Bug#959020: upgrade-reports: Soundcard not detected after upgrading to kernel 5.5.0-2-amd64 in testing

[silverblue]

                      I updated to kernel linux-image-5.6.0-1-amd64 in testing today and hoped this would resolve the issue. However, the issue is still the same. Booting with the older kernel linux-image-5.4.0-4-amd64 is working. I also tried a Fedora32 live system with kernel 5.6.6 and there the sound card is working just perfectly. Beside playing sound the digital mic is also fully working. How to get the same good experience in debian? Please advice. Thank you!