** Description changed: - this bug is for tracking purpose. + [Impact] + we have a couple of Dell ADL laptops which have sdw audio, after upgrading + the BIOS to 0.1.4 or above, the sdw audio can't work anymore, the driver + can't parse the codec layout from ACPI table anymore. + + + [Fix] + Backport two patches from upstream. + + [Test] + Boot the patched kernel on those machines both with old bios and + new bios, all work well, the sdw audio could initialize and the + audio function work well. + + [Where problems could occur] + If it could introduce regression, it will be on the acpi sdw codec + parsing, so some sdw audio machines could fail to find the codec, then + the whole audio function fails. But this possibility is very low, we + already tested the patches on both old bios and new bios.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1955686 Title: alsa/sdw: fix the audio sdw codec parsing logic in the acpi table To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1955686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
