At Thu, 28 Feb 2013 08:18:30 +0100, David Henningsson wrote:
The user reports a regression (choppy audio), and that position_fix=1 (or position_fix=4) fixes the issue.
This is a Poulsbo controller (8086:811b (rev 07)), so might be worth checking if other Poulsbo machines suffer from the same bug.
Cc: stable@vger.kernel.org [v3.7+] BugLink: https://bugs.launchpad.net/bugs/1132562 Signed-off-by: David Henningsson david.henningsson@canonical.com
Please check whether the latest sound git tree works as is. We enabled the LPIB delay counting for Poulsbo there, and it may fix most cases.
Takashi
sound/pci/hda/hda_intel.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 4cea6bb6..3505f1e 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -3114,6 +3114,7 @@ static bool check_hdmi_disabled(struct pci_dev *pci)
- white/black-listing for position_fix
*/ static struct snd_pci_quirk position_fix_list[] = {
- SND_PCI_QUIRK(0x1025, 0x0244, "Acer AO751h", 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(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
-- 1.7.9.5