On 02/28/2013 08:21 AM, Takashi Iwai wrote: > 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: sta...@vger.kernel.org [v3.7+] >> BugLink: https://bugs.launchpad.net/bugs/1132562 >> Signed-off-by: David Henningsson <david.hennings...@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.
The test was done on a 3.8 based kernel. Isn't LPIB delay counting enabled there as well? (Alsa-info is here: https://launchpadlibrarian.net/132247367/AlsaInfo.txt ) > > > 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 >> > -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1132562 Title: [Acer AO751h] choppy sounds, lots of rewinds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1132562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs