Same for pretty much all my bluetooth headsets (Skullcandy Uproar Wireless, Plantronics E50 or M70 & others).
On Ubuntu 20.10, kernel Linux 5.7.0-050700-generic 01.07.2020 12:02 pulseaudio SCO packet received of unaligned size: 5 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 4093 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 3 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 1535 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 4093 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 4095 01.07.2020 12:02 kernel Bluetooth: hci0: SCO packet for unknown connection handle 4095 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1430696 Title: Bluetooth audio instability: Bluetooth: hci0 SCO packet for unknown connection handle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1430696/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs