One other possibly-related piece. When I start emacs, I see this: # emacs -Q counties.cpp ** (emacs:4784): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.a11y.Bus exited with status 1 -- Jim Reisert AD1C, <jjreisert@alum.mit.edu>, https://ad1c.us