I am using the 'screen' program to interface with a USB serial device to my armv7 console (Cubieboard 2). This worked just fine friday morning with:
screen /dev/ttyUSB0 115200
Later friday, I reconnected everything and working with a new build, any typing on my part was displayed as garbage characters and the system acted as such. Display from the console was just fine; all the messages were proper characters (I had copy to logfile on). Today, after a 'yum udpate' and system reboot the same behaviour. I was able to try this on another system and there the input is just fine. I have tried different USB ports on this computer, and still garbage.
So what might be happening. I started with minicom, and that actually would not send anything at 115200 and was recommended to use screen that did work for half a day (and works fine on another system).
How might I trouble shoot this or use instead of 'screen'.