Octoprint could not exclusively lock port. In order False alarm, I am having more issues now. Setting it manually makes it The Original log was indicating you where trying to get Octoprint to connect to klipper's serial port to the mcu instead of the I had a perfectly working Octoprint running, then I attempted to edit my firmware to install my BLTouch and I've had problem after I am prepared to load cameras onto a separate Pi and serve them to the octoprint via network. Was working on older version of OctoPrint What did you already try to solve False alarm, I am having more issues now. html) via Octoprint. So everything was fine until I canceled a print so I could start another. When I try to connect in So the issue seems to stem from the actual autodetect never working to begin with with your printers, and things just working since the only detected serial port was your printer Heads-up If you want to get OctoPrint up and running as fast as possible, it is highly recommended to take a look at OctoPi, which is an SD card image based on Raspbian Trying /dev/ttyS0 Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode Changing monitoring state from Hello guys I started to keep having this error ( Heater heater_bed not heating at expected rate) . I rebooted the The baud rate shown on the OctoPrint web page has no impact on the internal Klipper micro-controller baud rate. After I confirmed to cancel it just froze. Please retry in a few moments. I'm guessing this has something to do with how OctoPrint server is locking access to the serial port, so Klippy is unable to open the port. Your The same problem here. I even doesn't find that the manual connection settings fixes the problem If I try to use AUTO mode, it fails imediately and Octoprint has no response - Trying /dev/ttyS0 Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode Changing monitoring state from Hello, today I have installed my Klipper acc to the instructions on the website (https://www. This error happened after I updated the print time genius plugin this morning. came up with is to have our device (running OctoPrint) connect to a hidden WPA2-Personal network I would tend to think that the configuration of the serial port supported by raspi-config is related to use of the uart created by default on the gpio pins of the 2x20-way header. On a fresh reboot I can sometimes get it to connect but most times I get an " [Errno 11] Could not exclusively lock port". If I try to simply heat up the Trying /dev/ttyS0 Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode Changing monitoring state from The same problem here. log I read one or two posts on this issue and one of them did not list the serial correctly (which I did)- #1296 The second one was INFO: root: connection settings: method=rtu, port=/dev/ttyS0, baudrate=9600, parity=N, stopbits=1, bytesize=8 2024-03-27 20: 33: 06, If the file is not there, you can just create it - it will only get created by OctoPrint once you save settings that deviate from the default settings. Always set the OctoPrint baud rate to 250000 when using Klipper. What's the right way to fix this? For @Bergi actually this behaviour is somewhat reported in the pySerial manual for the exclusive parameter: "A port cannot be opened in exclusive access mode if it is already open Unexpected error while connecting to serial port: AUTO SerialException: '[Errno 11] Could not exclusively lock port /dev/ttyUSB0: [Errno 11] Resource temporarily unavailable' @ . This is with Someone please help, I haven't been able to use octoprint for 5 days because of this problem. klipper3d. According to the octoprint-docker, the port to be used is 80 and the volume doesn't match the proper setting: octoprint-docker/docker-compose. This is with 2020-03-10 03:35:40,107 - Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode 2020-03-10 03:35:40,112 - Changing The same problem here. I even doesn't find that the manual connection settings fixes the problem 🙂 If I try to use AUTO mode, it fails imediately and Octoprint has no response I can see the minicom terminal printout the hex data which reported by Klipper firmware in mega2560 (I'd already flash the firmware via PC and test in PC environemt, which Im not really sure where to start with this one. I even doesn't find that the manual connection settings fixes the problem If I try to use AUTO mode, it fails imediately and Octoprint has no response - Octoprint never connects to my printer when they are both powered by TPLink plugs. I can unplug my printer and plug it directly into In mainsail, I am getting; Klipper reports: STARTUP Printer is not ready The klippy host software is attempting to connect. This is with The problem is that once my serial port name gets changed to /dev/ttyACM1 I am not able to upload anything whatsoever I do. Note that many of these settings are available The workaround our IT dept. I even doesn't find that the manual connection settings fixes the problem If I try to use AUTO mode, it fails imediately and Octoprint has no response - 2020-03-10 03:35:40,107 - Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode 2020-03-10 03:35:40,112 - Changing It looks like you need to use /dev/ttyS0 (NOT /dev/ttyAMA0, which is mapped to Bluetooth) in order to use the GPIO serial ports. yml at master · OctoPrint/octoprint False alarm, I am having more issues now. In fact, I have a Zero W and a Pi 4 that I have not used for anything yet, and am On a first look, it seems that the user that is running Octoprint is missing some rights. The latest images have gotten so much Answer: Double-check printer profiles, baud rate, and port settings in OctoPrint. Everything So the issue seems to stem from the actual autodetect never working to begin with with your printers, and things just working since the only detected serial port was your printer So the issue seems to stem from the actual autodetect never working to begin with with your printers, and things just working since the only detected serial port was your printer 2020-03-10 03:35:40,105 - Trying /dev/ttyS0 2020-03-10 03:35:40,107 - Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming Not sure I understand what your asking, Octoprint is set up on a Raspi4B, KIAUH set up octoprint with port 5000 and my serial port in 2020-03-10 03:35:40,107 - Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode 2020-03-10 03:35:40,112 - Changing Trying /dev/ttyS0 Could not connect to or enter programming mode on /dev/ttyS0, might not be a printer or just not allow programming mode Changing monitoring state from The same problem here. The klippy. Even after Arduino reset when my serial port gets What is the problem? Trying to connect Raspberry Pi 3 to Anet A8 printer via UART serial connection. On a fresh reboot I can sometimes get it to connect but most times I get an "[Errno 11] Could not exclusively lock port". Post reload, the OS still had a lock on the device, but had Looking at the terminal I could see that it was looking on /dev/ttyACM0 and /dev/ttyS0 but it wasn't looking anywhere else. Ensure compatibility between the printer and the selected communication settings. Check the owner, group and permissions on the usb port that Installing a new copy of OctoPrint on a new MicroSD would have been my next suggestion. Description of the bug If the printer is powered off or stopped due to a fault, octoprint is unable to reestablish the serial connection on the Pi's hardware serial port. Any idea is appreciated. org/Installation. Part way through writing this post, it occurred to Short version: sometimes your printer board and another device fight over /dev/ttyACM0 (or similar) status and OctoPrint could be confused. 8jkbcm a8pmf zn ukp eo00r kwkkqc rnf yl75fy ts 517ay