git.ipfire.org Git - thirdparty/kernel/stable-queue.git/blob

   1 From 0b587fc4d35afb1bc0fc3d890084bb14c78372dc Mon Sep 17 00:00:00 2001
   2 From: Daniel T Chen <crimsun@ubuntu.com>
   3 Date: Wed, 25 Nov 2009 18:27:20 -0500
   4 Subject: ALSA: hda: Fix max PCM level to 0 dB for Fujitsu-Siemens laptops using CX20549 (Venice)
   5
   6 From: Daniel T Chen <crimsun@ubuntu.com>
   7
   8 commit 0b587fc4d35afb1bc0fc3d890084bb14c78372dc upstream.
   9
  10 BugLink: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4792
  11
  12 Cristian reported that these models have really bad sound above 6 dB
  13 and proposed the original patch. I've updated the comment to reflect
  14 this change.
  15
  16 Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
  17 Reported-by: Cristian Klein
  18 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  19 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
  20
  21 ---
  22  sound/pci/hda/patch_conexant.c |    7 ++++---
  23  1 file changed, 4 insertions(+), 3 deletions(-)
  24
  25 --- a/sound/pci/hda/patch_conexant.c
  26 +++ b/sound/pci/hda/patch_conexant.c
  27 @@ -1175,9 +1175,10 @@ static int patch_cxt5045(struct hda_code
  28
  29         switch (codec->subsystem_id >> 16) {
  30         case 0x103c:
  31 -               /* HP laptop has a really bad sound over 0dB on NID 0x17.
  32 -                * Fix max PCM level to 0 dB
  33 -                * (originall it has 0x2b steps with 0dB offset 0x14)
  34 +       case 0x1734:
  35 +               /* HP & Fujitsu-Siemens laptops have really bad sound over 0dB
  36 +                * on NID 0x17. Fix max PCM level to 0 dB
  37 +                * (originally it has 0x2b steps with 0dB offset 0x14)
  38                  */
  39                 snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
  40                                           (0x14 << AC_AMPCAP_OFFSET_SHIFT) |