Audio stutter issue

Simiantics

Simiantics

Simiantics

Associate
Joined
22 Sep 2014
Posts
23
Hi,

I recently bought a system from OC and everything was fine for 2 months or so but in the last week I have had audio stuttering/buzzing which also causes gfx stuttering in games. It affects Youtube etc also.

I have tried many fixes I have read online:
  • updating Realtek driver (tried a variety of drivers from Realtek, mobo manufacturer and microsoft)
  • disable enhancements & exclusive mode in audio properties
  • changing the audio quality
I have a feeling it is linked to my wifi PCI adapter as I have read it can be a cause of this issue. I updated the drivers for it also.

I ran Latencymon to check audio:

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. 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.

I am not sure if the culprit is ndis.sys - it seems to have the highest latency in the latencymon report:

ndis.sys
Network Driver Interface Specification (NDIS)
86.703302 ms
Microsoft Corporation
Microsoft® Windows® Operating System
10.0.19041.630
C:\Windows\system32\drivers\ndis.sys


I am not sure what to do with this information.

Audio = Realtek (onboard Gigabyte Z390 AIORUS PRO-CF)
wifi card = ASUS PCE-N15 11n

It seems this is a known issue on Win10. Any suggestions gratefully accepted as this is doing my head in.

Thanks.
 
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GeForce RTX 2070 SUPER

Highest reported DPC routine execution time (µs): 721.551111 (nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 461.40 , NVIDIA Corporation)

Is this driver part of the graphics card drivers? I wonder if it started when I first updated them - been a few updates since.
 
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Realised the wifi was a red herring and rolled back my gfx drivers to an older version (current version has widely reported DPC latency issues) - problem solved. Thanks.
 
Scrub my earlier post - problem still there - it is definitely something to do with the Wifi PCI card and the ndis.sys file causing DPC spikes.

The problem disappears when I disable the Network adapter.

Anyone got any ideas?
 
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