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Comment by Ciantic | Hacker News Reader

Mouse stutter has become more common in Windows. Every time I open a web page with Spotify embed mouse freezes for ~0.5 to 1 second and then continues moving, I haven't found any reason for it, it happens with Firefox, Google Chrome, and Edge.

It's been repeatable ever since I bought a Ryzen 7950X at the beginning of the year, that's why I tried using system profiler tools to find the reason but as I have no good experience in this it's difficult to find the root cause.

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I had similar problems maybe 15 years ago, so I don't remember exactly how I solved it. In my case it was a NIC driver that filled up some queue when I downloaded "Linux ISOs" too fast over bittorrent.

There are tools available to find the source of the problems, I think I used event tracing as a starting point.

https://learn.microsoft.com/en-us/windows-hardware/drivers/d...

Did you do any overclocking (especially RAM)? I've seen issues like this with either slightly unstable OC, or bad drivers.

I'd also suggest running https://www.resplendence.com/latencymon to see if it's a specific driver causing the stalls, or if it's random.

You can use UI4ETW[0] to capture an event trace when the mouse freezes. You may need to install the Windows SDK or Visual Studio to interpret the results, though.

[0] https://github.com/google/UIforETW

Unplug and try a different mouse. Unplug and disconnect any other peripherals except the mouse and try that. Try a new user on windows (user space apps) Try a fresh install (system stuff) If you have spinning rust try another hard drive (an app doing stupid blocking exclusive stuff with writing or reading can pause input stuff).

I noticed it after I upgraded to a 3900X. Not sure if it's an AMD thing, a USB hub thing, or a many-core thing. But it had never happened before. (Microsoft Pro Intellimouse)

It's probably an AMD thing. I had the same with a 5800x until I switched to a PCIe/usb card instead of the onboard ports.

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