What is the problem?
Unable to connect to port ttyACM0. ERROR MESSAGE: Offline after error No more candidates to test, and no working port/baudrate combination detected.
When typing dmesg in raspberry cmd, I get "Device not responding to setup address". It DOES read that this is a printer.
What did you already try to solve it?
Wiped SD, used Balena to reinstall image, and basically restarted octoprint from scratch.
Manually put in necessary USB port into "Additional Serial Ports", but is still not recognized. I retrieved this port by disconnecting and connecting printer and getting dmesg logs (attached below).
I have tried many different USB cables, to the point of buying a new one specifically for this, to no avail.
Also deleted some USB port as per this blog post --> Offline (Error: No more candidates to test, and no working port/baudrate combination detected.)
Didnt do anything, and hopefully didn't break any more.
Installed Malyan/Monoprice Connection Fix (0.1.3). This worked when I first bought the printer and installed octoprint. Now no longer works.
Logs (syslog, dmesg, ... no logs, no support)
pi@octopi:~ $ dmesg | tail -n 20
[ 389.613196] usb 1-1.1: Product: Malyan 3D Printer
[ 389.613206] usb 1-1.1: Manufacturer: Malyan System
[ 389.613218] usb 1-1.1: SerialNumber: 2073394C4352
[ 389.681408] cdc_acm 1-1.1:1.0: ttyACM0: USB ACM device
[ 389.683767] usbcore: registered new interface driver cdc_acm
[ 389.683776] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 390.914260] usb 1-1.1: USB disconnect, device number 3
[ 392.305768] usb 1-1.1: new full-speed USB device number 4 using xhci_hcd
[ 820.227734] usb 1-1.3: new full-speed USB device number 5 using xhci_hcd
[ 820.328218] usb 1-1.3: Device not responding to setup address.
[ 820.547941] usb 1-1.3: Device not responding to setup address.
[ 820.767693] usb 1-1.3: device not accepting address 5, error -71
[ 1136.446319] usb 1-1.4: new full-speed USB device number 7 using xhci_hcd
[ 1136.593653] usb 1-1.4: New USB device found, idVendor=2974, idProduct=0503, bcdDevice= 2.00
[ 1136.593673] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1136.593687] usb 1-1.4: Product: Malyan 3D Printer
[ 1136.593698] usb 1-1.4: Manufacturer: Malyan System
[ 1136.593708] usb 1-1.4: SerialNumber: 2073394C4352
[ 1136.598500] cdc_acm 1-1.4:1.0: ttyACM0: USB ACM device
[ 1137.427985] usb 1-1.4: USB disconnect, device number 7
octoprint-systeminfo-20220118003314.zip (32.8 KB)
Additional information about your network (Hardware you are trying to connect to, hardware you are trying to connect from, router, access point, used operating systems, ...)
Raspberry PI 4B
Monoprice Select Mini v2
CableCreation USB Male to MicroUSB Cable