How to Fix Call of Duty Dev Error 6065

The game often crashes during map loading or when selecting a mode, showing the message “DirectX encountered an unrecoverable error: Dev Error 6065.” This usually happens after shaders are compiled or during parts of the game that put a lot of stress on the graphics card. Dev Error 6065 means there is a problem with DirectX, often caused by the graphics card being unstable or running out of memory.

The main cause is having graphics settings that are too high for your graphics card, using more video memory (VRAM) than the card has available. This is especially common with cards like the RX 580 or GTX 1660. Other possible reasons include outdated drivers, software overlays interfering with the game, or issues with fullscreen optimizations. To fix this, try lowering your graphics settings, updating your drivers, and turning off overlays or fullscreen optimizations.

Before moving on to specific solutions, here are some basic steps that might help fix the issue:

1. Restart your computer.
2. Run both the game and its launcher as an administrator.
3. If you are using multiple displays, try using only one monitor.
4. Make sure your Windows and drivers are up to date.
5. Reinstall DirectX.
6. Disable your antivirus and turn off your firewall to see if they are causing the issue.
7. Uninstall and reinstall your graphics driver.
8. Try to lower the clock speed of your system. These guides on overclocking for beginners and how to safely overclock your GPU can provide more insight.
9. Disable any performance monitoring apps like MSI Afterburner and programs with overlays such as Nvidia’s GeForce Experience. You can also clean boot your system to check if another application is causing the problem.

If the issue continues, try the solutions below.

1. Disable G-Sync (NVIDIA Card Users)

G-Sync is a feature that helps eliminate screen tearing when your GPU sends more frames than your display can handle. While it can be helpful, G-Sync can sometimes cause gaming errors like Dev Error 6065. Disabling G-Sync can often resolve the issue.

1. Exit the game.
2. Open your NVIDIA Control Panel.
3. In the left pane, expand Display and click on Set up G-Sync.
4. In the right pane, uncheck the option Enable G-Sync.

   

5. Relaunch Call of Duty and check if the Dev Error 6065 still appears.

2. Disable Full-Screen Optimizations

Windows 10 includes a feature called “Full-screen optimization“, which is intended to improve app and game performance in full-screen mode. However, this feature can sometimes create problems for some games. Disabling it might resolve Dev Error 6065.

Close the game completely, making sure to end any related processes in Task Manager. Here’s how, using the Blizzard client as an example:

1. Start the Blizzard Battle.net client.
2. In the right pane, find and select the Call of Duty icon.
3. From the game’s menu, click on Options and then Show in Explorer.

   

4. In the game’s installation folder, find the .exe file for Call of Duty. Right-click it and choose Properties.
5. Go to the Compatibility tab.
6. Check the box for “Disable Full-Screen Optimizations,” then click Apply and OK.

   

7. Launch the game and see if it now works properly.

3. Adjust the Call of Duty Folder

Call of Duty saves its settings in the “Players” and “Players 2” folders inside its main documents folder. If the configuration files in these folders are corrupted, it could cause Dev Error 6065. Renaming these folders forces the game to recreate them with default settings.

1. Exit the game completely and end any related processes using Task Manager.
2. Open File Explorer and navigate to the Call of Duty documents folder, typically found at:

   Documents\Call of Duty (your game version) \

3. Find the Players and Players 2 folders and rename them.

   

4. Relaunch the game and check if the issue is fixed.
5. If not, exit the game again.
6. Return to the Call of Duty documents folder, and back up all its contents somewhere safe.
7. After backing up, delete all the contents of the Call of Duty folder.
8. Launch the game and check if it works now.

4. Scan and Repair Call of Duty’s Game Files

Corrupted game files can cause many issues, including Dev Error 6065. Most launchers, including the Blizzard client, have a feature to scan and repair game files.

1. Start the Blizzard app.
2. In the left pane, select Call of Duty.
3. Click on Options and then choose Scan and Repair.

