Bionic:
The problem does **not** occur on Ubuntu 18.04 with HWE-kernel 5.4.0-137 (-138 I did not test, sorry)
The problem does **not** occur on Ubuntu 18.04 with HWE-kernel 5.4.0-139 > fixed!
The problem **does** occur on Ubuntu 18.04 with kernel 4.15.0-204
The problem does **not** occur on Ubuntu 18.04 with kernel 4.15.0-206.217 > fixed!
Bionic:
The problem does **not** occur on Ubuntu 18.04 with HWE-kernel 5.4.0-137 (-138 I did not test, sorry)
The problem does **not** occur on Ubuntu 18.04 with HWE-kernel 5.4.0-139 > fixed!
The problem **does** occur on Ubuntu 18.04 with kernel 4.15.0-204
The problem does **not** occur on Ubuntu 18.04 with kernel 4.15.0-206.217 > fixed!
Thank you very much!