Re: Conexant CX20549 (Venice) PCM volume to loud

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Hi,

On Wed, Nov 25, 2009 at 11:41 AM, Cristian KLEIN <cristiklein@xxxxxxxxx> wrote:
> Could anybody please have a look at this bug:
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4792

I've spun the attached patch against current sound-2.6 HEAD. Thanks
for chasing this!

-Dan
From 767036ef9f1c05fe2fc0e9fa226b4f33076e9703 Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun@xxxxxxxxxx>
Date: Wed, 25 Nov 2009 18:27:20 -0500
Subject: [PATCH] ALSA: hda: Fix max PCM level to 0 dB for Fujitsu-Siemens laptops using CX20549 (Venice)

BugLink: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4792

Cristian reported that these models have really bad sound above 6 dB
and proposed the original patch. I've updated the comment to reflect
this change.

Signed-off-by: Daniel T Chen <crimsun@xxxxxxxxxx>
Reported-by: Cristian Klein
---
 sound/pci/hda/patch_conexant.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 36dd5a6..60810ba 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -1171,9 +1171,10 @@ static int patch_cxt5045(struct hda_codec *codec)
 
 	switch (codec->subsystem_id >> 16) {
 	case 0x103c:
-		/* HP laptop has a really bad sound over 0dB on NID 0x17.
-		 * Fix max PCM level to 0 dB
-		 * (originall it has 0x2b steps with 0dB offset 0x14)
+	case 0x1734:
+		/* HP & Fujitsu-Siemens laptops have really bad sound over 0dB
+		 * on NID 0x17. Fix max PCM level to 0 dB
+		 * (originally it has 0x2b steps with 0dB offset 0x14)
 		 */
 		snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
 					  (0x14 << AC_AMPCAP_OFFSET_SHIFT) |
-- 
1.6.3.3

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