Re: upstream linux cannot achieve package C8 power saving

From: brett hassall
Date: Wed Aug 30 2023 - 16:49:43 EST


Hi

Ok, I will read into working up a formal patch.

Thanks for the reply.

Brett


On Wed, 30 Aug 2023 at 11:11, Bagas Sanjaya <bagasdotme@xxxxxxxxx> wrote:
>
> Hi,
>
> I notice a bug report on Bugzilla [1]. Quoting from it:
>
> > v6.5 (and at least v5.15, v5.19 and v6.4 as well) will not go to a higher power saving level than package C3.
> >
> > With the inclusion of a patch that combines 3 Ubuntu commits related to VMD ASPM & LTR, package C8 is used.
>
> See Bugzilla for the full thread.
>
> FYI, the attached proposed fix is the same as Brett's another BZ report [2].
> I include it for upstreaming.
>
> To Brett: Would you like to submit the proper, formal patch (see
> Documentation/process/submitting-patches.rst for details)?
>
> Thanks.
>
> [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217841
> [2]: https://bugzilla.kernel.org/show_bug.cgi?id=217828
>
> --
> An old man doll... just what I always wanted! - Clara