Is [1] the current, most recent work on supporting nvidia Optimus?
It seems to be fairly complete (aside from some stability issues) and frequently worked on.

-Matt

[1] https://review.coreboot.org/c/coreboot/+/28380

On Thu, Feb 20, 2020 at 2:28 PM Matt B <matthewwbradley6@gmail.com> wrote:
Hi,

As I understand it, the only thing missing with regard to nvidia dGPUs on Coreboot are the ACPI calls to turn them on and off at run-time, which is what Optimus is. Things like DRI_PRIME and similar work just fine as long as the dGPU is running, even under nouveau.

What is the current status of the work to get nvidia Optimus working? From what I gather there have been a couple of attempts and a recent restart, but I don't know what the current status of this work is.

I have heard that some laptops currently have the option to switch the dGPU on or off at boot-time. For which ones does this work?

If the work on Optimus is completed, what laptops are most likely to support it? My expectation is that turning the GPU on or off may be different for different laptops, even though the ACPI calls are the same, and so may not work everywhere.

Thanks,
    -Matt