alsa-project/alsa-ucm-conf pull request #34 was opened from kv2019i: The Headphone Playback Switch control is not present in all HDA codecs. Allow the Headphones definition to work also on such systems. Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx> Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/34 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/34.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf