On Mon, Oct 23, 2023 at 11:37:10PM -0400, Morgan Aldridge wrote: > I have experimented with the following with no change in the underlying > issue of the terminal showing the login prompt, but each character input > causing the login prompt to be resent:
If you short the tx/rx lines at the DE-9 end and then access the serial device using /usr/bin/cu on the OpenBSD machine, does your input reliably each back to you? Or are some characters lost or garbled? (Obviously remove or disable the ttys line for this test.) You might need to short rts/cts and dtr/dsr as well depending on your hardware handshaking setup.