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A comment on After protest, Lenovo adds Linux compatibility to Yoga 900 and 900S laptops. Parent comment

Re:After protest, Lenovo adds Linux compatibility to Yoga 90... by wtallis on Wednesday November 09, 2016 @01:29PM (#12913121)
> "and AHCI gives a slight performance decrease from their default RAID configuration."

Is that actually true, or is it really that using Microsoft's AHCI driver instead of Intel's driver hurts performance? Last time I checked, Intel's driver could be used even when the controller is in AHCI mode.

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Re:After protest, Lenovo adds Linux compatibility to Yoga 90... by qb45 on Wednesday November 09, 2016 @03:32PM (#12914332)
I've seen speculation that it's about forcing Intel's custom driver which supports some nonstandard power management features.

https://mjg59.dreamwidth.org/44694.html

Apparently, there isn't much difference between AHCI and RAID modes in the hardware itself.

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