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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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Input Drops Through KVM Switch (infosec.pub)

submitted 7 months ago by [email protected] to c/[email protected]

7 comments fedilink hide all child comments

For a long time now, I've had audio drops and sometimes even keyboard input drops through my KVM switches.
When a drop occurs, all audio across all applications drop at once. If there's a video playing then it'll pause briefly. In a game, I just miss a second of audio with no video stuttering.
When I connect my USB speakers directly to my motherboard then the issue does not occur; only through the KVM switch. I was using this decent switch I got off Amazon but just replaced it with one from Level 1 Techs and the issue remained. I've tried different ports on the switches and my board as well.
The issue also only occurs on my Linux computer. When I switch over to my work laptop running Windows I don't have the issue.
I'm not seeing anything in journalctl that seems related after swapping KVM switches. With the old switch I was seeing logs like below but no longer see that with the new switch.

kernel: retire_capture_urb: 1 callbacks suppressed

My PC
CPU: AMD Ryzen 9 7950X
Motherboard: Asus PRIME X670E-PRO WIFI
Memory: G.Skill Ripjaws S5 64 GB (4 x 16 GB) DDR5-5600 CL28
GPU: Gigabyte GAMING OC Radeon RX 6900 XT 16 GB
Kernel: 6.8.1-arch1-1
DS: Wayland 1.22
DE: Gnome 45.0.1
AS: Pipewire
SM: Wireplumber

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[–] youngGoku 3 points 7 months ago (2 children)

Have you tried another OS on the same hardware to rule out hardware issues?

[–] [email protected] 1 points 7 months ago* (last edited 7 months ago) (1 children)

I don't get any audio drops on my work laptop running Windows
Tried different KVM switches
and different ports
with all of the same devices connected but my speakers connected directly to my computer then I get no drops

[–] youngGoku 3 points 7 months ago

So the answer is no, you didn't try another OS on the same hardware. Likely could be hardware issue.