What is the problem?
Serial connection drops out almost randomly.
What did you already try to solve it?
yes, changed power supply, usb cable.
Have you tried running in safe mode?
no, it is random.
Did running in safe mode solve the problem?
no
Systeminfo Bundle
You can download this in OctoPrint's System Information dialog ... no bundle, no support!)
octoprint.log (42.6 KB)
serial.log (740 Bytes)
Ender 3 pro
Octo print Version 1.8.6
Octo Pi Version 0.18.0
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
It has never lost connection while printing yet, when I notice it is if the bed is heating up and it reaches desired temp it disconnects, I believe it happened once when hotend reached the set temp also. I have the pi 3 setup to run two printers but one is not connected at this time.
sudo nano /etc/udev/rules.d/99-usb.rules
#Tevo3pro
SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", ATTRS{devpath}=="1.3", SYMLINK+="Tevo3pro"
#ender3
SUBSYSTEM=="tty", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", ATTRS{devpath}=="1.5", SYMLINK+="Ender3pro"
I can't duplicate the issue it is random. Based on the logs do ya'll see anything that may lead me to the right direction? I'm wondering if its a voltage issue, I tried swapping the power supply feeding the pi but still have the issue. I will try monitoring voltage and see if I can see it drop out at any point.
2022-12-29 00:31:40,169 - octoprint.util.comm - INFO - Firmware states that it supports temperature autoreporting
2022-12-29 00:31:40,273 - octoprint.util.comm - INFO - Firmware states that it supports emergency GCODEs to be sent without waiting for an acknowledgement first
2022-12-29 00:34:27,399 - octoprint.util.comm - ERROR - Unexpected error while reading from serial port
Traceback (most recent call last):
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint/util/comm.py", line 3997, in _readline
ret = self._serial.readline()
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint/util/comm.py", line 6672, in readline
c = self.read(1)
File "/home/pi/oprint/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read
'device reports readiness to read but returned no data '
serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2022-12-29 00:34:27,406 - octoprint.util.comm - ERROR - Please see OctoPrint randomly loses connection to the printer with a "SerialException" - FAQ - OctoPrint Community Forum for possible reasons of this.
2022-12-29 00:34:27,425 - octoprint.util.comm - INFO - Changing monitoring state from "Operational" to "Offline after error"
octoprint.log (42.6 KB)
serial.log (740 Bytes)
