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

Rong Zhang
2026-02-10T18:49:32Z

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