Re: Sound broken (first couple of seconds play looping) on Sony Vaio VPX11S1E (HDA, ALC262)

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On Sat, 01 Oct 2022 15:36:01 +0200,
Hans de Goede wrote:
> 
> Hi,
> 
> On 9/29/22 11:38, Takashi Iwai wrote:
> > On Thu, 29 Sep 2022 11:05:47 +0200,
> > Hans de Goede wrote:
> >>
> >> Hi,
> >>
> >> On 9/29/22 08:10, Takashi Iwai wrote:
> >>> On Wed, 28 Sep 2022 18:33:55 +0200,
> >>> Hans de Goede wrote:
> >>>>
> >>>> Hi,
> >>>>
> >>>> On 9/11/22 09:05, Takashi Iwai wrote:
> >>>>> On Sun, 11 Sep 2022 08:15:59 +0200,
> >>>>> Takashi Iwai wrote:
> >>>>>>
> >>>>>> On Sat, 10 Sep 2022 19:52:36 +0200,
> >>>>>> Hans de Goede wrote:
> >>>>>>>
> >>>>>>> Hi All,
> >>>>>>>
> >>>>>>> To test some kernel work (backlight refactor) which I have been doing
> >>>>>>> I have booted Debian Testing with a 6.0 kernel on a Sony Vaio VPX11S1E
> >>>>>>> (which is ancient).
> >>>>>>>
> >>>>>>> I noticed that when tab-completing something in a terminal the
> >>>>>>> terminal bell sound would keep repeating and playing another longer
> >>>>>>> sound sample gets stuck with the first couple of seconds of that
> >>>>>>> sample looping.
> >>>>>>>
> >>>>>>> This is under GNOME3 with pulseaudio as sound server.
> >>>>>>>
> >>>>>>> I accidentally found an interesting workaround if I run:
> >>>>>>>
> >>>>>>> aplay -Dplughw:CARD=MID,DEV=0 /usr/share/sounds/alsa/Front_Left.wav
> >>>>>>>
> >>>>>>> once, then that works properly and after that the problem is gone...
> >>>>>>>
> >>>>>>> Note that this laptop does have only 1 speaker AFAICT.
> >>>>>>>
> >>>>>>> alsa-info output below.
> >>>>>>>
> >>>>>>> I would be happy to test any patches / module-options which might
> >>>>>>> fix this.
> >>>>>>
> >>>>>> Could you check the very latest Linus tree (6.0-rc5)?
> >>>>>> There has been a regression fix for HD-audio, and possibly this might
> >>>>>> be your case.
> >>>>>
> >>>>> And if this doesn't change the behavior, try snoop=0 option for
> >>>>> snd-hda-intel module.
> >>>>
> >>>> Thanks, I've just tried with 6.0-rc6 both with and without snoop=0
> >>>> and neither helps I'm afraid.
> >>>
> >>> Then one another thing could be position_fix option of snd-hda-intel.
> >>> Otherwise we need bisection -- supposing it worked well in the past.
> >>
> >> Thanks, position_fix=1 does the trick (I did not try any of
> >> the other possible values).
> >>
> >> I see there is a snd_pci_quirk position_fix_list, so I guess
> >> I should prepare a patch adding a quirk for this?
> > 
> > I guess this is rather controller issue, so I'd patch for Poulsbo like
> > below.  Let me know if it works, then I'll cook a proper patch.
> > 
> >> Or are some other position_fix values preferred and should
> >> I try those first?
> > 
> > LPIB should suffice, so no further test about the option needed.
> > 
> > 
> > thanks,
> > 
> > Takashi
> > 
> > -- 8< --
> > --- a/sound/pci/hda/hda_intel.c
> > +++ b/sound/pci/hda/hda_intel.c
> > @@ -2547,7 +2547,8 @@ static const struct pci_device_id azx_ids[] = {
> >  	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
> >  	/* Poulsbo */
> >  	{ PCI_DEVICE(0x8086, 0x811b),
> > -	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
> > +	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
> > +	  AZX_DCAPS_POSFIX_LPIB },
> >  	/* Oaktrail */
> >  	{ PCI_DEVICE(0x8086, 0x080a),
> >  	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
> > 
> 
> 
> I can confirm that this does the trick, thanks:
> 
> Reported-and-tested-by: Hans de Goede <hdegoede@xxxxxxxxxx>

Thanks.  I'll submit and merge the proper patch now.


Takashi



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