Just hit this upgrading a stable box from 4.19.0-6-powerpc64le to 4.19.0-17-powerpc64le. AMD RX480, works perfectly again after downgrading to the older kernel.
- Bug#990279: linux-image-5.10.0-7-powerpc64le: U... Nathaniel Wesley Filardo
- Bug#990279: Also affects stable... Timothy Pearson
- Bug#990279: Also affects stable... Timothy Pearson
- Bug#990279: linux-image-5.10.0-7-powerpc64... Nathaniel Filardo
- Bug#990279: 9a89a721b41b (" drm/amdgp... Nathaniel Filardo
- Bug#990279: 9a89a721b41b (" drm/amdgp... Xi Ruoyao
- Bug#990279: 9a89a721b41b (" drm/amdgp... Christian König
- Bug#990279: 9a89a721b41b (" drm/a... Salvatore Bonaccorso
- Bug#990279: 9a89a721b41b (" d... Salvatore Bonaccorso
- Bug#990279: 9a89a721b41b (&quo... Nathaniel Filardo
- Bug#990279: marked as done (linux-image-5.... Debian Bug Tracking System
- Bug#990279: 9a89a721b41b (" drm/amdgp... Andrew
