What does “A TDR has been detected” mean? How to fix NVIDIA OpenGL driver error code 7? MiniTool covers answers to these questions in this full guide. Apply the given troubleshooting tips, and you should solve your issue.

A TDR Has Been Detected

Sometimes launching a program fails or an application suddenly freezes. On the screen, an NVIDIA OpenGL Driver error pops up saying, “A TDR has been detected. The application must close. Error code: 7”. What does this message indicate?

TDR stands for Timeout Detection and Recovery, and it's often linked with crashes. When the Windows system identifies a problem with the graphics card (taking too long to respond), the TDR feature attempts to recover from the frozen state by resetting the GPU. This action prevents the OS from freezing or becoming unresponsive.

How can you resolve the TDR detected error? Consider updating your graphics card driver, adjusting timeout settings, among other fixes. Afterward, your computer should run smoothly again.

#1. Update Graphics Card Driver

The occurrence of “A TDR has been detected” might be due to a GPU error. Maintaining updated drivers helps address this problem. Such updates may include bug fixes.

To fix NVIDIA OpenGL error code 7:

Step 1: Visit the NVIDIA website.

Step 2: Under the Manual Driver Search section, search based on your product type and download the identified driver.

Step 3: Execute the .exe file and proceed with installation as guided.

Afterwards, open your application to check if the error is resolved.

#2. Edit Registry to Increase the Timeout

You can extend the timeout duration, allowing more time for the GPU to handle heavy rendering tasks. To correct the TDR detected error code 7 using this method, follow these steps:

Tips: Prior to continuing, ensure you back up the operating system using MiniTool ShadowMaker or establish a restore point. This precaution is mainly because incorrect changes made to the Windows Registry could result in a system that won't boot.Step 1: Open Registry Editor by entering regedit in Windows Search, then pressing Enter.

Step 2: Copy and paste the following path into the address bar and press Enter: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers

Step 3: Right-click within the right panel, choose New > DWORD (32-bit) Value, and name the new entry TdrDelay.

Step 4: Double-click on TdrDelay, set its value data to 10, and click OK. This adjustment sets the timeout to 10 seconds.

#3: Reduce Graphics Load

If “A TDR has been detected” appears during intensive graphics processing, try lowering the graphics workload. For this, lower the resolution or detail settings in the game or application you're using. Additionally, shutting down unnecessary applications consuming graphics resources could help.

When aiming to disable resource-heavy processes or apps, launch Task Manager, navigate to Processes, select the item heavily utilizing CPU and RAM, and click End task.

Beyond this option, the trusted PC optimizer, MiniTool System Booster, is worth considering. Its Process Scanner function efficiently stops background processes consuming significant system resources. Importantly, this tool is specifically crafted to enhance PC performance by freeing RAM, boosting CPU efficiency, and accelerating hard drive speeds.

The End

Resolving “A TDR has been detected” can be straightforward using the solutions outlined above. Follow the instructions provided, and you shouldn’t encounter the TDR detected OpenGL driver error code 7 anymore.

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