Quote from: WayneZ on August 18, 2023, 03:35:48Are the outputs wired to the dGPU or iGPU? Pretty important detail and very difficult to find every time! Lenovo (and all manufacturers; bastards)!
Not really difficult to find, it's both in BIOS and on PSREF; there is a MUX switch. Check the screenshot:
https://imgur.com/qME9nppSelect Discrete = dGPU bypass the iGPU, laptop uses only dGPU. Select Hybrid = enables Optimus (screen is always connected to the iGPU regardless if dGPU or iGPU is being used).
It's also available in Lenovo Vantage, you don't have to go into the BIOS every time. Switching between Discrete and Hybrid requires a reboot.