From eb33ccf7637c34b2c95dbcca8b2e4cab76a52949 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 24 Jun 2013 16:18:10 +0200 Subject: [PATCH] ALSA: hda - Use auto_mute_via_amp=1 for VT1708 We've got bug report wrt many machines with VT1708 (e.g. IBM POS machines) showing the broken auto-mute behavior. It turned out that the problem is that the pin control values of the speaker and line-out pins are completely ignored. As a workaround, let's use the newly introduced feature of the generic parser, to control the mute via amp on pins. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_via.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index dcebf3cb18de..e2481baddc70 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -741,6 +741,8 @@ static int patch_vt1708(struct hda_codec *codec) /* don't support the input jack switching due to lack of unsol event */ /* (it may work with polling, though, but it needs testing) */ spec->gen.suppress_auto_mic = 1; + /* Some machines show the broken speaker mute */ + spec->gen.auto_mute_via_amp = 1; /* Add HP and CD pin config connect bit re-config action */ vt1708_set_pinconfig_connect(codec, VT1708_HP_PIN_NID); -- 2.39.5