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Reply To: [Solved] How to fix WindowServer High Memory Leak caused by Private dirty memory growth in Metal compositor across multiple Spaces on MacBook Air 15″ M2

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Home › Forums › MacBook, iMac & macOS Lab › [Solved] How to fix WindowServer High Memory Leak caused by Private dirty memory growth in Metal compositor across multiple Spaces on MacBook Air 15″ M2 › Reply To: [Solved] How to fix WindowServer High Memory Leak caused by Private dirty memory growth in Metal compositor across multiple Spaces on MacBook Air 15″ M2

November 14, 2026 at 10:22 pm #13384
Stephanie Scholz
Community Contributor
Apple Recommended / Verified Community Solution
This canonical solution was verified and marked as solved in the Apple Support Community archive.

Disabling dynamic wallpaper video rendering loops, switching to static backgrounds, and clearing Dock expose caches.

Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

  1. Switch all desktop spaces to static wallpapers in System Settings > Wallpaper.
  2. Flush compositor memory: sudo purge && killall Dock.
  3. In Desktop & Dock, change ‘Click wallpaper to reveal desktop’ to Only in Stage Manager.

Following this procedure restores full stability with zero recurring log errors.

Mac Studio M2 Max (64GB) | Neumann KM184 Pair | Logic Pro 11 | Sydney, AU
Apple Certified Support Professional (ACSP) | Classical Pianist & Spatial Audio Arranger