Usbport.sys causes high DPC over time.

[Slappy]

So here's my problem and i've been looking everywhere for something that might fix this... my machine is running pretty much 24/7 but after about 5 days of uptime my dpc reaches around 12000-14000µs and my sound starts crackling, i've updated all my drivers, i've updated my bios and everything else when using this guide How to Diagnose and Fix High DPC Latency Issues with WPA (Windows Vista/7/8) - Sysnative Forums i found out that what's eating up my latency seems to be usbport.sys however i have found absolutley nothing that might help me solve it. Does anyone have any idea of what to do? If you need more information from me just say so and i'll respond as soon as i see it.

 

[Slappy]

no one who knows what to do?

 

[Dude]

Slappy,

Welcome to the forums. Please update your specs with the link in my sig. You stated you updated your BIOS, are all your chipset drivers updated too?

 

[Dude]

Also found this tip in a thread that might help

:ar: Latency

 

[Slappy]

All updated and no that fix does not work already tried it i do know that once i remove the controler that uses the usbport.sys in device manager my dpc drops, however it just takes a couple of days and it's back up again and i'm forced to do a reboot to get the dpc to lower because it keeps building up over a couple of days.

 

[Dude]

did you try
Click Start --> Search for "Power Options" and open this control panel --> (on default "Balanced (recommended)" is selected) Choose "change plan settings" --> "Change advanced power settings" --> "Processor power management" --> "Minimum processor state" --> change setting to "100%


That is a really good rig you have.

 

[fireberd]

Try the resplendence latency check program. It provides a more detailed description of what is happening compared to the DPC Latency Checker.

Resplendence Software - LatencyMon: suitability checker for real-time audio and other tasks

 

[Slappy]

did you try
Click Start --> Search for "Power Options" and open this control panel --> (on default "Balanced (recommended)" is selected) Choose "change plan settings" --> "Change advanced power settings" --> "Processor power management" --> "Minimum processor state" --> change setting to "100%


That is a really good rig you have.

Yeap i've tried that already and thanks i built it this winter planning on having it lasting me for around 4 years before i'm gonna upgrade it to a better one , will probably buy a new GPU before that but other then that it's built to last .

Try the resplendence latency check program. It provides a more detailed description of what is happening compared to the DPC Latency Checker.

Resplendence Software - LatencyMon: suitability checker for real-time audio and other tasks

Yeah i have latencymon to and i have tried it, it tells me the same thing as the windows tools and that is that it's usbport.sys that's causing it but not whati's making usbport.sys to cause it.


Also i uploaded the log of latencymon here so you can have a look.

http://slappy.rymdraket.net/pics/Drivers.txt

 

[fireberd]

Here is one thread on that usbport.sys latency
DPC Latency USBport.sys

 

[Slappy]

Here is one thread on that usbport.sys latency
DPC Latency USBport.sys

Yeah i've checked that to, can't seem to find an answer there either to what is causing it, is there any program out there that can see what software might be using certain drivers, since the dpc builds up over time i don't think it's a faulty driver either since it seems unlikely that it would take days before it reaches the crackling and popping sound that comes from high dpc.

 

[fireberd]

Taking a while (days) before it happens suggests some program or device is not clearing memory or unloading when its not in use.

I don't keep mine powered on overnight so I never get to that point, to see what mine would do. I use my system for my recording studio so I keep an eye on everything, but powering off over night and powering on in the morning there is nothing there.

One thing I see, I see RealTek and I also see Creative (soundblaster). Do you have both a Soundblaster sound card and Realtek or is the Soundblaster just the software enhancement? If you have both an actual soundblaster sound card and realtek, the realtek should be disabled in the BIOS or there will be conflicts and potential sound problems. My recording studio system (what is in My system Specs) motherboard came with the SoundBlaster enhancement. I initially installed it but later uninstalled it as I never used it. If I want "high quality" sound, I just use my recording studio hardware with the PC.

I ran into another (USB) problem with a Logitech/mouse combo that use the Logitech "Unifying" system (bluetooth connections) and had to go back to a wired keyboard and a "standard" wireless mouse. That mostly affected the keyboard but I was having some other flakey problems.

