Disable multiplane overlay (MPO)
Turns off DWM multiplane overlays (NVIDIA's documented workaround for flicker).
Applying it needs Nexus Pro. Every plan can read it here and undo it in Restore Center. Compare plans
What it changes
HKLM\SOFTWARE\Microsoft\Windows\Dwm\OverlayTestMode = 5
Before anything is written, the review screen shows this setting's current value on your PC next to the new one.
Why it helps
Fixes black-screen flicker and stutter in browsers/games on some multi-monitor NVIDIA/AMD setups.
Trade-offs
Slightly higher GPU and power use for video playback. Only apply if you see flicker.
Evidence
Moderate evidence means: helps in specific situations. Expected impact is small (1 of 3): how much it can matter when this is actually the bottleneck on your PC, not a promised gain.
Is it in a pack?
No. Packs only contain Safe tweaks, and this one is labelled Caution.
How to undo
Switch the tweak off in Nexus, or open Restore Center and restore this change (or choose Undo last change). Nexus writes back the original value it recorded before applying, not a generic default, then reads it back to confirm.
Like applying it, undoing it takes full effect after you restart.
More in GPU & display
- Hardware-accelerated GPU schedulingTurns on GPU scheduling by the graphics card itself (Settings > Display > Graphics).SafePerformanceRecommended
- Disable fullscreen optimizations globallyAsks games to use classic exclusive fullscreen instead of the optimized borderless path.CautionPerformance
- MSI interrupt mode for the GPUSwitches the graphics card to message-signalled interrupts (if its driver supports it).ExperimentalPerformance
- Turn off Windows Dynamic LightingStops Windows controlling RGB lighting on keyboards and mice.SafeReliability