What is the problem?
I cannot connect my CR-10 Mini to Octoprint. Error: "Failed to autodetect serial port, please set it manually." Even after entering the additional serial port, all that shows is "Auto" when I select the dropdown.
What did you already try to solve it?
From other posts regarding CR-10, I am pretty sure that the "/dev/ttyUSB0" port will solve my problem. I have entered that in the space for "additional Serial Ports" in Settings > Serial Connection. I saved and refreshed, turned printer off/on, sudo reboot on my Pi, restarted the server. It seems I am doing everything right, but there is still nothing in the dropdown when I go to select something other than Auto.
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware,
serial.log or output on terminal tab, ...)
Running most recent release of Octopi on RPi 3B+. Octoprint itself is working great with webcam all set up, HAProxy and DDNS all set up. the 3d printer works great on regular prints, just can't connect to Octoprint... Any ideas?