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[SOLVED] And another high DPC/sound issue thread. FIX: I uninstalled AVG.

A

Andunemir

Member
Joined
Oct 16, 2013
Posts
7
Hi,

New here and coming with the usual combination of what seems to be high DPC/sound stuttering in Windows 7 x64.

It's been happening basically since the beginning and usually after having the PC running for a while. If I restart it takes a while until it creeps back up. I have all drivers up to date as far as I know and having installed one or another didn't make any difference.

Run LatencyMon and xperf and the main culprits seem to be the network processes (netbt.sys, ndis.sys and tcpip.sys) and iusb3xhc.sys. I have tried disabling the Ethernet and anything related to NDIS, since it's usually the highest one, but still peaking. Also disabled the Wi-Fi miniport adapters but still the same.

I have a Toshiba Satellite with these specs:

OS: Windows 7, x64
Processor: Intel i7-3610QM @ 2.30GHz
RAM: 16GB
Sound: Onboard Realtek
Video: NVIDIA GeForce GT 630M

Any help would be most welcome because it drives me insane having to drop everything and restart to get it back to normal.

Cheers!
 
Hello Andunemir,

Could you please also run Windows SDK setup and select to install "Windows Performance Toolkit"? Once it's installed run the following command from elevated (Run As Administrator) command prompt (if the command asks you to modify the registry, please do that, reboot your computer and re-run the command):

Code: 
xperf -on PROC_THREAD+LOADER+PROFILE+INTERRUPT+DPC+DRIVERS -stackwalk Profile -BufferSize 1024 -MinBuffers 256 -MaxBuffers 256 -MaxFile 256 -FileMode Circular

Now, play some audio until you experience the issues you mentioned. Once you do, run the following command to stop the logging:

Code: 
xperf -stop -d C:\CPU.etl

Attach the C:\CPU.etl log file here.

Thanks.
 
Thanks for the report.

The issues seems to be caused by AVG TDI Driver (avgtdia.sys):

avgtdia.PNG

You could try removing AVG products temporary to see if the issues resolve. Please let me know the results afterwards.
 
I've updated my wi-fi driver that, as it happens, was out of date regardless of what Toshiba said. If the issue continues then I'll go for AVG and see what happens.

Thanks for the help. I'll report back.
 
The update didn't work but uninstalling AVG did. Well spotted, man. I had tried stopping it before because I had read somewhere it did cause conflicts but because that didn't fix it I stopped considering. So far 2 days with the PC running and not a single sign of trouble.

Thanks for your help. I'll report back if it was to come back.
 
I really glad to hear it helped.

If by any chance issues are back, please let us know. If they don't, please mark the topic as Solved.

Have a nice day :)
 
So far so good. I'll mark it as solved for the time being. If they return I'll come back crying again... haha

Thanks a lot for your help!
 
Hello!
Im a new member in the forum, and i have arrived here because of a trouble that is given (LatencyMon told that) by Iusb3xhc.sys. I would thank a lot if somebody coud help me (and apologize me for my poor english). Thank you very much and excuse me if this is not the appropriate place to post this.
 
Hey i am having this same issue with netbt.sys and ndis.sys. Sir Tomas D, are you willing to help me?
 

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