Software⏱️ 2 min read

How to Fix: [Fix] Finally fixed the DWM dual-monitor stutter bug (without disabling HAG

Fix stuttering dual-monitor issue with DWM without disabling HAGS, resolve smooth gaming experience on Windows.


The DWM dual-monitor stutter bug is a frustrating issue that affects many Windows users, particularly those with multiple monitors and varying refresh rates. This bug can cause video to stutter or lose smoothness on the secondary monitor, even when gaming or browsing. The exact cause of this issue can be difficult to pinpoint, but common culprits include incompatible drivers, outdated graphics software, and misconfigured display settings.

⚠️ Common Causes

  • Incompatible drivers or outdated graphics software
  • Misconfigured display settings, such as incorrect refresh rate or resolution
  • Insufficient RAM or system resources

🛠️ Step-by-Step Verified Fixes

Method 1: Updating Graphics Drivers

  1. Step 1: Open the Device Manager and expand the 'Display Adapters' section.
  2. Step 2: Right-click on each graphics driver and select 'Update Driver'

Method 2: Disabling HAGS and Enabling DWM

  1. Step 1: Press the Windows key + R to open the Run dialog box, type 'services.msc' and press Enter.
  2. Step 2: In the Services window, find 'Desktop Window Manager' and set its startup type to 'Automatic'
  3. Step 3: Right-click on 'Desktop Window Manager' and select 'Stop' and then 'Restart'

💡 Conclusion

By following these steps, you should be able to fix the DWM dual-monitor stutter bug without disabling HAGS. Remember to regularly update your graphics drivers and monitor your system resources to prevent similar issues in the future.

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