Solved: I forgot to call "define" to start the machine with the edited : virsh define xxxx.xml I virt-manager I achived add "hardware" -> USB and added the certain USB-device. After the xml was modified, but different to my changements. Suddenly I remembered to call "define" :) _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users