Based on the Debian bug I just linked, this is expected behavior, and having the viewer resize when the server changes to a larger resolution would be a feature request. I'm triaging this as Wishlist accordingly.
** Bug watch added: Debian Bug tracker #533904 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533904 ** Also affects: tightvnc (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533904 Importance: Unknown Status: Unknown ** Changed in: tightvnc (Ubuntu) Status: New => Triaged ** Changed in: tightvnc (Ubuntu) Importance: Undecided => Wishlist -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1854189 Title: screen size changes terminate xtightvncviewer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tightvnc/+bug/1854189/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs