Indeed, lots of USB port resets in https://launchpadlibrarian.net/176813239/CurrentDmesg.txt. I suppose the port that the hub is connected to is simply unable to provide enough power for all devices on the hub, or there is a bad USB cable or other hardware problem. Please try the USB device on a different USB port that's connected directly to the computer; if the device has its own power supply, try a different cable, or a different hub to isolate the problem?
** Changed in: systemd (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1325757 Title: USB Hub does not mount the USB devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1325757/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs