I am writing a new thread to mention an issue about AMD + NVIDIA laptops using NVIDIA Optimus technology. This seems to be a very old (+8yo!) bug reported first for INTEL + NVIDIA configuration, but it was partially fixed for INTEL by cooperative work between Intel and Microsoft. It doesn't seem to be fixed for AMD though.
Observed issues:
1. Laptops utilizing NVIDIA Optimus technology have 0.5 second stutter on integrated GPU when using particular Windows UI elements:
Clicking on wifi/speaker/battery icon
Right clicking on Desktop
Using "lock account" option in Start Menu / Your account name
Clicking on Restart/Shutdown in Start Menu
Sometimes when using browser (I can't tell exact moments)
Sometimes when maximizing minimalized apps
Sometimes when changing resolution or opening apps
2. Laptops stutter on battery power. Happens on both AMD and NVIDIA, but never on both at the same time. What does it mean:
Hibernating a laptop and waking it up will most likely make AMD stutter entire system every 10-20 seconds. Turning on NVIDIA-powered app will make stutters disappear for that time.
Turning on or restarting laptop will make NVIDIA GPU stutter every 10-20 seconds when dGPU is used. Turning off an app that requires NVIDIA GPU will make stutters disappear for that time.
As you can see from the observed issues, the 1st point is exactly the same issue INTEL+NVIDIA setup laptops had in the past (and partially still have).
This issue was first reported for INTEL here:
[Partially Fixed] Intel + NVIDIA Laptop Freeze Problem - Microsoft Community
dGPU Switch and Freeze Problem | NVIDIA GeForce Forums
Solved: dGPU Switch and Freeze Problem - Intel Communities
But I have also found topics speaking of similar issues on AMD+NVIDIA powered laptops:
HP Omen 15 mouse freeze on Windows 10/11 - HP Support Community - 8223478
dGPU-wake-up-freeze - English Community - LENOVO COMMUNITY
Windows 10 stuttering, does anyone know how to fix it? : laptops (reddit.com)
From what I have seen Lenovo and HP brands are affected by this issue, but it might be way more spread considering this is an NVIDIA Optimus issue with AMD+NVIDIA configuration.
The 0.5 stutter looks like this: https://youtu.be/fSN5a5k-2k8
And the stuttering every 10-20 seconds is like this: https://youtu.be/BGvH53GvaGo