[alsa-devel] [PATCH RFC] ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582

Anisse Astier anisse at astier.eu
Wed Apr 28 18:05:06 CEST 2010

Add a quirk for all-in-one computer Dell Inspiron One 19 Touch to have proper
HP and Mic support.

Signed-off-by: Anisse Astier <anisse at astier.eu>


I have a Dell 19T all-in-one computer, which has audio problems by
 - speakers works OK
 - no jack detection, no audio in HP
 - internal or external Mic not working

If I specify model=ideapad, the problems go away. But Mic boost appears
as an "Analog Mic Boost Capture Enum" between 0 and 40dB instead of a
normal bar control in alsamixer.

I also tested model=dell-vostro, laptop, and dell-laptop, and they give
worse results. There's no BIOS update available from vendor ATM.

I'm using kernel tree sound-2.6 on branch master.

I'm attaching alsa-info.sh output with and without model=ideapad in addition
to the patch.



 sound/pci/hda/patch_conexant.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/sound/pci/hda/patch_conexant.c
index 509a104..8446273 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -2967,6 +2967,7 @@ static struct snd_pci_quirk cxt5066_cfg_tbl[] = {
 	SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT5066_OLPC_XO_1_5),
 	SND_PCI_QUIRK(0x1028, 0x0402, "Dell Vostro", CXT5066_DELL_VOSTO),
+	SND_PCI_QUIRK(0x1028, 0x0408, "Dell Inspiron One 19T", CXT5066_IDEAPAD),
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "ideapad", CXT5066_IDEAPAD),
 	SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo Thinkpad", CXT5066_THINKPAD),

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