On Thu, Oct 07, 2021 at 02:15:45PM -0600, D. R. Evans wrote: > For years (decades, actually) I have routinely executed graphical programs > over ssh (i.e., I sit at computer A, ssh into computer B, then run a > graphical program on computer B whose windows, mouse events, etc., all occur > on computer A). > > In bullseye, at least out-of-the-box bullseye, this suddenly no longer works.
You should have been using "ssh -X B" all along to get this functionality. Your previous system A must have had ssh_config (or your personal .ssh/config) set up to turn on X11 forwarding by default, which is not recommended.
