Daniel, thanks for the workaround! It works! I can confirm that JACK not starting on SOF can be fixed by just setting the period to 1008 or 2040. I'm on Dell G5.
However, JACK with such a setup is completely unusable for me. All applications produce noise instead of proper sound, probably expecting a power of 2 frame sizes. The only setting which helps somewhat is "Force 16-bit" ("works" only for period of 1080, not for 2040) which makes the sound almost normal, but with crackling distortion. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872244 Title: Jack audio not working on Ubuntu 20.04 running on a Thinkpad Carbon X1 (7th gen) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jackd-defaults/+bug/1872244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs