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Arduino board continuously dis/reconnects in Ubuntu. #2137

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@aliphys

Description

@aliphys

Describe the problem

Arduino board continuously dis/reconnects in the IDE. I cannot upload any sketch.

To reproduce

  1. Open the AppImage IDE by running the ./arduino-ide_2.1.1_Linux_64bit.AppImage command in the directory
  2. Connect the Nano 33 BLE Sense
  3. The board constantly disconnects and reconnects as shown in this video Screencast from 2023-07-12 12:40:49.webm
  4. This is the console output that is constantly repeated
    2023-07-12T10:48:12.052Z discovery-log INFO {"eventType":"add","port":{"matchingBoardsList":[{"name":"Arduino Nano 33 BLE","fqbn":"arduino:mbed_nano:nano33ble","isHidden":false}],"port":{"address":"/dev/ttyACM0","label":"/dev/ttyACM0","protocol":"serial","protocolLabel":"Serial Port (USB)","propertiesMap":[["pid","0x005a"],["serialNumber","00000000000000007877035BF3A113E9"],["vid","0x2341"]],"hardwareId":"00000000000000007877035BF3A113E9"}},"error":""}
    2023-07-12T10:48:12.065Z root INFO Attached boards and available ports changed:
    2023-07-12T10:48:12.066Z root INFO  - Attached board: Arduino Nano 33 BLE [arduino:mbed_nano:nano33ble] on /dev/ttyACM0 Serial Port (USB)
    2023-07-12T10:48:12.066Z root INFO ------------------------------------------
    2023-07-12T10:48:12.082Z discovery-log INFO {"eventType":"remove","port":{"matchingBoardsList":[],"port":{"address":"/dev/ttyACM0","label":"","protocol":"serial","protocolLabel":"","propertiesMap":[],"hardwareId":""}},"error":""}
    2023-07-12T10:48:12.084Z daemon INFO INFO[0007] from discovery builtin:serial-discovery received message type: remove, port: /dev/ttyACM0 
    

Expected behavior

I can select the board from the drop down list and upload to it.

Arduino IDE version

2.1.1

Operating system

Linux

Operating system version

Ubuntu 22.04

Additional context

  • udev rules are applied as stated in this Help Centre article https://support.arduino.cc/hc/en-us/articles/9005041052444-Fix-udev-rules-on-Linux#mbed-os
  • The current user is added to the dialout group via the sudo adduser user dialout command
  • To eliminate potential Serial conflicts, the brltty tool is uninstalled sudo apt remove brltty
  • Output of sudo dmesg | tail -f
    user@user-laptop:~/Downloads$ sudo dmesg | tail -f
    [sudo] password for user: 
    [ 1830.373843] cdc_acm 1-3:1.0: ttyACM0: USB ACM device
    [ 1830.423944] usb 1-3: USB disconnect, device number 24
    [ 1830.731637] usb 1-3: new full-speed USB device number 25 using xhci_hcd
    [ 1830.883801] usb 1-3: New USB device found, idVendor=2341, idProduct=005a, bcdDevice= 0.11
    [ 1830.883821] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    [ 1830.883830] usb 1-3: Product: Arduino Nano 33 BLE
    [ 1830.883837] usb 1-3: Manufacturer: Arduino
    [ 1830.883844] usb 1-3: SerialNumber: 00000000000000007877035BF3A113E9
    [ 1830.887146] cdc_acm 1-3:1.0: ttyACM0: USB ACM device
    [ 1830.936194] usb 1-3: USB disconnect, device number 25
    
    

Issue checklist

  • I searched for previous reports in the issue tracker
  • I verified the problem still occurs when using the latest nightly build
  • My report contains all necessary details

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