| From 8f0f5ff6777104084b4b2e1ae079541c2a6ed6d9 Mon Sep 17 00:00:00 2001 |
| From: Daniel T Chen <crimsun@ubuntu.com> |
| Date: Wed, 28 Apr 2010 18:00:11 -0400 |
| Subject: ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice) |
| |
| From: Daniel T Chen <crimsun@ubuntu.com> |
| |
| commit 8f0f5ff6777104084b4b2e1ae079541c2a6ed6d9 upstream. |
| |
| BugLink: https://launchpad.net/bugs/541802 |
| |
| The OR's hardware distorts at PCM 100% because it does not correspond to |
| 0 dB. Fix this in patch_cxt5045() for all Packard Bell models. |
| |
| Reported-by: Valombre |
| Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> |
| Signed-off-by: Takashi Iwai <tiwai@suse.de> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| sound/pci/hda/patch_conexant.c | 5 +++-- |
| 1 file changed, 3 insertions(+), 2 deletions(-) |
| |
| --- a/sound/pci/hda/patch_conexant.c |
| +++ b/sound/pci/hda/patch_conexant.c |
| @@ -1174,9 +1174,10 @@ static int patch_cxt5045(struct hda_code |
| |
| switch (codec->subsystem_id >> 16) { |
| case 0x103c: |
| + case 0x1631: |
| case 0x1734: |
| - /* HP & Fujitsu-Siemens laptops have really bad sound over 0dB |
| - * on NID 0x17. Fix max PCM level to 0 dB |
| + /* 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) |
| */ |
| snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT, |