Ubuntu
linux package

  1. Bug #1931684
  2. Comment #3

Comment 3 for bug 1931684

Revision history for this message
Matthias Kuntze (shiro-kano) wrote :

Im using Ubuntu 20.04 LTS and have the same problem. I got the problem after upgrading from Kernel 5.4.0-73-generic to 5.4.0-74-generic. As I got in addition a firmware/microcode update it may be possible that the error is adjacent to that update too.
If I boot to kernel 5.4.0-73-generic I have access to the serial line (e.g. /dev/ttyACM3).