Saltgrass
4 Ruthenium

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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%.

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XPS 2720, Inspiron 17 7779, Inspiron 15 7567, XPS 13 9365, Inspiron 1545, TB16 Dock

xyzmarlon
1 Nickel

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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.

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xyzmarlon
1 Nickel

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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).

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Saltgrass
4 Ruthenium

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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.

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XPS 2720, Inspiron 17 7779, Inspiron 15 7567, XPS 13 9365, Inspiron 1545, TB16 Dock

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xyzmarlon
1 Nickel

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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

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Saltgrass
4 Ruthenium

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

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.

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XPS 2720, Inspiron 17 7779, Inspiron 15 7567, XPS 13 9365, Inspiron 1545, TB16 Dock

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xyzmarlon
1 Nickel

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

Hello, I was able to fix all the warnings of whealogger in the event viewer. I am still experiencing the audio problems. Ive been monitoring the CPU in the task manager and noticed that the audio issue happens when the CPU spikes up to 100%. The CPU speed went up to 3.03 or somewhere around it. I now believe that there must be either a driver or a program which is causing spikes in the CPU. Without playing music i noticed that the CPU speed is unstable, the speeds range from .98 GHz to 2.94 GHz. For the most part it is under 2.00 GHz but fluctuates a lot. While playing music the CPU speed is around 2.50 and very rarely goes under 2.00 and also rarely goes up to 3.03 GHz. Hopefully this information is useful in order to sort out this issue.

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Jim Coates
6 Gallium

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

there must be either a driver or a program which is causing spikes in the CPU.

Have you tried LatencyMon? It might identify a problem driver.

Jim Coates -- 15 years on the Dell Laptop Audio boards -- since 2/6/04 

xyzmarlon
1 Nickel

RE: Inspiron 15 7579 Sound Cracking/Gliching/Buzzing

Hello, I ran a test using LatencyMon. I am going to post it here so it could be viewed and analyzed. Please if anyone spots anything post it here. Also if there is any action that I need to take please tell me.

Here is the report:

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CONCLUSION

_________________________________________________________________________________________________________

Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.

LatencyMon has been analyzing your system for  1:16:56  (h:mm:ss) on all processors.

_________________________________________________________________________________________________________

SYSTEM INFORMATION

_________________________________________________________________________________________________________

Computer name:                                        DESKTOP-9R3JU6P

OS version:                                           Windows 10 , 10.0, build: 15063 (x64)

Hardware:                                             Inspiron 15-7579, Dell Inc., 0K1J52

CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz

Logical processors:                                   4

Processor groups:                                     1

RAM:                                                  8061 MB total

_________________________________________________________________________________________________________

CPU SPEED

_________________________________________________________________________________________________________

Reported CPU speed:                                   2712 MHz

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.

_________________________________________________________________________________________________________

MEASURED INTERRUPT TO USER PROCESS LATENCIES

_________________________________________________________________________________________________________

The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.

Highest measured interrupt to process latency (µs):   8733.814069

Average measured interrupt to process latency (µs):   9.817836

Highest measured interrupt to DPC latency (µs):       8622.427827

Average measured interrupt to DPC latency (µs):       3.819225

_________________________________________________________________________________________________________

REPORTED ISRs

_________________________________________________________________________________________________________

Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.

Highest ISR routine execution time (µs):              4759.351032

Driver with highest ISR routine execution time:       ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total ISR routine time (%):          0.050647

Driver with highest ISR total time:                   HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%)                          0.098989

ISR count (execution time <250 µs):                   2202637

ISR count (execution time 250-500 µs):                0

ISR count (execution time 500-999 µs):                5

ISR count (execution time 1000-1999 µs):              0

ISR count (execution time 2000-3999 µs):              0

ISR count (execution time >=4000 µs):                 0

_________________________________________________________________________________________________________

REPORTED DPCs

_________________________________________________________________________________________________________

DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (µs):              17945.885324

Driver with highest DPC routine execution time:       ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total DPC routine time (%):          0.212442

Driver with highest DPC total execution time:         dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in DPCs (%)                          0.705807

DPC count (execution time <250 µs):                   14749904

DPC count (execution time 250-500 µs):                0

DPC count (execution time 500-999 µs):                25201

DPC count (execution time 1000-1999 µs):              355

DPC count (execution time 2000-3999 µs):              93

DPC count (execution time >=4000 µs):                 0

_________________________________________________________________________________________________________

REPORTED HARD PAGEFAULTS

_________________________________________________________________________________________________________

Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.

Process with highest pagefault count:                 none

Total number of hard pagefaults                       0

Hard pagefault count of hardest hit process:          0

Highest hard pagefault resolution time (µs):          0.0

Total time spent in hard pagefaults (%):              0.0

Number of processes hit:                              0

_________________________________________________________________________________________________________

PER CPU DATA

_________________________________________________________________________________________________________

CPU 0 Interrupt cycle time (s):                       260.687857

CPU 0 ISR highest execution time (µs):                4759.351032

CPU 0 ISR total execution time (s):                   15.209072

CPU 0 ISR count:                                      1858658

CPU 0 DPC highest execution time (µs):                17945.885324

CPU 0 DPC total execution time (s):                   104.474733

CPU 0 DPC count:                                      13692032

_________________________________________________________________________________________________________

CPU 1 Interrupt cycle time (s):                       82.198089

CPU 1 ISR highest execution time (µs):                154.782448

CPU 1 ISR total execution time (s):                   3.037661

CPU 1 ISR count:                                      340310

CPU 1 DPC highest execution time (µs):                2901.933628

CPU 1 DPC total execution time (s):                   14.351758

CPU 1 DPC count:                                      412141

_________________________________________________________________________________________________________

CPU 2 Interrupt cycle time (s):                       72.046024

CPU 2 ISR highest execution time (µs):                327.858776

CPU 2 ISR total execution time (s):                   0.025923

CPU 2 ISR count:                                      2904

CPU 2 DPC highest execution time (µs):                2075.301991

CPU 2 DPC total execution time (s):                   7.802850

CPU 2 DPC count:                                      430018

_________________________________________________________________________________________________________

CPU 3 Interrupt cycle time (s):                       73.719930

CPU 3 ISR highest execution time (µs):                74.601401

CPU 3 ISR total execution time (s):                   0.006626

CPU 3 ISR count:                                      771

CPU 3 DPC highest execution time (µs):                1621.489676

CPU 3 DPC total execution time (s):                   3.705381

CPU 3 DPC count:                                      241369

_________________________________________________________________________________________________________