This is the debdiff for impish. thx.
** Description changed: - This bug is for tracking purpose. + [Impact] + After upgrade the linux kernel, the mixer names of rt715 is changed, the current alsa-ucm-conf will fail to initialize that codec, then users can't record sound from internal mic since the internal mic is routed to the codec rt715. + + [Fix] + Backport 3 upstream commits, after applying these 3 commits, the ucm conf file dosn't initialize the codec with hardcoded mixer names anymore, it will check the existence of the mixer name first, then conditionally initialize the codec. + + [Test] + run 'alsactl init 1' on the precision 5750 with old and new kernel, there is no error logs, use the internal mic to record sound, it could record successfully. + + [Where problems will occur] + The change only affects the rt715 codec, so far, that codec only connects to the internal mic on Dell soundwire audio machines, so it could introduce regression on the internal mic like users can't record sound via internal mic anymore on the Dell soundwire audio machines. But this possibility is very low since we already tested these 3 commits on different Dell soundwire audio machines (latitude and precision). We tested it with old kernel and new kernel, all worked well. ** Patch added: "alsa-ucm-conf_1.2.4-2ubuntu3.debdiff" https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/1936009/+attachment/5510792/+files/alsa-ucm-conf_1.2.4-2ubuntu3.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1936009 Title: The internal mic of Dell Precision 5750 can't record sound To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1936009/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
