Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

It seems to me to be a charger issue. You could contact tech support and see what they have to say about it.

* Turn the Inspiron 15-7579 off
* Change the physical mode to Laptop. Not Tablet or Tent
* Disconnect, then reconnect the AC adapter to the 7579
* Turn the 7579 on
* Once on the Windows desktop, download and reinstall our Realtek ALC3253 driver When done, restart the 7579

* Once on the Windows desktop, plug headphones into the leftside headphone port
* Play music. How does it sound?
* While the music is playing, disconnect the headphones. The music should switch to the internal speakers. How does it sound

* Turn the Inspiron 15-7579 off
* Disconnect the AC adapter from the 7579
* Turn the 7579 on using battery only

* Once on the Windows desktop, plug headphones into the leftside headphone port
* Play music. How does it sound?
* While the music is playing, disconnect the headphones. The music should switch to the internal speakers. How does it sound

Ok, thanks for the suggestions, I will try them and report back asap. Thanks again.

The audio driver solution seems to have cleared things up a bit as of right now. Now when i plug in my charger I get a minimal  noticeable static for a second. But then, while the charger was plugged in my music started to go in slow mode and buzz for 2 seconds after a while, not instantly when the charger gets plugged in. At this point I'm not sure if the second issue is related with the charger at all.

At this point I'm not sure if the second issue is related with the charger at all.

The usual test is to see if the problem goes away when you unplug the charger. If so, then it is related to the charger. If the problem exists when not connected to charger, then most likely unrelated.

I can confirm that the slow mode music buzzing is not related to the charger as it has happened randomly without the charger plugged in. I also noticed a mild computer lag when this occurs.it usually lasts about 2 seconds. Now this seems to randomly occur, I haven't been able to replicate this by plugging in the charger. The only problem when plugging in the charger is a very minor brief static that is barely noticeable.

You have confirmed the processor is running at normal speeds?

1. What would the normal processor speeds be?

My normal speed when not working hard is around .7 to .8 GHz.  When the problem occurred, the speed was down to .41 GHz. 

Task Manager shows the processor speed and can be read in written or graphical form.  The Resource Monitor provides more info than Task Manager.

The Event Viewer is your best source of logs.  Whether Errors or Warnings it may give some indication.

It is hard to judge if something is messing with your system.  I went to a Microsoft website and because of IEShims.dll the site would force the Processor utilization up to 60%.

1. What would the normal processor speeds be?

2. Is there any way of monitoring the processor speeds to see any correlation with the issue.

3. I can now confirm that the buzzing/static/sound glitching/distortion seems to not be directly related to the charger as it happens randomly with and without the charger on. Plugging in the charger does seem to induce the issue to happen but not always.

4. When the music starts to get distorted/buzzes/slows down I also notice sometimes a lag throughout the computer. Like I have said, this only lasts around 2 seconds.

5. Is there any logs I could provide to here that could show the issue?

Also while going through the events viewer I saw A LOT of warnings at the moment of the crash, most were pci express root port errors (devicesetupmanager) (whea-logger)  and  speeds of processors being limited by system firmware (kernal processor power).

Today while trying to replicate the problem via plugging in the charger into the laptop my laptop crashed and got a blue screen. It's not the first time it has happened but the first time it happened because of plugging in the charger. The stop code is Unexpected_store_exception . The blue screen did not appear instantly. The computer was semi usable for about a minute before crashing. The music stopped and was stuck on loading. The loading animations were not frozen.

The only time I have seen the whea-logger was in relation to Bluetooth.  You might try disabling it in the Bios and see if it makes any difference.

Have you set your system to write the small dump files?  If not, type systempropertiesadvanced in a Run box and hit enter.  It will take you to that tab so go to Startup and Recovery - Settings.  On the bottom select Small memory dump (256 KB)  You can Zip and attach or put them on your OneDrive and give us a link.  I saw a number on one dump file which may have contained a number you would not want to publish but I cannot confirm since I do not know the real number.  Maybe someone from Dell would have a comment.  You could private message me with a link if you want.

I you can get a dump file it may help explain what is happening but no guarantees.

So is it safe to send my dump files or not? If anyone can confirm.

I checked the number again and it is described as a Baseboard_Product number and is 6 digits.  A number with 6 digits does not fit any of my special numbers so it is probably something else.

I was also thinking that plugging or unplugging the Power adapter changes how your power scheme behaves.  I might try either restore the default settings for the one you currently use or try a different Power Scheme.