ALSA: hda - Fix pop noise in headphones on S3 for Asus X55A, X55V
David Henningsson [Thu, 9 Aug 2012 08:56:12 +0000 (10:56 +0200)]
To turn off pin control for the pin was tested, and helped against
this issue.

BugLink: https://bugs.launchpad.net/bugs/1034779
Tested-by: Chih-Hsyuan Ho <chih.ho@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_via.c

index 80d90cb..4307717 100644 (file)
@@ -1752,6 +1752,14 @@ static int via_suspend(struct hda_codec *codec)
 {
        struct via_spec *spec = codec->spec;
        vt1708_stop_hp_work(spec);
+
+       if (spec->codec_type == VT1802) {
+               /* Fix pop noise on headphones */
+               int i;
+               for (i = 0; i < spec->autocfg.hp_outs; i++)
+                       snd_hda_set_pin_ctl(codec, spec->autocfg.hp_pins[i], 0);
+       }
+
        return 0;
 }
 #endif