From 0ebf9e3692d640917fb792a7494d05e1f5b1058f Mon Sep 17 00:00:00 2001 From: Daniel T Chen Date: Mon, 10 May 2010 21:50:04 +0200 Subject: [PATCH] ALSA: hda: Fix 0 dB for Lenovo models using Conexant CX20549 (Venice) Reference: http://mailman.alsa-project.org/pipermail/alsa-devel/2010-May/027525.html As reported on the mailing list, we also need to cap to the 0 dB offset for Lenovo models, else the sound will be distorted. Reported-and-Tested-by: Tim Starling Cc: Signed-off-by: Daniel T Chen Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_conexant.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index d8213e2..feabb44 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -1197,9 +1197,10 @@ static int patch_cxt5045(struct hda_codec *codec) case 0x103c: case 0x1631: case 0x1734: - /* HP, Packard Bell, & 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) + case 0x17aa: + /* HP, Packard Bell, Fujitsu-Siemens & Lenovo 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) | -- 1.8.2.3