Ubuntu
linux-raspi package

  1. Bug #1930629
  2. Comment #19

Comment 19 for bug 1930629

Revision history for this message
Filip Weiss (filip-weiss) wrote (last edit ):

How did you do that @juergh? Similar setup?

In the meantime i have tried to narrow the bug down further:

* I have replaced the raspberry pi
* Ensured that i use grounded power supplied for the hubs
* Tested with raspi-os & old "known good" kernel 4.19 (from https://github.com/raspberrypi/linux/issues/3981)

I experienced the problem with all of these. The error messages differ but the end result of all USB devices disconnecting was the same (btw this includes a USB stick that is NOT connected to a hub).
So i think this is not an ubuntu specific problem.

This problem does not occur if i use the USB2 ports.