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How to Fix G-Sync Not Working on Windows 11: Step-by-Step Troubleshooting Guide

G-Sync is a technology designed to eliminate screen tearing and provide smoother gameplay on compatible monitors. However, sometimes it might stop working properly on Windows 11, causing frustration during gaming or video playback.

This guide will walk you through simple, step-by-step troubleshooting methods to help you fix G-Sync issues. Each step is explained clearly, assuming no prior technical knowledge.

By following these instructions, you should be able to restore G-Sync functionality without needing advanced tools or professional help.

Let’s begin with some quick checks before diving into the troubleshooting process.

Quick Note: Prerequisites and Initial Checks

Before troubleshooting, ensure the following conditions are met. These are essential for G-Sync to work properly:

  • Compatible monitor: Your monitor must support G-Sync or G-Sync Compatible (FreeSync with NVIDIA).
  • Proper connection: Use a DisplayPort cable for G-Sync. HDMI connections often don’t support full G-Sync features.
  • Updated graphics drivers: Ensure you have the latest NVIDIA drivers installed. Outdated drivers can cause issues.
  • Windows updates: Keep Windows 11 updated to avoid compatibility problems.
  • Exclusive full-screen mode: G-Sync works best when games or applications run in exclusive full-screen mode, not windowed or borderless.

If these basics are all set, proceed to the troubleshooting steps below.

Step 1: Verify G-Sync is Enabled in NVIDIA Control Panel

Sometimes G-Sync might be disabled accidentally in the NVIDIA Control Panel. Here’s how to check and enable it:

  1. Right-click on the desktop and select NVIDIA Control Panel.
  2. In the left sidebar, expand the Display section.
  3. Click on Set up G-SYNC.
  4. Make sure the box for Enable G-SYNC, G-SYNC Compatible is checked.
  5. Select whether to enable it for full screen mode or windowed and full screen mode depending on your preference.
  6. Select your G-Sync compatible monitor in the list below.
  7. Click Apply.

Why this matters: If G-Sync is not enabled here, it won’t work no matter what else is done. This setting controls whether G-Sync is active on your system.

Step 2: Confirm Monitor is Set as Primary Display

G-Sync usually only works on the primary display. To check this:

  1. Right-click on the desktop and select Display settings.
  2. Scroll down to the section titled Multiple displays.
  3. Select your G-Sync compatible monitor from the display list.
  4. Check the box labeled Make this my main display.
  5. Click Apply if changes are made.

Why this matters: G-Sync functionality often depends on the monitor being the primary display, especially if you have multiple monitors connected.

Step 3: Update NVIDIA Graphics Drivers

Outdated or corrupted drivers are a common cause of G-Sync problems. Follow these steps to update your drivers:

  1. Visit the official NVIDIA website: NVIDIA Driver Downloads.
  2. Enter your GPU model and Windows 11 as the operating system.
  3. Download the latest Game Ready Driver or Studio Driver, whichever suits your usage.
  4. Run the installer and follow on-screen instructions.
  5. Restart your computer after installation completes.

Alternatively, use the GeForce Experience app for automatic updates.

Why this matters: Drivers act as the communication bridge between your hardware and software. Keeping them updated ensures compatibility and fixes known bugs.

Step 4: Check DisplayPort Cable and Ports

G-Sync requires a reliable connection, and DisplayPort is the preferred cable type.

  • Ensure your monitor is connected via DisplayPort, not HDMI.
  • Try unplugging and re-plugging the cable to ensure a secure connection.
  • Test with a different DisplayPort cable if possible to rule out cable faults.
  • Use a different DisplayPort port on both the GPU and monitor, if available.

Why this matters: Faulty or unsupported cables can prevent G-Sync from activating, even if settings are correct.

Step 5: Disable V-Sync in Game Settings (Optional)

While G-Sync and V-Sync can work together, sometimes disabling V-Sync inside game settings can improve G-Sync performance.

  • Open your game’s graphics or display settings.
  • Find the Vertical Sync (V-Sync) option.
  • Turn it off or set it to disabled.
  • Restart the game and check if screen tearing or stuttering improves.

Why this matters: V-Sync can introduce input lag or conflicts with G-Sync, so disabling it helps isolate the issue.

Step 6: Use NVIDIA’s G-Sync Pendulum Demo for Testing

To confirm if G-Sync is working correctly, try using NVIDIA’s official test tool:

  1. Download the G-Sync Pendulum Demo from NVIDIA’s website or trusted sources.
  2. Run the demo in full-screen mode on your G-Sync enabled monitor.
  3. Observe the pendulum motion; if it moves smoothly without tearing, G-Sync is working.
  4. If tearing or stuttering persists, continue troubleshooting.

Why this matters: This demo is a controlled environment to test G-Sync without interference from other software.

FAQs

Q: Can G-Sync work over HDMI on Windows 11?

A: Most G-Sync features require DisplayPort. Some newer monitors support G-Sync over HDMI, but this is less common and may require updated firmware and drivers.

Q: Why does G-Sync only work in full-screen mode?

A: G-Sync is designed to operate in exclusive full-screen mode to directly control the monitor’s refresh rate. Windowed or borderless modes may not allow proper synchronization.

Q: Does FreeSync monitor support G-Sync?

A: Many FreeSync monitors are G-Sync Compatible, meaning NVIDIA cards can enable G-Sync features on those monitors. Check NVIDIA’s list of compatible monitors to confirm.

Q: How do I know if my monitor supports G-Sync?

A: Check your monitor’s specifications or visit the manufacturer’s website. NVIDIA also publishes a list of G-Sync and G-Sync Compatible monitors.

Q: My G-Sync option is grayed out in NVIDIA Control Panel. What should I do?

A: This usually means your monitor or connection doesn’t support G-Sync. Make sure you are using DisplayPort and that your monitor is recognized as compatible.

When Nothing Works

If you have tried all the above steps and G-Sync still isn’t working, consider these final options:

  • Contact NVIDIA Support: Visit NVIDIA Support for assistance.
  • Check monitor firmware updates: Some monitors require firmware updates to fix compatibility or performance issues.
  • Reset NVIDIA Control Panel settings: You can restore all NVIDIA settings to default and try enabling G-Sync again.
  • Test on another PC: This can help identify if the issue is with your system or the monitor.

Conclusion

Fixing G-Sync on Windows 11 often involves simple checks like enabling it in NVIDIA Control Panel, using the right cable, and keeping drivers updated. Starting with these basic steps can resolve most issues without complex troubleshooting.

Remember to verify your monitor compatibility and always run tests like the G-Sync Pendulum Demo to confirm if the problem is resolved. If problems persist, official support and firmware updates are your best next steps.

By following this guide carefully, you can enjoy smooth, tear-free gaming and video playback with G-Sync working as intended.

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