On Tue, 04 May 2021 09:39:17 +0200, Hui Wang wrote:
Without this change, the DAC ctl's name could be changed only when the machine has both Speaker and Headphone, but we met some machines which only has Lineout and Headhpone, and the Lineout and Headphone share the Audio Mixer0 and DAC0, the ctl's name is set to "Front".
On most of machines, the "Front" is used for Speaker only or Lineout only, but on this machine it is shared by Lineout and Headphone, This introduces an issue in the pipewire and pulseaudio, suppose users want the Headphone to be on and the Speaker/Lineout to be off, they could turn off the "Front", this works on most of the machines, but on this machine, the "Front" couldn't be turned off otherwise the headphone will be off too. Here we do some change to let the ctl's name change to "Headphone+LO" on this machine, and pipewire and pulseaudio already could handle "Headphone+LO" and "Speaker+LO". (https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/747)
BugLink: http://bugs.launchpad.net/bugs/804178 Signed-off-by: Hui Wang hui.wang@canonical.com
I'm fine to take the change, but wouldn't this break anything else in PA? Once when I get a positive answer, I'll apply it.
thanks,
Takashi
sound/pci/hda/hda_generic.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 3998e1771805..b638fc2ef6f7 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -1204,11 +1204,17 @@ static const char *get_line_out_pfx(struct hda_codec *codec, int ch, *index = ch; return "Headphone"; case AUTO_PIN_LINE_OUT:
/* This deals with the case where we have two DACs and* one LO, one HP and one Speaker */if (!ch && cfg->speaker_outs && cfg->hp_outs) {bool hp_lo_shared = !path_has_mixer(codec, spec->hp_paths[0], ctl_type);bool spk_lo_shared = !path_has_mixer(codec, spec->speaker_paths[0], ctl_type);
/* This deals with the case where one HP or one Speaker or* one HP + one Speaker need to share the DAC with LO*/if (!ch) {bool hp_lo_shared = false, spk_lo_shared = false;if (cfg->speaker_outs)spk_lo_shared = !path_has_mixer(codec,spec->speaker_paths[0], ctl_type);if (cfg->hp_outs)hp_lo_shared = !path_has_mixer(codec, spec->hp_paths[0], ctl_type); if (hp_lo_shared && spk_lo_shared) return spec->vmaster_mute.hook ? "PCM" : "Master"; if (hp_lo_shared)-- 2.25.1