The microphone input on the back panel (pink connector) stopped operating correctly after an upgrade from 2.6.35 to 2.6.38; the actual problem manifests itself as a lack of microphone bias voltage (VREF_HIZ) on node 0x17. With AD1988_6STACK_DIG the maximum bias voltage (VREF_80) is applied and the headset operates correctly.
Signed-off-by: Tony Vroon tony@linx.net Tested-by: Doug Redlich pbrigade@nxltech.net
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index f1b3875..696ac25 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -3159,6 +3159,7 @@ static const struct snd_pci_quirk ad1988_cfg_tbl[] = { SND_PCI_QUIRK(0x1043, 0x81ec, "Asus P5B-DLX", AD1988_6STACK_DIG), SND_PCI_QUIRK(0x1043, 0x81f6, "Asus M2N-SLI", AD1988_6STACK_DIG), SND_PCI_QUIRK(0x1043, 0x8277, "Asus P5K-E/WIFI-AP", AD1988_6STACK_DIG), + SND_PCI_QUIRK(0x1043, 0x82c0, "Asus M3N-HT Deluxe", AD1988_6STACK_DIG), SND_PCI_QUIRK(0x1043, 0x8311, "Asus P5Q-Premium/Pro", AD1988_6STACK_DIG), {} };