Loss of sound after recent updates.(solved)plus.

[galeforce]

This started with Linux Mint Mate 19.3 after some updates to the firmware. Was fine before recent updates.
Have looked on line and this appears to have been a problem in 2016.
Trying suggested fix from that time did not accomplish anything, did not restore system sounds and controls for things like speakers and microphones.
The Test Speakers is disappeared.
This also just occurred today after taking the chance and performing the recent 20.2 Mint Mate update on an HP laptop, sounds were disappeared again.
System sounds remained on laptop 20.2 but not in 19.3.
You tube is video only on both systems.
Have not updated this Linux Mint Mate 20.2 and figure there is something in the updates, either kernel or firmware or Mesa which is killing sounds.
Game sounds still appears to work.
There's a noticeable difference in the devices shown.
This system which is unaffected shows Builtin while the other two systems show HD intel PCH.
Laptop hasn't used the System Reports extended codecs but the 19.3 had.

Recent update of pulse control and Kernel changed nothing in the laptop, still no speaker control.
No selection of builtin Realtech analog device only HDA intel PCH, do have a single system sound, youtube video only.

[1000]

Can I see output of command ?

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 inxi -Fxxxrz

viewtopic.php?f=90&t=318644

Maybe problem exist with PulseAudio
but you can check
1. Create new user account and check if sound working.

If working, on old user account you need remove config file

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rm  /home/user_name/.pulse-cookie

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rm -rf /home/user_name/.config/pulse

Reboot. After reboot pulse audio should create new config files and sound should work.

2. After update, pulse audio sometimes resets the default settings which are wrong.
I mean the wrong sound card.
In the settings check that the card / output is the same.

If you don't have Pulse Audio settings

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 dpkg -S /usr/bin/pavucontrol
pavucontrol: /usr/bin/pavucontrol

You need install pavucontrol

3. In theory, you don't need pulseaudio.
Pulse audio it is used for audio mixing instead QjackCtl.
I mean you can use Alsa, but some apps may not working without Pulse audio
Maybe exist plugin on Ubuntu for Alsa which can workaround this problem - I don't know.
How to switch Pulse audio to Alsa or Alsa to Pulse audio.
I do not know.

4. Sometimes settings inside pulse audio not working with some hardware.
You must read pulseaudio documentation .
https://www.freedesktop.org/wiki/Softwa ... ugReports/
Check also https://fedoraproject.org/wiki/How_to_d ... o_problems

Check also ( how debug )
https://askubuntu.com/questions/201780/ ... ulse-audio

[galeforce]

@1000 - Your recommendations don't appear to apply or seem slightly wrong.
What is missing is the recognition of the Analog Stereo Output and Input.
A failure to recognize the Builtin Reatech audio.
Hd Intel Pch does not function on either my laptop or desktop even when the desktop sees other analog devices.
The Analog devices work on the desktop with out the most recent updates audio updates.
Best guess is a failure to recognize or provide for the Analog devices.
Clarification: no YouTube sound or network sound, System sound volume keeps muting.
What user account are you referring to?

[1000]

What user account are you referring to?

You can create new user account with app

Code: Select all

users-admin 

After checking the sound, you can log in to the old account and delete the new account.

[galeforce]

@1000 - created a new user account with all the permissions and there is still no change.
System sounds do not hold (warnings, etc.) and no control or speaker tests.
In checking using lshw, there is mention of the HD Intel PCH for the onboard sound cards (builtin) but not shown in control panel.
I'm guessing there's no support in either Firmware update or sound softwares.
Multimedia Audio Device - Sunrise Point - LP HD Audio, version 21, 64bits (Intel) - Driver: snd_hda_intel (shown by both lshw and inxi)

Using a live Ghost BSD CD previously the builtin Real tech card was shown (2 - one worked the other sis not) plus the HD Intel PCD did not as well.
No display of speaker test or control on one Realtech builtin but working on the other, appeared to be the same.

[galeforce]

Found three files missing - on a guess- installed libcanberra-pulse, libsnapd-glib1 and pulsesudio_1.
Re-boot and system returned to normal.
Probably my fault during a house cleaning of unwanted software.

@1000 - Thanks for the patience.