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**dbalata** · Aug 04, 2019, 07:06 AM

Not a true solution to this, but something that lessened this problem for me was reducing the volume on the audio device itself, i.e. turning the knob on the speaker, then adjust the volume at the os/application level to compensate. I can still hear a faint pop, but it isn't nearly as intrusive.

**epito** · Aug 15, 2019, 02:51 PM

I have the same problem as well with KDE neon

**woodsmoke** · Aug 16, 2019, 02:10 AM

Hi

Hey, I'm just a hardware sorta guy so I always look at hardware first.

BUT to me... THE REAL ELEPHANT IN THE ROOM IS THIS sentence.

I have run across this in the past with different motherboards and different distros,

Let us put aside "different distros".

You keep using the term "motherboards" . Are they built into a laptop, or are they in a computer tower, or both?

Because that then leads us to the speakers.

Do you have external speakers and have you used the same speakers in all of the different situations: ( different mother boards and different distros).

If that is correct then it falls to one simple thing and that is the interaction of the speaker system with "other stuff"

And that then is not Kubuntu specific it is common to all the distrtos and all of the hardware.

So, again, it would be the speakers and I do not think anyone can actually address the situation.

But, if is NOT then...

I don't know the answer but maybe what the question needs is to be framed properly. Here is the operative sentence:

Symptoms: audio pops once when the motherboard is powered on during boot, pops once again as the boot almost finishes, and then pops once right before a music file is played. If there is more than about a 10-12 second delay between music, the pop occurs again when the next music file is played.

which reduces to;
power on pop
software / hardware boot pops at end
BEFORE music being played pop
BEFORE next music being played pop

The first two might indicate a hardware situation
the second two indicate a software situation

Did NOT occur with live cd

that would indicate that since the hardware was already running, the live cd mode is working, that it is not a hardware mode, as when the motherboard is being powered on.

So, there are two supposedly contradictory things happening.
a) the hardware is doing the popping, bootup
b) the hardware is NOT doing the popping at bootup when the life cd was running which would be AFTER the hardware had electricity going to the MOBO.
c) the software of the music player is causing the pop.

I found a reference to a pop sound with Ubu 18.04 when the SCREENSAVER starts.
https://askubuntu.com/questions/1068...04-on-yoga-920

Since the screensaver is part of the system where a screen save can be set to be on for a while and then shutting off the screen and then possibly power saving... then THAT might indicate that the problem is, indeed, the power saving mode.

Here is another thread which talks about a DUAL BOOT that had a continuous popping that started "after a while of using the distro", and one suggestion was that it was the "power saving mode kicking in"

https://askubuntu.com/questions/1624...und-is-playing

So, back to your original statement:

It did not occur with the live cd.

So, my question is:

You say "the pop did not occur when the live CD was running"... what do you mean by that sentence?

Does it mean that: the pop did not happen when you tried to play music?

Next question: when you are playing music using the installed Kubuntu on the hard drive...

Are you playing music that is ON the drive, or are you playing a cd, or both?

If the second link that I posted about it being something to do with the power saving mode and you mention ed that you can configure the power saving mode to NOT turn off the audo card between audio outputs is the question now down to:

Is the powersaving mode interacting somehow with the music software?

In other words, you are playing the War of 1812 which is 20 minutes long but you have set the powersaving mode to 10 minutes and the music player is fighting with the power saving mode or vice versa.

If that is correct then the answer is for someone more experienced than me to possibly provide a method to "view" the scripts in some file associated with power saving and then:

a) disable the powersaving mode by saving the script under another name and then changing it to "off"

But the person would need to know FIRST...

did you try to play some kind of onboard music when you were running the live cd?

If you DID NOT try to play music then the DIAGNOSTIC INFORMATION might be obtained by placing a music file on a usb stick and then boot the system using the live cd and using the live cd to play the file on the usb stick.

If the file plays without the pop then it would, indeed, probably be something with the power saving mode.

As to it being something in the "downloaded during install updates" the problem "would probably" be found in the above scripts.

So... this then leads to a possibly simple solution that you can do yourself.

go to Synaptic and look for:

laptop-mode-tools

and simply "completely remove them" them and then reinstall them and see if that helps.

BUT to go all the wa BACK TO THE TOP...THE REAL ELEPHANT IN THE ROOM IS THIS sentence.

I have run across this in the past with different motherboards and different distros,

Let us put aside "different distros".

You keep using the term "motherboards" . Are they built into a laptop, or are they in a computer tower, or both?

Because that then leads us to the speakers.

Do you have external speakers and are the speakers the same for all of the situations, ( different mother boards and different distros).

If that is correct then it falls to one simple thing and that is the interaction of the speaker system with "other stuff"

WAAAAYYYYYY to long a post for such a possibly simple solution. lol

wooddon'tknowthatithelpedbutwhoknowssmoke

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Audio Pop Noise when sound begins to play

Audio Pop Noise when sound begins to play

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