   

4. Click Begin Scan.
5. The launcher will scan your game files and download any that are missing or corrupted.
6. Once the process is complete, restart the game to see if it works.

5. Adjust Graphics Card Settings and Drivers

Misconfigured graphics card settings or drivers can also lead to Dev Error 6065. Try the following:

5.1. Disable Extra Graphics Card

If your computer has both an integrated and a dedicated graphics card, disabling the integrated card might fix the problem.

1. Exit the game.
2. Disable the integrated graphics card (requires administrator access).
3. Restart the game to see if the issue is resolved.

5.2. Roll Back Graphics Drivers

If Dev Error 6065 started after updating your graphics card’s drivers, reverting to a previous version may help.

1. Exit the game and any graphics card control panels that are open.
2. Roll back NVIDIA drivers to a previous stable version. The steps are similar for other brands.
3. Launch the game and check for improvements.

5.3. Edit the Config.cfg File

The “Config.cfg” file stores your game’s configuration. Incorrect graphics card entries here can trigger errors.

1. Exit the game.
2. Open the Players folder for Call of Duty (as explained in Solution 3).
3. Open the Config.cfg file with Notepad.

   

4. Scroll to the bottom of the file to locate your graphics card name. For example, it might say “NVIDIA GeForce GTX 1080 Ti (0x10de…)” as in the example shown.

   

5. Copy the name (for example, “GeForce GTX 1080 Ti”).
6. Scroll to the top of the file and whenever you spot your graphics card’s name (or a similar placeholder), replace it with the copied name (only replace the card name, not the numbers or settings).

   

7. Save the file and close Notepad.
8. Relaunch the game and check if Dev Error 6065 is gone.

6. Adjust the Game’s Graphics Settings

Sometimes Call of Duty may not run well if all graphics settings are maxed out, especially on certain systems. Try running the game on its default settings, or apply the following changes. If Dev Error 6065 happens as soon as you launch the game, you can start in Safe Mode (when prompted after a crash, select “Yes”).

1. Run the game, go to game options, and change the following graphics settings:
2. Resolution (Graphics Tab): 1920 x 1080
3. Render Resolution (Graphics Tab): 100
4. Sync Every Frame (V-Sync) (Graphics Tab): Disabled
5. Nvidia Highlights (Graphics Tab): Disabled

   

6. Display Mode (Graphics Tab): Fullscreen Borderless

   

7. Shadow Map Resolution (Graphics Tab): Normal
8. Cache Spot Shadows (Graphics Tab): Disabled
9. Cache Sun Shadows (Graphics Tab): Disabled
10. Ray Tracing (Shadow & Lighting): Disabled

    

11. Anti-aliasing (Post Processing Effects/Global Settings): Disabled
12. World Motion Blur (Graphics Tab): Disabled
13. Weapon Motion Blur (Graphics Tab): Disabled

    

14. Texture Resolution (Graphics Tab): Normal (setting it higher may cause Dev Error 6065).
15. Tessellation (Global Settings): Disabled
16. Particle Quality (Textures Section of Graphics Tab): Low

    

17. Particle Lighting (Shadow and Lighting Section of Graphics Tab): Low

    

18. Crossplay (Account Tab): Disabled

    

19. Server Latency (Telemetry Section of the General Tab): Enabled

    

If the problem continues, try setting the Texture Resolution to “Low”, the Frame Rate Limit to 60, and Shadow Map Resolution to “Low”.

7. Reinstall the Game

If none of the above steps worked, it may be necessary to uninstall and reinstall Call of Duty. Although this isn’t ideal due to the size of the game and download time, it can fix stubborn problems.

1. Open the Blizzard app and, in the left pane, select Call of Duty.
2. Click Options and then Uninstall Game.

   

3. Follow the prompts to uninstall the game.
4. Restart your computer.
5. Open the Blizzard app and reinstall Call of Duty.
6. After installation, launch and play the game to see if the issue has been resolved.