https://bugs.freedesktop.org/show_bug.cgi?id=98505
--- Comment #16 from Peter Wu peter@lekensteyn.nl --- (In reply to Alex Deucher from comment #15)
(In reply to Peter Wu from comment #14)
[..]
The Windows 8 requirements state that the discrete GPU is render-only[0], but the Win10 reqs have no such requirement[1]. (Are these the same specs you had in mind? If not, could you share the right one?) On my new hybrid nvidia laptop, there are actually DP/HDMI ports to the dGPU (HDMI with audio).
I had access to the PR3 spec internally. I'm not sure if it's available publicly or not. Support for displays was not included in the information I saw or from talking with our internal hybrid graphics architects. It's possible the spec has been updated since I last talked to them earlier this year. I can double check.
Does your new laptop use PR3 or the older nvidia proprietary ACPI method?
The laptop (Clevo P651RA) uses PR3 (confirmed via a Windows 10 trace): https://github.com/Bumblebee-Project/bbswitch/issues/115#issuecomment-218622...
Have you been working on this or should I have a look?
I have not been. Please have a look. Thanks!
Ok, do you have any certainty about the earliest BIOS date where _PR3 is used? E.g. if the minimum date is lowered to 2014 without checking for _PR3, would it be likely to miss out some models?