Finally, are you using a wired internet connection or a wi-fi? Wi-fi is a known cause (there are others) of the stuttering, popping crackling of sound.

 

[Slappy]

Taking a while (days) before it happens suggests some program or device is not clearing memory or unloading when its not in use.

I don't keep mine powered on overnight so I never get to that point, to see what mine would do. I use my system for my recording studio so I keep an eye on everything, but powering off over night and powering on in the morning there is nothing there.

One thing I see, I see RealTek and I also see Creative (soundblaster). Do you have both a Soundblaster sound card and Realtek or is the Soundblaster just the software enhancement? If you have both an actual soundblaster sound card and realtek, the realtek should be disabled in the BIOS or there will be conflicts and potential sound problems. My recording studio system (what is in My system Specs) motherboard came with the SoundBlaster enhancement. I initially installed it but later uninstalled it as I never used it. If I want "high quality" sound, I just use my recording studio hardware with the PC.

I ran into another (USB) problem with a Logitech/mouse combo that use the Logitech "Unifying" system (bluetooth connections) and had to go back to a wired keyboard and a "standard" wireless mouse. That mostly affected the keyboard but I was having some other flakey problems.

Finally, are you using a wired internet connection or a wi-fi? Wi-fi is a known cause (there are others) of the stuttering, popping crackling of sound.

Well i do use my comp for some stuff when i'm sleeping so it's pretty much always on, the creative sound blaster is for my world of warcraft headset creative sent me a couple of years ago, it was never the cause of any problems before but since it's wireless the dongle for it does act like a usb sound card but i've tried running the comp without it plugged in to rule it out and even when it's not connected the latency still keeps raising.

 

[fireberd]

What IRQ is the USB on? Is it on a shared IRQ with something else? Doing google searches for your problem I saw one that has the Usbport.sys latency (and audio crackling) that was traced to the shared IRQ.

Another's problem turned out to be the keyboard, etc. So don't leave anything out as a possibility.

The sound is on a shared IRQ with a higher priority device and sometimes that causes audio problems.

 

[Slappy]

What IRQ is the USB on? Is it on a shared IRQ with something else? Doing google searches for your problem I saw one that has the Usbport.sys latency (and audio crackling) that was traced to the shared IRQ.

Another's problem turned out to be the keyboard, etc. So don't leave anything out as a possibility.

The sound is on a shared IRQ with a higher priority device and sometimes that causes audio problems.

I know i've seen IRQ's before but for the life of me i can't seem to find out how the hell i locate them, any tips?

 

[fireberd]

Go to the Device Manager then click on View and Resources by Type and finally Interrupt Request (IRQ).

Here is a partial display of mine. Its interesting to note Audio and one USB are both on the same IRQ (17) in my system.

 

[Slappy]

Go to the Device Manager then click on View and Resources by Type and finally Interrupt Request (IRQ).

Here is a partial display of mine. Its interesting to note Audio and one USB are both on the same IRQ (17) in my system.

So when checking the IRQ i see that standard enhanced usb controller (what is actually using usbport.sys) shares the same irq with some other stuff however it does not share it with the audio.

 

[fireberd]

My enhanced controllers are not on that shared IRQ. There is a way to move that to a different IRQ but I'm not sure how to do it. Something to consider.

 

[Slappy]

My enhanced controllers are not on that shared IRQ. There is a way to move that to a different IRQ but I'm not sure how to do it. Something to consider.

After some research i don't think that the irq is the problem, i've gone over some threads i've found and nothing indicates that irq would be the culprit.

 

[fireberd]

It may not be the actual IRQ but it could be what its being shared with.

But its just a long shot and a thought - and probably off base.

Jack

 

[Slappy]

It may not be the actual IRQ but it could be what its being shared with.

But its just a long shot and a thought - and probably off base.

Jack

Is there any other ideas to how the hell to fix this? It's clear that it's usbport.sys that's acting up however i've been doing alot of research about this and it seems that no one is able to come up with a solution no matter where i look. I've tried uninstalling the shared controller and that did not help and i'm not sure what else to do right now.