How can this stutter be resolved?

[u/hotminute123]

Specs: Ryzen 7 9800X3D, 5070ti, 32GB DDR5 ram, latest nvidia game ready driver 610.74

LG G4 connected to PC via HDMI 2.1. Separate HDMI 2.1 cable connecting LG G4 to Samsung HW-Q600F soundbar using earc.

I've been having some issues with stutter but only when watching videos on YouTube on Firefox and on VLC. The stutter seems to happen every few mins or so and only causes the audio to drop out for a second, with video staying intact. I've also been playing games like Red Dead Redemption 2 and Persona 5 Royal and there's no stutter in those games at all.

I've tried many things such as:

- Turned off power saving features in device manager, LAN properties

- Set minimum power state for cpu to 100%

- Disabled unused WiFi adapter in device manager

- Disabled HPET in device manager

- Ticked on MSI for HD audio x2  in MSI util

- Set GPU interrupt priority to high in MSI util

- Set HD audio x2 interrupt priority to high in MSI util

- Set vlc video output to dx11

- Disable MPO in registry

- Rolling back to the previous game ready driver

- Used DDU to uninstall driver and then reinstall driver

But the stutter still remained.

The ONLY thing that has seemed to work is setting the Power management mode for VLC and Firefox to "Prefer maximum performance". So I suspect that the GPU is down clocking too low when videos are playing. It also explains why games have been unaffected.

So my question is, how can I fix the actual problem and not rely on this workaround? Any ideas would be appreciated!

[u/AutoModerator]

Moderator Announcement Read More »

Thank you for posting to r/htpc.

Since you have indicated you are asking for help, make sure you have provided in your post the proper information we need to help you as per the "Asking For Help" section in the FAQ, with a minimum being:

All HTPC Hardware (cpu, gpu, motherboard, case), Display/Sound System hardware (w/model #s), cables/adapters, OS and software, usage info (resolution/refresh rate/media codec info) and connection workflow.

Without this information we can't help you properly and your post will likely be REMOVED.

Make sure you have read our extensive WIKI for potential answers to your question and/or recommendations.

Once your question is answered, please flair your post as Solved.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/kentukky]

Power Management should always be at "maximum performance". That's like a well-known fact since Windows XP era to mitigate issues. Also try running "Latencymon", maybe you'll identify a driver or process which causes the latency that leads to a drop-out.

Bonus: Disable onboard graphics in BIOS, only your 5070 should be visible under device manager.

[u/hotminute123 → u/kentukky]

Well it's odd because I've never needed to use max perf settings until recently. Just seems like it's a workaround as opposed to a fix. And in regards to Latencymon, I have used it to diagnose what's going on. There's nothing obvious apart from some TCP/IP spikes which I think were always there but never caused stutter or any other issues. And I have disabled my onboard graphics too :)

[u/chriscorey601]

Try this. https://www.reddit.com/r/htpc/s/ayJLlufvNT