[Bug 221065] ideapad_acpi: unexpected charge_types spam on Yoga Pro 7 14ASP9

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221065

--- Comment #7 from Avraham Hollander (anhollander516@gmail.com) ---
(In reply to Rong Zhang from comment #6)
> Hi Avraham,
> 
> On Tue, 2026-02-10 at 17:56 +0000, bugzilla-daemon@kernel.org wrote:
> > https://bugzilla.kernel.org/show_bug.cgi?id=221065
> > 
> > Avraham Hollander (anhollander516@gmail.com) changed:
> > 
> >            What    |Removed                     |Added
> >
> ----------------------------------------------------------------------------
> >                  CC|                            |anhollander516@gmail.com
> > 
> > --- Comment #3 from Avraham Hollander (anhollander516@gmail.com) ---
> > I'm also seeing this on an IdeaPad 5 2-in-1 14AHP9 (83DR),  after upgrading
> > to
> > Linux 6.19.
> > 
> > I'll attached dmesg and acpidump, but this is not a vanilla kernel, so take
> > it
> > with a grain of salt. This kernel doesn't have debugfs, so I can't provide
> > that.
> 
> Thanks for your dmesg and acpidump. I will find some time looking into
> them.
> 
> As for debugfs, every major distribution have it enabled [1] and so do
> any sane downstream kernel. debugfs can only be accessed by the root
> user by default. Did you try with the root user (e.g., `sudo -i')?
> 
> [1]: https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DEBUG_FS
> 
> And since you are using a downstream kernel, could you provide a link
> to its website or so? So that I can check if it's the root cause
> (though unlikely).
> 
> > /sys/class/power_supply/BAT0/charge_types is [Fast] Standard Long_Life.
> > 
> > /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode is 0.
> > 
> > I'm using the BIOS default charging configuration and haven't set up any
> > weird
> > ACPI stuff, afaik.
> 
> Thanks,
> Rong

I build my own kernel with a selection of out-of-tree patches
(https://github.com/Frogging-Family/linux-tkg) and a heavily tuned
configuration, which indeed doesn't have debugfs. I don't mind building a
vanilla kernel with debugfs; I have just been using my laptop and haven't had
the time too. Probably later today.

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