Tuesday, January 30, 2024

Re: Power usage in Dell XPS 17

On Tue, Jan 30, 2024 at 12:02:37PM -0500, Jag Talon wrote:
> Ah yes that's exactly my experience it looks like it might be the GPU at
> fault. Good to know I wasn't the only one experiencing this.
>
> Do people know if there's a way to somehow turn off the GPU outside of BIOS?
> Perhaps there's no way around that?
>
> On 1/30/24 11:54, Benjamin Stürz wrote:
>
> > I had the same issue with my TUXEDO Polaris 17 (AMD) w/ an RTX 2060M.
> > It was also not possible to disable the GPU in the BIOS,
> > so the battery life was miserable (45 min).
> >
> > That's why I later bought myself a used Thinkpad T450 and then a T480,
> > which both played very nice with OpenBSD.
>
> --
> Jag Talon
>
> https://weirder.earth/@jag
> https://jagtalon.net/
> https://aangat.lahat.computer/

One thing I did a while ago is made acpipwrres(4) issue an _OFF on the power
resoruce attached to the GPU. That worked on one machine, but failed on
another machine since that power resource also powered the screen. YMMV,
and you'd need to write that diff yourself in acpipwrres_attach().

-ml

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