diff options
| author | Takashi Iwai <tiwai@suse.de> | 2008-06-26 14:49:58 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-06-27 08:51:21 +0200 |
| commit | 031005f78c8d0aebc17ddf7a34af9ffd48034d7d (patch) | |
| tree | c1cf93a32ba54e99f3058f7fbf1464fcb6f9dd4d /sound/pci | |
| parent | 4a3b6983232cd296ea260e06461d031f10065d63 (diff) | |
ALSA: hda - disable amp override on non-HP machines
Some machines with Cx5045 seem to have no problem with the volume
over 0dB on NID 0x17. Disable amp overrides for other devices but HP.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_conexant.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index e3df8ac37076..64df8100593d 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -1005,15 +1005,19 @@ static int patch_cxt5045(struct hda_codec *codec) #endif } - /* - * Fix max PCM level to 0 dB - * (originall it has 0x2b steps with 0dB offset 0x14) - */ - snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT, - (0x14 << AC_AMPCAP_OFFSET_SHIFT) | - (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) | - (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) | - (1 << AC_AMPCAP_MUTE_SHIFT)); + 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) + */ + snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT, + (0x14 << AC_AMPCAP_OFFSET_SHIFT) | + (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) | + (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) | + (1 << AC_AMPCAP_MUTE_SHIFT)); + break; + } return 0; } |