I had this happen with multiple programs for a while, and I found out that my computer had changed the cpu governor from "perfomance" to "power save"
this post was submitted on 30 Dec 2023
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My cpupower profile was set to power save. I just switched it to performance and will give it some time
Issue still occured
This was exactly what caused the problem for me too.
There were issues with TPM so that might affect the older bios versions. You could try disabling it.
Do you know what changed a month ago. It sounds like maybe a hardware issue or a bad update.
I had moved to a new house but my setup is the same as it was prior. I run updates regularly but I'm pretty sure the issue started after moving and before updating
Try only having one video open at once. And reduce the resolution (make the window smaller)
It happens with only a single video or multiple. When there's multiple it happens to all at once
There are still a number of clock sync issues with the Zen4 chips. I've had issues on 6.4/5/6 with similar sounding audio/video that I've been able to somewhat mitigate by getting my amd_pstate settings to stop competing with other power tuning tools. Turn off EVERYTHING you have running dealing with cpufreq management, and just let the kernel amd_pstate do it's thing. No TLP, no desktop tuning tools, just the upstate.
Also, double check that your memory frequencies aren't bouncing all over the place, and consider under locking in the BIOS to exactly match the channel freq for CPU/mem.
See if that helps.
I believe the only power tuning I had was cpupower. I just stopped it and will give it some time. Do you know a tool that'll graph out my memory frequency? My memory seems pretty stable at 4800 MHz but I'll watch it with "watch lshw -short -C memory"
Issue still occured. Didn't see my memory fluctuating either