No ports discovered

[Ebola-Chan-bot]

Describe the bug
IDE could not discover any board

To Reproduce
Steps to reproduce the behavior:

1. Open the IDE
2. Install Arduino AVR Boards
3. Found no ports connected
4. Pull out my USB connected board and plug it in again
5. Still found no ports connected

Expected behavior
IDE should have found my Arduino Mega 2560 board.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10 Professional 19043.1348
• IDE: 2.0.0-beta.12

Additional context
Both windows device manager and MATLAB can discover my board. MATLAB scripts can normally connect to and operate on the board.
I rolled back to beta.11 and everything went fine. There must be something wrong in beta.12.

[per1234]

It looks very similar to #573, but there is a significant difference:

4. Pull out my USB connected board and plug it in again
5. Still found no ports connected

When I experience #573, after unplugging and then replugging the board its port is always recognized by the IDE (though any other ports on the computer remain unrecognized.

[Ebola-Chan-bot]

It looks very similar to #573, but there is a significant difference:

1. Pull out my USB connected board and plug it in again
2. Still found no ports connected

When I experience #573, after unplugging and then replugging the board its port is always recognized by the IDE (though any other ports on the computer remain unrecognized.

Because this is beta.12 not 11?😀 The bug grows up along with the version number😀

[per1234]

Hello @Silver-Fang. The similar bug #573 was fixed for me by builtin:serial-discovery@1.3.0, which is now in use by the nightly build of Arduino IDE 2.x.

Please try the nightly build and let us know whether the bug is fixed for you or not. The download links for the nightly build are here:
https://github.com/arduino/arduino-ide#nightly-builds

[per1234]

Hi @Silver-Fang. Please try again with the latest release of the Arduino IDE and let us know whether or not the bug is fixed for you.

[Ebola-Chan-bot]

Hi @Silver-Fang. Please try again with the latest release of the Arduino IDE and let us know whether or not the bug is fixed for you.

Yes, it's fixed.