with a solution (disable xhci), you decided to ignore it. Good luck wit

One genuine linux problem (usb3 hub), and a bunch of application issues. When presented with a solution (disable xhci), you decided to ignore it. Good luck with your kubuntu installation. I've heard it went downhill the last few years (post-systemd).