[pulseaudio-tickets] [Bug 84154] PA v5.0 does not play "pps" file (LibreOffice)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84154

--- Comment #23 from David Henningsson <david.henningsson at canonical.com> ---
(In reply to Alex from comment #22)
> (In reply to comment #21)
> > So when you're NOT running PA, the result is silence. This can't be a
> > problem with PA.
> > 
> > So far, I think everything points to that this is not a problem with PA,
> > hence this bug tracker is not the right place to resolve your issue, as the
> > people here are not LibreOffice experts.
> 
> Hi David,
> 
> I'm missing your logic.
> Fact,
> 
> - On 64-bit Ubuntu system:
> LO (v4.2.6.3) does NOT generate sound
>  UNLESS PA (v4.0) is running.
> 
> - On 32-bit BLFS system:
> LO (same v4.2.6.3) does NOT generate sound
>  WHEN PA (v5.0) is running.
> _As an aside_ (just to make the logic tighter),
> LO (same v4.2.6.3) does NOT generate sound
>  WHEN PA (v5.0) is NOT running.
>  
> This Bug submission is titled
> "PA _v5.0_ does not play "pps" file (LibreOffice)"
> on a _32-bit_ system and _same_ LO (v4.2.6.3).
> 
> ------------------------------------------------------------
> My _Ubuntu_ references have been just that, references for
> comparison (and hopefully help in resolving this issue) only.
> 
> The three variables I see present/active for the Bug submission,
>  32 bits (vs 64 bits)
>  PA (v5.0 vs v4.0)
>  _Possible_ LO different behavior (on 32 bits vs 64 bits)
>  
> may be in play, one, two or all three in combination.

You're missing the fact that all distributions (except possibly LFS?), add
patches to their packages, mostly to fix bugs. E g, Ubuntu's LibreOffice
contains ~50 patches on top of 4.2.6.3, as you can see here:

http://anonscm.debian.org/cgit/pkg-openoffice/libreoffice.git/tree/patches?h=ubuntu-trusty-4.2

> Why you have so readily chosen to "logically" blame only
> one of them, LibreOffice, is beyond me.

I did so because the relevant log showed that LibreOffice did not try to
connect to PulseAudio. Which does not rule out PulseAudio completely, just
saying that it is more likely that LibreOffice is at fault here. 

Also, "pulsesink probe", as I saw in another log, sounds very gstreamer-ish. If
LibreOffice uses the gstreamer library to play back audio through Pulseaudio,
then GStreamer could also be at fault here.

> while you have shown no enthusiasm in answering my question (Comment #20):
> 
> Why has Ubuntu's PA been sticking with v1.4 [since March]?

v1.4 of what?

> (especially when Ubuntu makes a big point of using the latest
> (and the greatest) versions for their packages.)

I'd say that Ubuntu's policy has shifted a bit in recent years towards more
stability and less latest-and-greatest, but that is not really on topic here,
either.

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