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UX2 crackling continuously on Win 10, tried everything

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Hi all.


I am looking for advice on anything else I can try to get a TonePort UX2 working on Windows 10. It crackles continuously during playback no matter what the buffer size, power settings, system load, which feels like a driver problem to me.


I think I can rule out hardware problems, because if I boot KX Studio (Linux-based audio distribution) on the exact same laptop, using the same USB port and cable to the same UX2, the audio quality is fine with the ALSA USB audio driver.


Computer is Acer Aspire 5536 laptop (Turion X2 processor) running Windows 10 Home 64 bit (10586.212.amd64fre.th2_release_sec.160328-1908). I have tried the following, and none of them have made any difference:


Clean install of Windows

Latest BIOS (Acer 1.11)

​Latest Line 6 drivers (

Latest Windows updates installed

Power supply connected vs running on battery

Disabled WiFi adapter

Enable "high performance" power profile

Different USB port(s)

Different USB cable

Uninstall USB host controller driver and reinstall

Disabled hibernate/fast boot

Different sized buffers

Different sample rates

Set Windows default audio device to UX2 vs built in audio



Any suggestions for anything else to try would be greatly appreciated!








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Same problem with you from Agu last year, the first time I updated my system to win 10.

After I updated my system, I downloaded the last drive from Line6 Official website, and was told that the drive of UX2 would work well with win 10, but it did not. I tried everything, and found the only way to solve this problem: REINSTALL THE WIN 7.

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  • 2 weeks later...

Hi. Just found the solution.


You need go to:


- control panel > hardware and sound > Power options >

- put the balanced plan and on the left go to change plan settings

- go to change advanced power settings

scroll down to the Processor power management and expand it

- expand the Minimum processor state  and set the settings value to 100% (there is 5% by default)


Works like a charm. Cheers. 

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I'm new and this post is a month old but... I solved all my cracking and cutout issues by messing with the tone direct buffers. My system was stuttering and stammering like crazy until I dialed in those settings. And this is on a 4-core hyperthreaded i7 w/24gb mem and a SSD.

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  • 1 year later...

Hi all... I too am getting that crackling noise - I've even looked around and someone suggested audio incompatibilities with asio and windows 10 - so i installed the asio4all drivers - and Nope - no change. I tried changing the power balance - Nope. Line 6 sent me a link with troubleshoots and things to try - nope nothing. I actually brought an entirely new computer because it was doing the same thing on my old one, which was then equated to be an issue with my computer not the line 6 product via contacting line 6 directly... which now i can clearly see its not - and that was using a windows 7 based system. I've changed my cables, my mixer, using UX2 direct to computer and not using uX2 direct for recording, I've tried different guitars, Installing old drivers vs installing new ones, reauthorizing the product, different usb ports.... the only thing i haven't tried is a new UX2 unit.  I really think this is truly a driver and windows 10 incompatibility issue and am now being forced to look at alternative companies and products in order to record my music. This is my last attempt to find help in fixing this issue. I really don't know what else to try, i love my UX2 but feel that i will have to look elsewhere for my guitar tones going forward as I can't use a product that isn't working properly on my recordings.  

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  • 3 weeks later...
  • 1 year later...

I'm not sure if I get the same crackling as you guys. I bought the Ux2 on 2013 and used it on windows. I got the crackling sound on whatever I was recording and in my case I solved it unplugging and re plugging the interface like 2 or up to 4 times until I got rid of it. Now I use it on a Mac and it's still there... It's annoying but I got it solved that way. I don't know if my crackling differs from yours.

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Hi guys. Try to use the LatencyMon app ( https://www.resplendence.com/latencymon )


LatencyMon checks if a system running Windows is suitable for processing real-time audio and other tasks. LatencyMon analyzes the possible causes of buffer underruns by measuring kernel timer latencies and reporting DPC and ISR excecution times as well as hard pagefaults. It will provide a comprehensible report and find the kernel modules and processes responsible for causing audio latencies which result in drop outs. It also provides the functionality of an ISR monitor, DPC monitor and a hard pagefault monitor.

LatencyMon will display the highest latencies of a kernel timer and report the highest execution times of ISR and DPC routines as well as hard pagefaults. In most cases it will also find the drivers and processes responsible for executing them. It will create a comprehensible report which also displays all sampled data in a detailed manner allowing you to perform in-depth analysis.



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  • 2 years later...

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