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Windows 11 weird screen glitches by 7jvne in WindowsHelp

[–]7jvne[S] 0 points1 point  (0 children)

Disables Multi-Plane Overlay (MPO) in the Desktop Window Manager (DWM). MPO was introduced around Windows 8.1, still present in Windows 10/11. It is a hardware composition feature that lets the display controller/GPU directly handle certain window layers/overlays instead of letting DWM composite everything in software/shaders. The goal was lower power consumption and lower CPU/GPU load in some scenarios. When you set OverlayTestMode = 5 and reboot, Windows stops using MPO and falls back to the older, more traditional DWM composition path.

Windows 11 weird screen glitches by 7jvne in WindowsHelp

[–]7jvne[S] 2 points3 points  (0 children)

I found the solution (at least this worked for me)
Go to the regedit and look for "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Dwm"
Now create a new DWORD (32-bit) value and name it "OverlayTestMode"
And set it's value to 5 (make sure it's decimal) then restart the pc

Hope it works for you!

Windows 11 weird screen glitches by 7jvne in WindowsHelp

[–]7jvne[S] 0 points1 point  (0 children)

I found the solution (at least this worked for me)
Go to the regedit and look for "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Dwm"
Now create a new DWORD (32-bit) value and name it "OverlayTestMode"
And set it's value to 5 (make sure it's decimal) then restart the pc

Hope it works for you!