At Wed, 25 Nov 2009 18:37:36 -0500, Daniel Chen wrote:

Hi,

On Wed, Nov 25, 2009 at 11:41 AM, Cristian KLEIN cristiklein@gmail.com 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!

Thanks, applied now.

Takashi

-Dan [2 0001-ALSA-hda-Fix-max-PCM-level-to-0-dB-for-Fujitsu-Sieme.patch <text/x-diff; US-ASCII (base64)>] From 767036ef9f1c05fe2fc0e9fa226b4f33076e9703 Mon Sep 17 00:00:00 2001 From: Daniel T Chen crimsun@ubuntu.com 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@ubuntu.com 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