Serial communication is spotty and breaks down after only a few commands parsed. I lack a 2nd rpi or 422 board to rule either out. Here is output from octoprint terminal, only recently have these more descriptive errors occurred, before it just said won't connect due to error (duh). At same time I did update to stable I also put printer on it's side where no port was strained to add some springy feet. (I advise wire-tying all cables to compatible parts of frame whenever doing this.)
Unexpected error while connecting to serial port /dev/ttyUSB0, baudrate 115200 from hook default: SerialException: '[Errno 5] could not open port /dev/ttyUSB0: [Errno 5] Input/output error: '/dev/ttyUSB0'' @ comm.py:_open_serial:3699
What did you already try to solve it?
I swapped the USB cable for printer from one port to another. Safe mode of course and plenty of restarts. Replugged the micro-b connector several times and verified the port was still on PCB. I'm getting a v427 board for my printer monday so I'll be back..
Have you tried running in safe mode?
WRITE HERE
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!)
Since upgrading to 1.6.0stable, I am also getting serial issues. The printer is very jerky. Creality Ender3 pro - BTT-SKRmini E3 V2.0 running Marlin bugfix 2.0.7.2
It only started after upgrading to 1.6.0 since I pulled a print job previously printed just before upgrading. This one now is also showing the exact jerky behaviour. octoprint-systeminfo-20210503151425.zip (2.7 MB)
No, as so far no one has opened one and also so far all instances of this kind of issue were due to third party plugins. So test in safe mode, if the issue persists open a full bug report please.