linux-kernel - Re: [BISECTED] 2.6.36 regression for ALC892

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Date:	Fri, 26 Nov 2010 15:34:03 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Andrey Rahmatullin <wrar@...r.name>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [BISECTED] 2.6.36 regression for ALC892

At Fri, 26 Nov 2010 19:27:37 +0500,
Andrey Rahmatullin wrote:
> 
> On Fri, Nov 26, 2010 at 10:28:01AM +0100, Takashi Iwai wrote:
> > Try the very latest alsa-driver snapshot or sound-2.6 git tree.
> > You should have an individual "Headphone" volume as well.
> Yes, that makes difference: I was able to use the headphones after raising
> that new volume.

OK, then this should be the patch below.  Care to apply it to 2.6.36
and check whether it gives the same result?

If it works, we'll need to push it to stable tree, too.


thanks,

Takashi

===
>From cc1c452e509aefc28f7ad2deed75bc69d4f915f7 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@...onical.com>
Date: Wed, 24 Nov 2010 14:17:47 +0100
Subject: [PATCH] ALSA: HDA: Add an extra DAC for Realtek ALC887-VD

The patch enables ALC887-VD to use the DAC at nid 0x26,
which makes it possible to use this DAC for e g Headphone
volume.

Signed-off-by: David Henningsson <david.henningsson@...onical.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 sound/pci/hda/patch_realtek.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8f7530f..b0e6b8b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -18997,6 +18997,8 @@ static inline hda_nid_t alc662_mix_to_dac(hda_nid_t nid)
 		return 0x02;
 	else if (nid >= 0x0c && nid <= 0x0e)
 		return nid - 0x0c + 0x02;
+	else if (nid == 0x26) /* ALC887-VD has this DAC too */
+		return 0x25;
 	else
 		return 0;
 }
@@ -19005,7 +19007,7 @@ static inline hda_nid_t alc662_mix_to_dac(hda_nid_t nid)
 static hda_nid_t alc662_dac_to_mix(struct hda_codec *codec, hda_nid_t pin,
 				   hda_nid_t dac)
 {
-	hda_nid_t mix[4];
+	hda_nid_t mix[5];
 	int i, num;
 
 	num = snd_hda_get_connections(codec, pin, mix, ARRAY_SIZE(mix));
-- 
1.7.3.1

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