From: David Henningsson <david.henningsson@canonical.com>
To: tiwai@suse.de, alsa-devel@alsa-project.org
Cc: 825709@bugs.launchpad.net, "3.0+" <stable@kernel.org>,
David Henningsson <david.henningsson@canonical.com>
Subject: [PATCH] ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device
Date: Mon, 12 Dec 2011 14:01:17 +0800 [thread overview]
Message-ID: <1323669677-7832-1-git-send-email-david.henningsson@canonical.com> (raw)
For the Asus 1101HA, reporting position by reading the DMA position
buffer map seems unstable and often wrong. The reporter says that
position_fix=LPIB works much better (although not 100%, but this is
probably due to other issues).
The controller chip is an Intel Poulsbo 8086:811b (rev 07) controller,
and complete alsa-info is available here:
https://launchpadlibrarian.net/86691768/alsa-info.txt.1TNwyE5Ea7
Cc: stable@kernel.org (3.0+)
BugLink: http://bugs.launchpad.net/bugs/825709
Tested-by: Stefano Lodi
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
---
sound/pci/hda/hda_intel.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index d1582dd..0746ab4 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2506,6 +2506,7 @@ static struct snd_pci_quirk position_fix_list[] __devinitdata = {
SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1043, 0x83ce, "ASUS 1101HA", POS_FIX_LPIB),
SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
--
1.7.5.4
next reply other threads:[~2011-12-12 6:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 6:01 David Henningsson [this message]
2011-12-12 9:48 ` [PATCH] ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device Takashi Iwai
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