On 4/5/2020 3:06 PM, Chris Rhodin wrote: > Hi All, > > I have a rack mount server running a fresh install of Debian buster. On > this system a serial port can only receive data and not transmit. This is > true for both the built in serial port and USB to serial adapters. I'm > testing this with a loop back cable and the command "minicom > --baudrate=9600 --device=/dev/ttyXX". I also have a laptop and desktop Why are you not using '115200n8'? -- John Doe