At Thu, 28 Feb 2013 11:05:20 +0100, David Henningsson wrote: > > On 02/28/2013 10:29 AM, Takashi Iwai wrote: > > At Thu, 28 Feb 2013 09:49:23 +0100, > > David Henningsson wrote: > >> > >> 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: [email protected] [v3.7+] > >>>> BugLink: https://bugs.launchpad.net/bugs/1132562 > >>>> Signed-off-by: David Henningsson <[email protected]> > >>> > >>> 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? > > > > No, it was added fairly recently. > > I didn't put Cc to stable for the commit > > f748abcc5bf62de007019d841f7caba81cc3d673. If this is confirmed to > > work in general for Poulsbo, we can merge to stable. > > > > But, overall I wonder why POSFIX_LPIB is needed for this device. > > In the recent kernels up to 3.8, LPIB is used as default for Poulsbo. > > According to "git describe --contains", this commit was added to > v3.8-rc6, and released into Ubuntu before this bug was filed.
Ah, right, I forgot it was included in 3.8-final... > Probably > this commit is was what caused the regression then, and so the cc to > stable should be to 3.8+, not 3.7+. Possible. We seem have no reliable generic solution for Poulsbo, unfortunately. But, POSFIX_LPIB is most likely buggy in the regard of capture. Can the tester check whether the recording really works, also without pulseaudio, too?) I guess POSFIX_COMBO would work better for Poulsbo. (Oh I dropped AZX_DCAPS_POSFIX_COMBO, and we may need to revive in in bit 24) > > > Takashi > > > > > > Takashi > > Have you cloned yourself, or is it just a race condition? :-) It must be a dejavu, aka a bug, due to a lack of caffeine. Takashi -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
