GPU Troubleshooting and Detection

When running VStitcher, you may sometimes encounter a prompt indicating that the application is using an Integrated Graphic Processor Unit (iGPU) rather than your main, dedicated GPU. This scenario can occur on laptop computers that are set to Power Saving Mode or on desktop computers where the system defaults to the integrated graphics instead of a dedicated GPU (e.g., NVIDIA or AMD).

Below is an example of the notification you might see:

Why This Happens

Laptop Power Saving Mode

• Many laptops automatically switch to the iGPU to conserve battery power.
• If the laptop is in Power Saving Mode, or configured to prefer the iGPU, VStitcher may detect and use the integrated GPU rather than the dedicated GPU.

Desktop Default GPU Settings

• On some desktop PCs, the integrated graphics might be enabled by default in the BIOS or system settings.
• If the dedicated GPU drivers are not correctly installed or are disabled, the system could default to the iGPU.

Driver or Configuration Issues

• Inconsistent GPU driver updates or incorrect system configuration can cause VStitcher to fail to detect the dedicated GPU and instead run on the iGPU.

Using an unsupported GPU can lead to:

• Decreased Performance
• Instability
• Unexpected Application Behavior

Therefore, it is important to verify which GPU VStitcher is using and, if necessary, follow the recommended steps to switch to your main GPU.

How to Resolve the Issue and Use the Main GPU

1. Change Power Mode on a Laptop
   1. Open your system’s power settings and ensure that you are in High Performance or Balanced Mode, rather than Power Saving.
   2. In Windows, for example, you can adjust this in the Control Panel > Power Options or the Windows Settings > System > Power & Sleep menu.
2. Configure Graphics Settings
   1. On Windows 10 or later, you can go to Settings > System > Display > Graphics Settings.
   2. Select VStitcher from the list of apps, then choose High Performance to force the application to use the dedicated GPU.
3. Update or Reinstall GPU Drivers
   1. Ensure your GPU drivers are up to date by visiting the GPU manufacturer’s website (e.g., NVIDIA, AMD).
   2. Outdated or corrupt drivers may cause improper GPU detection.
4. BIOS Settings (Desktop)
   1. If you have a desktop computer with both an iGPU and a dedicated GPU, ensure the primary display adapter is set to the dedicated GPU in your BIOS settings.
   2. Consult your motherboard manual or manufacturer’s website for specific steps.
5. Restart VStitcher
   1. After making any changes (power settings, GPU settings, or driver updates), always restart VStitcher to confirm it now detects and uses the dedicated GPU.