[alsa-devel] [PATCH 036/112] ALSA: hda/realtek - Assign Master mixer when possible
Takashi Iwai
tiwai at suse.de
Tue Jan 8 12:38:29 CET 2013
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 at suse.de>
---
sound/pci/hda/patch_realtek.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 579a35e..c980489 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -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:
--
1.8.0.1
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