Thanks for your testing. And I remember we need to enable some configs to make the audio work. If you have time, please have a try with below:
Adding these configs to config.txt # Enable audio (loads snd_bcm2835) dtparam=audio=on disable_audio_dither=on -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848790 Title: USB not working under arm64 on Pi4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1848790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
