On Fri, 01 Jan 2021 14:40:39 +0100, Christian Labisch wrote:
$ cat /sys/module/snd_hda_intel/parameters/power_save 0
Hm, then the best would be to run git bisect for spotting out the breaking commit. There has been no change in VIA codec driver at all between v5.9 and v5.10, so the rest possibility is either in HD-audio codec helper code or controller code (or both) -- if it's about the changes in the sound driver.
Or you can try the oneliner below as a test shot; it might keep the widget node power D0, which is currently the only possible appearance of the difference between working and non-working cases.
BTW, please avoid top-posting. It's confusing.
thanks,
Takashi
-- 8< -- --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -115,7 +115,7 @@ static struct via_spec *via_new_spec(struct hda_codec *codec) spec->gen.keep_eapd_on = 1; spec->gen.pcm_playback_hook = via_playback_pcm_hook; spec->gen.add_stereo_mix_input = HDA_HINT_STEREO_MIX_AUTO; - codec->power_save_node = 1; + // codec->power_save_node = 1; spec->gen.power_down_unused = 1; codec->patch_ops = via_patch_ops; return spec;