Bug#867548: Available for Additional Testing

[Bryan Cebuliak]

Yep at least  for now  it  works  nicely.
On grub boot I did  the  e  thing  and   added
intel_iommu=on,igfx_off
to  the  end  of  the  line  starting with linux

So  how   does  that  get   fixed on  the   Bullseye  update  and  the
live/install image?

On Fri, 2 Jul 2021 at 16:30, Bryan Cebuliak <bryan.cebuliak at gmail.com>
wrote:

> This Haswell related bug sounds very similar and possibly relevant to my
> Haswell machine:
> https://bugzilla.kernel.org/show_bug.cgi?id=60769
> https://bugs.freedesktop.org/show_bug.cgi?id=94804
>
> "...
> Alexander E. Patrakov 2013-10-08 09:55:09 UTC
>
> I have not tried your patch, but found that intel_iommu=on,igfx_off snd_hda_intel.align_buffer_size=1 fixes the problem. Should I still try the patch?..."
> ..."
>
> and
> "...
>
> Alexander E. Patrakov 2016-04-03 06:44:56 UTC
> Haswell HDMI audio users are affected by a longstanding kernel IOMMU bug:
> https://bugzilla.kernel.org/show_bug.cgi?id=60769 . To make sure that
> your report is not a duplicate, please add the following kernel command
> line option and reboot: intel_iommu=on,igfx_off If that alone doesn't help,
> please try: intel_iommu=on,igfx_off snd_hda_intel.align_buffer_size=1
>
> On Fri, 2 Jul 2021 at 14:08, Bryan Cebuliak <bryan.cebuliak at gmail.com>
> wrote:
>
>>
>> Since update  from  Buster to  Bullseye on  hard  disc  and  on  live
>> USB   boot  when  using Built-in Audio Digital Stereo(HDMI 2) on  playback
>> for  Youtube  and  other   video streams I  have   noticed variable
>> skipping of  audio and  video ,  audio  out of   sync, video racing   at
>> fast  forward pace.  This    does  not   happen    when   playback  is  on
>> Built-in  Audio Analog Stereo.  However  I   would  like  audio  to  come
>> through the  HDMI  device [TV].  Using  the  left over old  Debian 10
>> kernel on  the   Bullseye   system still  shows   same   problem.  Ubuntu
>> 20.04  on  the   same   system has  no  issues.  What  is  the  regression
>> from  Debian 10  to   11?  I note  the  configuration Analogue  Stereo
>> Duplex  is   unavailable in  the  Bullseye  version  but  available  and
>> selected in Buster. Changing  to  and  from  this  in Buster causes no
>> problems  in  playback
>> Your  bleeding user
>> Bryan Cebuliak
>>
>> On Tue, 11 Dec 2018 09:55:55 -0500 "Mike Fuller" <
>> fuller.michael.d at gmail.com> wrote:.
>> > Also for what it's worth, hw_parms output during playback on the same
>> > device:
>> >
>> > On Debian 9 / CentOS 7.5 / Ubuntu 16.04:
>> > access: MMAP_INTERLEAVED
>> > format: S16_LE
>> > subformat: STD
>> > channels: 2
>> > rate: 48000 (48000/1)
>> > period_size: 44096
>> > buffer_size: 88192
>> >
>> > On Ubuntu 18.04:
>> > access: MMAP_INTERLEAVED
>> > format: S32_LE
>> > subformat: STD
>> > channels: 2
>> > rate: 48000 (48000/1)
>> > period_size: 1024
>> > buffer_size: 16384
>> >
>> > I don't know why but...this is the only discernable difference I've been
>> > able to find in all my testing. I've been unable to manually set format,
>> > period_size, or buffer-size parameters in Debian's pulseaudio
>> configuration
>> > files (I am pretty sure its just user error).
>> >
>> >
>> >
>>
>
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