What is the problem?
My printer keeps disconnecting mid print, with the error "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?)'"
What did you already try to solve it?
- Changed cables (just ordered new ones and will test that tomorrow)
- Updated Octoprint
- Turned off and on the printer and raspberry pi zero 2 w many times
Here is the what the serial log shows:
2024-02-21 20:45:17,656 - 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:4158
2024-02-21 20:45:17,738 - Please see https://faq.octoprint.org/serialerror for possible reasons of this.
2024-02-21 20:45:17,776 - Changing monitoring state from "Printing" to "Offline after error"
2024-02-21 20:45:17,833 - Connection closed, closing down monitor
2024-02-22 00:11:29,435 - Changing monitoring state from "Offline" to "Opening serial connection"
2024-02-22 00:11:29,456 - Connecting to port /dev/ttyUSB0, baudrate 115200
2024-02-22 00:11:29,545 - Changing monitoring state from "Opening serial connection" to "Connecting"
2024-02-22 00:11:29,554 - Connected to: Serial<id=0x707a9760, open=True>(port='/dev/ttyUSB0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=10.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2024-02-22 00:11:29,570 - Send: N0 M110 N0*125
2024-02-22 00:11:29,620 - Recv: echo:Unknown command: "q9ÿçGfÿÿ–ÿGN0 M110 N0"
2024-02-22 00:11:29,625 - Recv: ok
2024-02-22 00:11:29,634 - Send: N0 M110 N0*125
2024-02-22 00:11:29,677 - Changing monitoring state from "Connecting" to "Operational"
2024-02-22 00:11:29,730 - Recv: ok
2024-02-22 00:11:29,743 - Send: N0 M110 N0*125
2024-02-22 00:11:29,778 - Recv: ok
2024-02-22 00:11:29,784 - Send: N1 M115*39
2024-02-22 00:11:29,834 - Recv: FIRMWARE_NAME:Marlin bugfix-2.0.x (Sep 9 2022 14:01:11) SOURCE_CODE_URL:github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:Anycubic Kobra Neo EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
2024-02-22 00:11:29,873 -
2024-02-22 00:11:29,883 - ---------------------------------------------------------------------------
2024-02-22 00:11:29,924 - Your printer's firmware is a development build of Marlin (build date
2024-02-22 00:11:29,924 - 20220909). It might be more unstable than a release version and should be
2024-02-22 00:11:29,924 - kept up-to-date.
2024-02-22 00:11:29,924 -
2024-02-22 00:11:29,925 - Learn more at https://faq.octoprint.org/warning-firmware-development
2024-02-22 00:11:29,925 - ---------------------------------------------------------------------------
2024-02-22 00:11:29,925 -
2024-02-22 00:11:29,925 -
2024-02-22 00:11:29,984 - Recv: Cap:SERIAL_XON_XOFF:0
2024-02-22 00:11:29,997 - Recv: Cap:BINARY_FILE_TRANSFER:0
2024-02-22 00:11:30,039 - Recv: Cap:EEPROM:1
2024-02-22 00:11:30,043 - Recv: Cap:VOLUMETRIC:1
2024-02-22 00:11:30,049 - Recv: Cap:AUTOREPORT_TEMP:1
2024-02-22 00:11:30,074 - Recv: Cap:PROGRESS:0
2024-02-22 00:11:30,092 - Recv: Cap:PRINT_JOB:1
2024-02-22 00:11:30,096 - Recv: Cap:AUTOLEVEL:1
2024-02-22 00:11:30,108 - Recv: Cap:RUNOUT:1
2024-02-22 00:11:30,115 - Recv: Cap:Z_PROBE:1
2024-02-22 00:11:30,137 - Recv: Cap:LEVELING_DATA:1
2024-02-22 00:11:30,181 - Recv: Cap:BUILD_PERCENT:0
2024-02-22 00:11:30,185 - Recv: Cap:SOFTWARE_POWER:0
2024-02-22 00:11:30,201 - Recv: Cap:TOGGLE_LIGHTS:0
2024-02-22 00:11:30,219 - Recv: Cap:CASE_LIGHT_BRIGHTNESS:0
2024-02-22 00:11:30,225 - Recv: Cap:EMERGENCY_PARSER:1
2024-02-22 00:11:30,230 - Recv: Cap:PROMPT_SUPPORT:0
2024-02-22 00:11:30,252 - Recv: Cap:SDCARD:1
2024-02-22 00:11:30,259 - Recv: Cap:REPEAT:1
2024-02-22 00:11:30,290 - Recv: Cap:AUTOREPORT_SD_STATUS:0
2024-02-22 00:11:30,351 - Recv: Cap:LONG_FILENAME:1
2024-02-22 00:11:30,410 - Recv: Cap:THERMAL_PROTECTION:1
2024-02-22 00:11:30,416 - Recv: Cap:MOTION_MODES:0
2024-02-22 00:11:30,470 - Recv: Cap:ARCS:1
2024-02-22 00:11:30,474 - Recv: Cap:BABYSTEPPING:1
2024-02-22 00:11:30,481 - Recv: Cap:CHAMBER_TEMPERATURE:0
2024-02-22 00:11:30,489 - Recv: ok
2024-02-22 00:11:30,493 - Send: M21
2024-02-22 00:11:30,522 - Recv: echo:SD card ok
2024-02-22 00:11:30,536 - Recv: ok
2024-02-22 00:11:30,540 - Send: M155 S2
2024-02-22 00:11:30,565 - Recv: ok
2024-02-22 00:11:30,573 - Send: M20
2024-02-22 00:11:30,628 - Recv: Begin file list
2024-02-22 00:11:30,641 - Recv: AK_GPU~1.GCO 7396038
2024-02-22 00:11:30,643 - Recv: G1_X11~1.GCO 1157
2024-02-22 00:11:30,645 - Recv: End file list
2024-02-22 00:11:30,647 - Recv: ok
2024-02-22 00:11:30,661 - Send: M20
2024-02-22 00:11:30,694 - Recv: Begin file list
2024-02-22 00:11:30,707 - Recv: AK_GPU~1.GCO 7396038
2024-02-22 00:11:30,710 - Recv: G1_X11~1.GCO 1157
2024-02-22 00:11:30,712 - Recv: End file list
2024-02-22 00:11:30,713 - Recv: ok
I'm kind of new to this so any help will be appreciated, thanks!