5.4.0-1011-raspi is an ancient kernel from May. How did you end up using that? Current is 5.4.0-1022.25. With that kernel, I still had to copy the DTBs from the kernel to make it work. So it looks like another DTB/kernel mismatch.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1905272 Title: Can't get h/w video acceleration on rpi4 To manage notifications about this bug go to: https://bugs.launchpad.net/snapd/+bug/1905272/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs