Ok I did some further testing, and it looks like the issue comes out when those two conditions are met:
Using Ubuntu Linux + Using front USB 3.0 ports on my desktop. The issue DOES NOT happen (or so it looks like) when I use the back mobo 3.1 USB ports, or I use my laptop, which again has USB 3.1 USB ports. And DOES NOT happen on Windows, with any USB port used on my desktop. So maybe it's something hub driver-related? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828302 Title: CSR Bluetooth driver: Insufficient performance compared to WIndows driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1828302/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs