[alsa-devel] [PATCH] ALSA: HDA: Pinfix quirk for HP Z200 Workstation

[Takashi Iwai]

At Thu, 23 Jun 2011 14:15:11 +0200,
Takashi Iwai wrote:
> 
> At Thu, 23 Jun 2011 10:28:25 +0200,
> David Henningsson wrote:
> > 
> > On 2011-06-23 09:28, Takashi Iwai wrote:
> > > At Wed, 22 Jun 2011 22:31:07 +0200,
> > > David Henningsson wrote:
> > >>
> > >> BIOS lists the internal speaker as an internal line-out. Change to
> > >> internal speaker + model=auto for better auto-mute capabilities.
> > >>
> > >> Relevant alsa-info is here:
> > >> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/754964/+attachment/2002204/+files/alsa-info.txt
> > >
> > > Thanks, applied now.
> > >
> > > 3.0 should work even without this patch since line-out can be
> > > auto-muted now, but it's still more correct to show the speaker as
> > > speaker (e.g. the right mixer name).  So, it's still good to have
> > > this kind of fix.
> > 
> > I think it was not muted at all, because it is a mono pin, so it does 
> > not show up in the autocfg->line_out_pins array. (Perhaps this should 
> > change in the auto-mute behaviour?)
> 
> Ah, right, these have the real line-out, too.
> (The auto-mute can handle mono as well, but before that, the mono pin
>  has to be parsed properly :)

Looking further, another fix is to change the core-parser code like
below.  Since this doesn't conflict with the pinfix you made, I'll
keep your fix for 3.0 but queue up for 3.1 kernel (in topic/hda
branch).


Takashi

---
Subject: [PATCH] ALSA: hda - Add a workaround for invalid line-out setups

Some BIOS set up the pin config wrongly as line-out although it's
supposed to be a speaker out.  In most cases, though, we can judge
the validity by checking the connection type -- when it's FIXED,
mostly it's an invalid line-out but a speaker.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_codec.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index a2388fc..654dc89 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -4590,7 +4590,7 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
 		unsigned int wid_caps = get_wcaps(codec, nid);
 		unsigned int wid_type = get_wcaps_type(wid_caps);
 		unsigned int def_conf;
-		short assoc, loc;
+		short assoc, loc, conn, dev;
 
 		/* read all default configuration for pin complex */
 		if (wid_type != AC_WID_PIN)
@@ -4600,10 +4600,19 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
 			continue;
 
 		def_conf = snd_hda_codec_get_pincfg(codec, nid);
-		if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
+		conn = get_defcfg_connect(def_conf);
+		if (conn == AC_JACK_PORT_NONE)
 			continue;
 		loc = get_defcfg_location(def_conf);
-		switch (get_defcfg_device(def_conf)) {
+		dev = get_defcfg_device(def_conf);
+
+		/* workaround for buggy BIOS setups */
+		if (dev == AC_JACK_LINE_OUT) {
+			if (conn == AC_JACK_PORT_FIXED)
+				dev = AC_JACK_SPEAKER;
+		}
+
+		switch (dev) {
 		case AC_JACK_LINE_OUT:
 			seq = get_defcfg_sequence(def_conf);
 			assoc = get_defcfg_association(def_conf);
-- 
1.7.5.4