pulse audio update broke sound output

[Bret Busby]

On 8/4/24 19:14, Bret Busby wrote:
> On 8/4/24 19:10, Bret Busby wrote:
>> On 8/4/24 18:13, Oliver Grawert wrote:
>>> Hi,
>>> Am Samstag, dem 06.04.2024 um 19:29 +0800 schrieb Bret Busby:
>>>> Hello.
>>>>
>>>> I am running Linux Mint 21.3 , which runs on the base system of
>>>> Ubuntu
>>>> 22.04.x, which had a recent pulse-audio update, and I have
>>>> consequently
>>>> lost a channel of sound through the headphones.
>>>
>>> you should really ask your mint questions in a mint forum, nobody here
>>> knows what mint does to the audio stack underneath their own desktop
>>> they implement.
>>>
>>> they tend to apply their own configs and (not sure that is still true
>>> but it was for the last releases of their hybrid distro) replace
>>> certain ubuntu packages with their own from their own archive.
>>>
>>> nobody here will be able to tell what they changed so pretty please ask
>>> the people that actually know which are the mint developers...
>>>
>>> also note that ubuntu uses pipewire and not pulseaudio since 22.04
>>> onwards ...
>>>
>>> ciao
>>>     oli
>>>
>>>
>>
>> Hello.
>>
>> I had understood that the only things that Linux Mint used from their 
>> own repository, were the Firefox package and Linux Mint GUI stuff, 
>> and, possibly, "flatpack" stuff.
>>
>> The reason that I posted the query to this list, is that the text 
>> displayed at the URL for the change that I cited, corresponds to the 
>> changelog displayed from synaptic, from the particular installation, 
>> showing that the package change applies to the Ubuntu package, from 
>> the repository for Ubuntu 22.04, and, the changelog for the package, 
>> shows it to explicitly be a Ubuntu matter, with the person who made 
>> the package update, being at canonical.com.
>>
> 
> And, whilst the person who made the change, is at canonical.com, the 
> person who signed (authorised?) the change, is at ubuntu.com

"
[ubuntu/jammy-updates] pulseaudio 1:15.99.1+dfsg1-1ubuntu2.2 (Accepted)
Timo Aaltonen tjaalton at ubuntu.com
Wed Mar 27 09:19:35 UTC 2024

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pulseaudio (1:15.99.1+dfsg1-1ubuntu2.2) jammy; urgency=medium

   [ Hui Wang ]
   * d/p/0001-backend-native-Handle-multi-AT-commands-in-a-buffer.patch
     - Lenovo Thinkplus XT99 bluetooth headset supports mSBC and could
       issue multi AT commands when negotiating with pulseaudio, but
       pulseaudio couldn't handle multi AT commands when processing one
       buffer, this makes the HFP/HSP mode not work, cherry pick an
       upstream commit to fix this issue. (LP: #2051895)

Date: 2024-03-12 13:41:09.635523+00:00
Changed-By: Hui Wang <hui.wang at canonical.com>
Signed-By: Timo Aaltonen <tjaalton at ubuntu.com>
https://launchpad.net/ubuntu/+source/pulseaudio/1:15.99.1+dfsg1-1ubuntu2.2
-------------- next part --------------
Sorry, changesfile not available.
"

> 
>> As this mailing list does not allow screenshots to be posted, due in 
>> part, to the 40kB message size limit, I can send to you, off-list, the 
>> applicable screenshots, if you want, to show that the particular 
>> pulse-audio change is from the Ubuntu 22.04 repository, rather than 
>> from the Linux Mint repository.
>>
>> However, and, I had not posted this to the list, due to the lack of 
>> response to my query, before the above message, but, during the course 
>> of last night, I watched a couple of online youtube videos, and, a 
>> downloaded video, using Celluloid, to find whether the problem still 
>> existed, and, the problem with the loss of the sound channel, appears 
>> to have disappeared, indicating to me, that the problem appeared to be 
>> "a temporary glitch" with the software update, and, the system appears 
>> to have self-healed.
>>
>> I would not have posted the query to the list, if I had not 
>> conclusively believed that the problem came from an update from within 
>> the Ubuntu 22.04 repository, making it a Ubuntu problem, which is, in 
>> part, also why I asked, in my initial post about the problem, whether 
>> anyone else had also experienced the problem, consequential to the 
>> update. If anyone else had responded, with a statement indicating 
>> whether they had experienced the same problem, with either/both of 
>> Linux Mint 21.3 or Ubuntu 22.04, that could have been helpful; 
>> especially, if experienced with one but not the other, of the two 
>> operating systems.
>>
>> I am aware that this list is for Ubuntu problems, and, not for 
>> problems specific to Linux Mint, but, given that Linux Mint uses 
>> Ubuntu Linux as its underlying operating system (except for LMDE), I 
>> believe that a problem that arises from the Ubuntu underlying system, 
>> is approproate to be queried on this list.
>>
>> Of course, if Linux Mint provided and supported an official support 
>> mailing list, or, that a sufficiently populated and active, Linux Mint 
>> users mailing list would be used by Linux Mint users (especially, 
>> including Linux Mint users more knowledgeable than me), then, that 
>> would be an appropriate first point of contact for such problems, but, 
>> in the absence of either of those, and, emphatically, given that the 
>> issue came from a Ubuntu repository, then, the next best option, is 
>> this list, to deal with Ubuntu-originating problems. Well, to me, that 
>> seems logical, anyway.
>>
>> ....
>> Bret Busby
>> Armadale
>> Western Australia
>> (UTC+0800)
>> .................
>>
>>
> 

The post by Oliver, states

"
 >>> also note that ubuntu uses pipewire and not pulseaudio since 22.04
 >>> onwards ...
"

I do know know (due to differences in language usage) whether that is 
intended to mean that pipewire replaced pulseaudio, from (inclusive) 
22.04 onward, or, after (exclusive) 22.04, but, the above text shows 
that pulseaudio, including the cited change to pulseaudio (approved "Wed 
Mar 27 09:19:35 UTC 2024"), is in the Ubuntu 22.04 repository.

....
Bret Busby
Armadale
Western Australia
(UTC+0800)
.................