BugLink: http://launchpad.net/bugs/640254 In some cases a magic processing coefficient is needed to enable the internal speaker on Dell M101z. According to Realtek, this processing coefficient is only present on ALC269vb. Signed-off-by: David Henningsson <david.henningsson@xxxxxxxxxxxxx> -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic
>From 363739d6b5eefb44a0cbbf44c390f8fcd01a6e58 Mon Sep 17 00:00:00 2001 From: David Henningsson <david.henningsson@xxxxxxxxxxxxx> Date: Thu, 16 Sep 2010 10:07:53 +0200 Subject: [PATCH] ALSA: HDA: Enable internal speaker on Dell M101z BugLink: http://launchpad.net/bugs/640254 In some cases a magic processing coefficient is needed to enable the internal speaker on Dell M101z. According to Realtek, this processing coefficient is only present on ALC269vb. Cc: stable@xxxxxxxxxx Signed-off-by: David Henningsson <david.henningsson@xxxxxxxxxxxxx> --- sound/pci/hda/patch_realtek.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index ab2947d..2063d0f 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -14671,6 +14671,7 @@ static int alc269_resume(struct hda_codec *codec) enum { ALC269_FIXUP_SONY_VAIO, + ALC269_FIXUP_DELL_M101Z, }; static const struct alc_fixup alc269_fixups[] = { @@ -14680,11 +14681,20 @@ static const struct alc_fixup alc269_fixups[] = { {} } }, + [ALC269_FIXUP_DELL_M101Z] = { + .verbs = (const struct hda_verb[]) { + /* Enables internal speaker */ + {0x20, AC_VERB_SET_COEF_INDEX, 13}, + {0x20, AC_VERB_SET_PROC_COEF, 0x4040}, + {} + } + }, }; static struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x104d, 0x9071, "Sony VAIO", ALC269_FIXUP_SONY_VAIO), SND_PCI_QUIRK(0x104d, 0x9077, "Sony VAIO", ALC269_FIXUP_SONY_VAIO), + SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z), {} }; -- 1.7.1
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