Inspiron G7 7790, Audio Pops & Glitches, fixed

Question

To DJ's, Producers and anyone who is having a problem with audio glitches with a Dell Laptop.

Ask yourself the question, am I a producer, DJ or live musician who depends on a PC to perform flawlessly without glitches in the audio? I've been doing Pro Audio for decades- at this point I'm an expert-level system tuner, and I purchased a Dell G7 7790, which is a great laptop in almost every respect. However, after wasting nearly a month of my life trying to solve the audio glitches related to the ACPI.sys issue, I've come to the conclusion that as of Sept 3 2019, this is an unsolvable problem. Using Process lasso, etc- unfortunately this is *not* a 100% fix, and frankly it should not be necessary on a machine with 2019 specs.

AlexMurari · Accepted Answer

If anyone stumbles upon this issue, there's a solution other than returning the equipment.

Basically Windows has an aggressive power saving behavior that "shuts down" the audio device when there's no audio signal, to save power. This can be annoying because when you play something, the device takes a while to start up and there's a pop noise and a delay before the audio is played.

Fortunatelly, there's a simple solution for that by disabling this power saving behavior for the audio device:

Open RegEdit;
Navigate to the following key: "Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\"
Right-click on "Class", then "Find", then search for: "PerformanceIdleTime"
The first result will be inside a node with the following structure "000X/PowerSettings" where X is a decimal number (0, 1, 2...). Find the node that corresponds to the audio driver, in my case it was the "0001/PowerSettings" node. May vary from computer to computer. In the "000X" node you can find information about which driver that node represents.
Once you find the correct node for the audio driver, set the following keys inside the "PowerSettings" node to:

ConservationIdleTime = ff ff ff ff
IdlePowerState = 00 00 00 00
PerformanceIdleTime = ff ff ff ff

6. Reboot;

Enjoy. No more popping or sound delay.

dood665 · Answer

'Find the node that corresponds to the audio driver...' how? i have qadrilion (5) devices there?

Mochill · Answer

Thank you so so much the regedit actually works (so far). THANK YOU, it's been driving me bonkers even though I found a workaround with listening to Stereo Mix on 0.

Inspiron

Inspiron G7 7790, Audio Pops & Glitches, fixed

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