From 2acc9dcb609427a20463e529ef552dd93b469847 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 9 Jan 2009 16:57:14 +0100 Subject: [PATCH] ALSA: hda - Fix silent headphone output on Panasonic CF-74 CF-74 does the headphone/speaker switching on hardware, thus the driver shouldn't do any software-toggling of pins. Otherwise it results in a silent headphone output. This patch simply resets the hp_detect flag to fix the problem. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 0e6fc56fa378..89ff916a0ed1 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4467,6 +4467,12 @@ static int patch_stac9200(struct hda_codec *codec) return err; } + /* CF-74 has no headphone detection, and the driver should *NOT* + * do detection and HP/speaker toggle because the hardware does it. + */ + if (spec->board_config == STAC_9200_PANASONIC) + spec->hp_detect = 0; + codec->patch_ops = stac92xx_patch_ops; return 0; -- 2.20.1