Am Thu, 31 Mar 2022 15:42:43 +0100 schrieb Gareth Evans <donotspam@fastmail.fm>: >A different invocation method, but does this help, or give a clue to something equivalent? > >https://lists.debian.org/debian-user/2021/09/msg00691.html The link was the path to the solution. For gtk output in a newly created window I had to install the package "qemu-system-gui". Thanks a lot for your reply and have a nice day. Dieter