On Wed, Aug 26, 2020 at 3:09 PM Artem Bityutskiy <dedeki...@gmail.com> wrote: > > On Wed, 2020-08-26 at 15:03 +0200, Guilhem Lettron wrote: > > On Wed, 26 Aug 2020 at 14:43, Rafael J. Wysocki <raf...@kernel.org> wrote: > > > On Wed, Aug 26, 2020 at 2:05 PM Guilhem Lettron <guil...@barpilot.io> > > > wrote: > > > > Use the same C-states as SKL > > > > > > Why is this change needed? > > > > On my laptop, a Dell XPS 13 7390 2-in-1 with i7-1065G7, ACPI only > > report "C1_ACPI", "C2_ACPI" and "C3_ACPI". > > Did you try to dig into the BIOS menus and check if you can enable > more/deeper C-states?
I would be surprised if there were settings for that in the BIOS, as Windows only expects #1, C2 and C3 AFAICS. It might be possible to disable C1E autopromotion, but that option is not likely to be available on a laptop. Cheers!