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Subject[patch 018/164] ALSA: hda: Use LPIB for Acer Aspire 5110
2.6.33-stable review patch.  If anyone has any objections, please let me know.


From: Daniel T Chen <>

commit 7a68be94e22e7643038726ebc14360752a91800b upstream.


Symptom: on a significant number of hardware, booting from a live cd
results in capture working correctly, but once the distribution is
installed, booting from the install results in capture not working.

Test case: boot from Ubuntu 10.04 LTS live cd; capture works correctly.
Install to HD and reboot; capture does not work. Reproduced with 2.6.32
mainline build (vanilla compile).

Resolution: add SSID for Acer Aspire 5110 to the position_fix quirk
table, explicitly specifying the LPIB method.

I'll be sending additional patches for these SSIDs as bug reports are

Reported-and-Tested-By: Leo
Signed-off-by: Daniel T Chen <>
Signed-off-by: Takashi Iwai <>
Signed-off-by: Greg Kroah-Hartman <>

sound/pci/hda/hda_intel.c | 1 +
1 file changed, 1 insertion(+)

--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2263,6 +2263,7 @@ static int azx_dev_free(struct snd_devic
* white/black-listing for position_fix
static struct snd_pci_quirk position_fix_list[] __devinitdata = {
+ SND_PCI_QUIRK(0x1025, 0x009f, "Acer Aspire 5110", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),

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