After enabling MSI within /etc/modprobe.d/ the card is working as expected:
options ddbridge msi=1 Upstream bug report has been updated accordingly. Regards Berni
- Bug#964734: linux-image-4.19.0-9-amd64: [bisect... Bernhard Turmann
- Bug#964734: Patch to revert bad commit Bernhard Turmann
- Bug#964734: same problem with newer ke... Bernhard Turmann
- Bug#964734: Confirmed workaround: ... Bernhard Turmann
- Bug#964734: marked as done (linux-image-4.... Debian Bug Tracking System
- Bug#964734: reopened Bernhard Turmann
