Comment # 16
on bug 98505
from Peter Wu
(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-218622306 > > 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?
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