Hello! My name is Mostafa, and I will try my best to assist you with this so that you find a satisfactory solution.
I’m sorry that you are experiencing this issue. When you connect an external monitor to your laptop during a heavy task, it should automatically switch.
Please follow the steps below:
- Right-click on the desktop and select "NVIDIA Control Panel" from the menu.
- In the NVIDIA Control Panel, click on "Configure Surround, PhysX."
- Under the "PhysX Settings" tab, select your external display from the drop-down menu under "Display."
- In the same window, under "PhysX Configuration," select "Auto-select (recommended)."
- Click "Apply" to save your changes and close the NVIDIA Control Panel.
- Restart your laptop to apply the changes.
Ensure you have updated your GPU to the latest version and your Monitor support G-sync.
You can disable integrated GPU by going to Device Manager.
I hope the above steps helped you. In case of additional questions, reach out back to me, and I will be happy to help and try my best to resolve your issue. Thank you.
Best,
Mostafa