using the "39-usbmuxd.rules" file from cosmic (usbmux-1.1.1~git20180428.b95a0a0-1) solves the problem.
Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891507 ** Bug watch added: Debian Bug tracker #891507 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891507 ** Also affects: usbmuxd (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891507 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1778767 Title: iPhone doesn't chard when plugged in after disconnect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usbmuxd/+bug/1778767/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs