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ALSA: hda/idt - Fix power-map for speaker-pins with some HP laptops

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BIOS on some HP laptops don't set the speaker-pins as fixed but expose
as jacks, and this confuses the driver as if these pins are
jack-detectable.  As a result, the machine doesn't get sounds from
speakers because the driver prepares the power-map update via jack
unsol events which never come up in reality.  The bug was introduced
in some time in 3.2 for enabling the power-mapping feature.

This patch fixes the problem by replacing the check of the persistent
power-map bits with a proper is_jack_detectable() call.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43240

Cc: <stable@vger.kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-05-15 08:07:31 +02:00
parent 9ea3356d79
commit b0791dda81
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sound/pci/hda/patch_sigmatel.c
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@ -4415,9 +4415,9 @@ static int stac92xx_init(struct hda_codec *codec)
def_conf = get_defcfg_connect(def_conf);
/* skip any ports that don't have jacks since presence
* detection is useless */
if (def_conf != AC_JACK_PORT_COMPLEX) {
if (def_conf != AC_JACK_PORT_NONE)
stac_toggle_power_map(codec, nid, 1);
if (def_conf != AC_JACK_PORT_NONE &&
!is_jack_detectable(codec, nid)) {
stac_toggle_power_map(codec, nid, 1);
continue;
}
if (enable_pin_detect(codec, nid, STAC_PWR_EVENT)) {