Haswell audio no longer working with new Catpt driver

[Takashi Iwai]

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;