2021-09-11 23:31:23,300 - serial.log is currently not enabled, you can enable it via Settings > Serial Connection > Log communication to serial.log 2021-09-11 23:31:49,225 - Enabling serial logging 2021-09-11 23:32:18,511 - Send: N0 M110 N0*125 2021-09-11 23:32:18,701 - Unexpected error while reading serial port, please consult octoprint.log for details: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:3831 2021-09-11 23:32:18,702 - Please see https://faq.octoprint.org/serialerror for possible reasons of this. 2021-09-11 23:32:18,704 - Changing monitoring state from "Detecting serial connection" to "Offline (Error: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:3831)" 2021-09-11 23:32:18,704 - Connection closed, closing down monitor 2021-09-11 23:40:32,057 - Changing monitoring state from "Offline" to "Detecting serial connection" 2021-09-11 23:40:32,083 - Performing autodetection with 7 port/baudrate candidates: /dev/ttyACM0@115200, /dev/ttyACM0@250000, /dev/ttyACM0@230400, /dev/ttyACM0@57600, /dev/ttyACM0@38400, /dev/ttyACM0@19200, /dev/ttyACM0@9600 2021-09-11 23:40:32,083 - Trying port /dev/ttyACM0, baudrate 115200 2021-09-11 23:40:32,085 - Connecting to port /dev/ttyACM0, baudrate 115200 2021-09-11 23:40:32,110 - Handshake attempt #1 with timeout 2.0s 2021-09-11 23:40:32,112 - Connected to: Serial(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=2.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor 2021-09-11 23:40:32,113 - Send: N0 M110 N0*125 2021-09-11 23:40:34,116 - Handshake attempt #2 with timeout 2.0s 2021-09-11 23:40:34,124 - Send: N0 M110 N0*125 2021-09-11 23:40:36,125 - Handshake attempt #3 with timeout 2.0s 2021-09-11 23:40:36,131 - Send: N0 M110 N0*125 2021-09-11 23:40:38,132 - Trying port /dev/ttyACM0, baudrate 250000 2021-09-11 23:40:38,138 - Handshake attempt #1 with timeout 2.0s 2021-09-11 23:40:38,143 - Send: N0 M110 N0*125 2021-09-11 23:40:40,145 - Handshake attempt #2 with timeout 2.0s 2021-09-11 23:40:40,150 - Send: N0 M110 N0*125 2021-09-11 23:40:42,151 - Handshake attempt #3 with timeout 2.0s 2021-09-11 23:40:42,160 - Send: N0 M110 N0*125 2021-09-11 23:40:44,160 - Trying port /dev/ttyACM0, baudrate 230400 2021-09-11 23:40:44,163 - Handshake attempt #1 with timeout 2.0s 2021-09-11 23:40:44,173 - Send: N0 M110 N0*125 2021-09-11 23:40:46,174 - Handshake attempt #2 with timeout 2.0s 2021-09-11 23:40:46,184 - Send: N0 M110 N0*125 2021-09-11 23:40:48,183 - Handshake attempt #3 with timeout 2.0s