From: Takashi Iwai Date: Sun, 6 Nov 2011 10:25:34 +0000 (+0100) Subject: ALSA: hda - Fix silent output regression with ALC861 X-Git-Tag: v3.2-rc1~38^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=43dea228a3ba5463392281535dfb3d3fe56f4c2c;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git ALSA: hda - Fix silent output regression with ALC861 The 3.1 kernel has a regression for ALC861 codec where no sound output is heard with the default setup. It's because the amps in DACs aren't properly unmuted while the output mixers are assigned only to pins. This patch fixes the missing initialization of DACs when no mixer is assigned to them. Tested-by: Andrea Iob Cc: [v3.1+] Signed-off-by: Takashi Iwai --- diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 80d6add..9693059 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3329,6 +3329,12 @@ static void alc_auto_set_output_and_unmute(struct hda_codec *codec, if (nid) snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO); + + /* unmute DAC if it's not assigned to a mixer */ + nid = alc_look_for_out_mute_nid(codec, pin, dac); + if (nid == mix && nid_has_mute(codec, dac, HDA_OUTPUT)) + snd_hda_codec_write(codec, dac, 0, AC_VERB_SET_AMP_GAIN_MUTE, + AMP_OUT_ZERO); } static void alc_auto_init_multi_out(struct hda_codec *codec)