You might try the "ResetUSB=1" parameter. This will issue a reset command after completing the message transfer. Somewhat unsubtle and just a shot in the dark, but who knows?
I just hope we did not encounter an issue with the xhci driver ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/979697 Title: Modeswitching modem not working in USB 3.0 port To manage notifications about this bug go to: https://bugs.launchpad.net/usb-modeswitch/+bug/979697/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs