Laptop freezes when switching from dGPU to iGPU. (MUX SWITCH)

[Dejva]

Hello everyone,

I'm having a major issue with my laptop, and it's really frustrating. I have a laptop with a MUX switch and was counting on this feature to extend battery life during light tasks.

Here’s a video showing how the issue looks. It's from about a year ago on a slightly different Lenovo LOQ model I had before, but the problem persists on my new model as well (I foolishly thought it was only present on my older model).
https://www.youtube.com/watch?v=6o4zQfY7W6c

Specs:
CPU: Intel Core i5-13500H (Raptor Lake)
Display: 15.6" IPS, G-Sync, 2560 × 1440, 165Hz
RAM: 16GB DDR5
GPU: NVIDIA GeForce RTX 4060 8GB (115W, MUX switch)
Storage: 1TB SSD
Issue:
The problem occurs when switching from dGPU to iGPU after gaming. Every time I launch a game, the system correctly switches to the dGPU, and everything runs perfectly. However, once I exit the game, the system switches back to the iGPU, and then my screen starts freezing in 5-10 second intervals for about 2-3 seconds at a time. This issue persists until I restart the laptop. After a reboot, everything works fine on iGPU—until I start another game.

This happens in all power modes (Silent, Balanced, Performance) and whether the laptop is plugged in or running on battery.

Troubleshooting I've Tried (Without Success):
✔ Used DDU to completely uninstall both iGPU and dGPU drivers, then installed the latest ones
✔ Updated BIOS to the latest version
✔ Disabled various power-saving settings
✔ Tested different GPU modes (MUX switch enabled/disabled, hybrid mode, dGPU-only mode)

The only way to avoid the issue is to run on dGPU-only mode, but that significantly reduces battery life by about 2 hours.

Has anyone else experienced this? Any solutions that worked for you? I'd really appreciate any advice.

Thanks in advance!

[JohnM_Intel]

Hello Dejva,

Thank you for posting this concern for me to better understand the issue you experienced. But for us to proceed with the troubleshooting, kindly answer some of my questions below for me to investigate this concern.

1. What is the make and model of the laptop?
2. Have you tried to do a clean installation of Windows?

And to further assist you, kindly provide an SSU for me to check the system information of your laptop.

1. Download Intel System Support Utility
2. Scan: Check the box Everything.
3. Click Scan.
4. Review: When finished scanning, click Next.
5. Click Save.

Best regards,

John Sergio M.

Intel Customer Support Technician

[JohnM_Intel]

Hello Dejva,

Posting this as a follow-up, How are you? Can you provide the SSU for me to help you and read the system information of your computer? If yes, kindly acknowledge this post.

Best regards,

John Sergio M.

Intel Customer Support Technician

[JohnM_Intel]

Hello Dejva,

I have not heard back from you, so I will close this inquiry now. If you need further assistance, please submit a new question, as this thread will no longer be monitored.

Best regards,

John Sergio M.

Intel Customer Support Technician