Arduino uno not detected on Linux

Official Hardware UNO Family UNO R3
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Topic split from No port available for Arduino uno on Linux.

Same subject, but new user with a similar problem (Arduino Ide Port menu option is greyed out), soI don't know if I should create a new post (let me know).

The OP has resolved the issue with a new cable, however mine is good. My Arduino Uno R3 works fine on a Win10 machine with the same cable, however on a recent install of Linux Mint (older Thinkcentre machine), my board does not show up at all. The usb ports on that machine are confirmed to work with other devices.

I searched forums like this one and applied a couple of solutions such as adding myself to the dialout group and removing the Brltty module to no avail. The Uno's leds light up though, but I can't select the board (let alone select a port) in the Ide. I'm very much a newbie in Linux and many of the responses in the forums were beyond my understanding of the workings of Linux.

I would like to resolve this as I plan on moving away from Windows within the year.

2

Do you mean that you have no Uno option as shown below?

image
image1280×731 57.3 KB

Second question would be if lsusb shows the Uno? Disconnect the board, run lsusb, connect the board and run lsusb again*; observe the differences.

Last question for now is which IDE version you're using.

3

Please do not hijack topics. Your problem might have the same symptoms but might have a totally different root cause.

4

You need to verify

  1. That the kernel register the insertion of your Arduino, assign it a name. This will show up in
    dmesg
  2. That your user is in the group dialout or uucp, whichever your linux distro uses.
5

No I couldn't select a board and the port option was greyed out.

lsusb showed no difference whether the board was plugged in or not.

I tried to answer my own post yesterday, but it wouldn't load even though I had wifi connectivity on my tablet (it does that once in a while). The problem turned out to be the usb port I was using (and thought I had checked) was not working. I switched ports and the board instantly showed up. My apologies for the intrusion and false alarm and thank you for taking the time to respond!

Patrick Duclos

1 Like
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I did add myself to the dialout group.

I tried to answer my own post yesterday, but it wouldn't load even though I had wifi connectivity on my tablet (it does that once in a while). The problem turned out to be the usb port I was using (and thought I had checked) was not working. I switched ports and the board instantly showed up. My apologies for the intrusion and false alarm and thank you for taking the time to respond!

Patrick Duclos

7

Great that you got it working.

Please note you should always be able to select the Uno R3 (or any other board) regardless whether the board is connected or not.

8

I have the latest version of the IDE. You are right, I was probably able to select a board now that I check without the board NOT plugged in (although now the port menu option is not greyed out anymore).
Now that I think of it, my post having been split must have happened at the same time I was trying to respond yesterday, but couldn't. Makes sense. Thank you.

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You're welcome :upside_down_face:

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