I had decided that the next thing to do was to try to get debug output from usb_modeswitch. In my efforts to find out how to do this I came across
http://www.draisberghof.de/usb_modeswitch/#trouble which includes a couple of notes about devices with ID 19d2:2000. The K3520-Z is one such device. One of the notes is to the effect that newer kernels attempt to switch the mode of some devices and get it wrong for ID 19d2:2000, thereby messing things up for usb_modeswitch. I've no idea whether that is what is happening to me (if it is, then this is a kernel problem), but the revelation that the kernel switches the mode of some devices probably explains why my K3770 switches mode without usb_modeswitch getting involved. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1175093 Title: K3520-Z mode not switched automatically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1175093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
