Ok, so sounds like things were still broken in v6.8. Let's keep going back in time.
Could you please try the following kernel and let me know? https://kernel.ubuntu.com/mainline/v6.5/amd64/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2097696 Title: brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097696/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
