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DPC Latency sound crackling/artifacts/distortion

L

lelos

Member
Joined
Jul 10, 2013
Posts
7
Hello recently i have this annoying problem with sound distortion, problem occurs after 2-3 days if i dont restart my computer its fine for 1-2 days after the restart without dpc latency.
I did some upgrades and then the problem started, i changed my graphic card and updated all drivers.
I attached 2 screenshots one before the problem and one after i restart my computer.
 

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Hmmm usbport.sys again at the top of the list with numbers significantly higher than the next.

Did you follow the suggestions in that link?
 
I don't really know what usbport.sys topping these lists means - yet. I have just observed and commenting that it consistently is

I find it interesting your problem creeps in over a couple days, then seems to go away after a reset. That suggests (to me, anyway) that some resource is being consumed and not released after it is no longer needed.

I would disconnect any USB device you don't need, like external drives and memory.

Please tell us more about your system, including programs you have starting with Windows - such as hardware monitors.
 
Can you give a description of what the computer was doing during that logged session with LatencyMon?

Also confirm that the logging session was only 1 minute long, as that is it looks like from the LatMon status bar?

FYI: USB WiFi cards are not a good idea on W7x64, they're frequently running on Vista-based drivers that often cause issues, including BSOD crashes. If you can, connect via Ethernet cable or look for a good PCI/PCIe WiFi card (I usually download their latest drivers to check the individual *.sys driver dates for anything I'm unsure about - 2011 and later should be fine, earlier than 2010 are likely to be risky).

The Speccy data says you were connected via Ethernet during that scan, disconnect your USB WiFi device and test without it; better still, uninstall it from Device Manager and also uninstall the software/drivers for it when prompted. Test for a few days.
 
computer running fine games etc i am only getting these annoying distortion sounds from time to time i use wifi wireless card for vmware i can unplug it but i dont think its the one that cause the problem cause i use it for long time i will run latencymon for like 30 mins and i will report it again
 
well my problem seems fixed what i changed was usb driver reset and power state and removed usb from h100i
 
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