Takashi Iwai 3ffea7c7b3 ALSA: hda/idt - Fix power-map for speaker-pins with some HP laptops
commit b0791dda813c179e539b0fc1ecd3f5f30f2571e2 upstream.

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

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-21 10:46:17 -07:00
..
2012-03-02 08:59:23 +01:00