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ALSA: hda/realtek - Assign Master mixer when possible

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There are a few more cases where we can assign "Master" mixer element
safely, e.g. when a single DAC is used in the whole output paths.

Also, when vmaster hook is present, avoid "Master" but assign "PCM"
instead.  Otherwise vmaster hook won't work properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-12-18 17:33:04 +01:00
parent 3bd7b644d0
commit 52a8efab10
1 changed files with 8 additions and 1 deletions
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9
sound/pci/hda/patch_realtek.c
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@ -2306,7 +2306,14 @@ static const char *alc_get_line_out_pfx(struct alc_spec *spec, int ch,
*index = 0;
if (cfg->line_outs == 1 && !spec->multi_ios &&
!cfg->hp_outs && !cfg->speaker_outs && can_be_master)
return "Master";
return spec->vmaster_mute.hook ? "PCM" : "Master";
/* if there is really a single DAC used in the whole output paths,
* use it master (or "PCM" if a vmaster hook is present)
*/
if (spec->multiout.num_dacs == 1 && !spec->mixer_nid &&
!spec->multiout.hp_out_nid[0] && !spec->multiout.extra_out_nid[0])
return spec->vmaster_mute.hook ? "PCM" : "Master";
switch (cfg->line_out_type) {
case AUTO_PIN_SPEAKER_OUT: