Based on Christophe's post I modified /lib/udev/usb_modeswitch to wait for a number of seconds before running the modeswitch_dispatcher. Some experimenting determined the minimum number of seconds to be 11. My modem is now detected and switched automatically, even if I have to wait a few seconds longer than usual.
Obviously this is not a real solution but it might point someone more knowledgable in the right direction. Patch attached. ** Patch added: "Patch for workaround" https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/979697/+attachment/3318903/+files/modeswitch.patch -- 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 with NEC Corporation uPD720200 USB 3.0 Host Controller To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/979697/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
