Re: [BUG] bitland-mifs-wmi: Power profiles not working on Xiaomi Mi NoteBook Ultra

Mingyou Chen <[email protected]>
Newsgroups org.kernel.vger.platform-driver-x86
Message-ID <[email protected]>
On 8/16/26 5:51 PM, Bheda Rahul wrote:
>
> I installed your patch, but the behavior is still the same. However, I 
> noticed something new.
>
> When I press *F9*, which controls the keyboard backlight with three 
> levels — *Off, Medium, and Full* — the GNOME on-screen display appears 
> only when transitioning from *Full → Off*. When switching between the 
> other levels, nothing happens.(this does not happen before no osd is 
> there).
>
> rahul@fedora ~> sudo systemctl stop tuned
> [sudo] password for rahul:
> rahul@fedora ~> cat /sys/firmware/acpi/platform_profile
> balanced
> rahul@fedora ~> cat /sys/firmware/acpi/platform_profile_choices
> low-power balanced balanced-performance performance
> rahul@fedora ~> echo low-power | sudo tee 
> /sys/firmware/acpi/platform_profile
> low-power
> rahul@fedora ~> cat /sys/firmware/acpi/platform_profile
> balanced    am i missing something
>
Those patches were written with AI assistance, and I do not have a 
Xiaomi or Redmi laptop on hand.

I believe further reverse engineering work is required.

I made a mistake in the patches, the DMI vendor of Xiaomi devices are 
not "Xiaomi", please change it to "TIMI" (from your dmidecode.txt 
attachment) and retest the driver. (or use patch v6 that I sent to the 
mailing list)

And please use the Reply All feature in your mail client, otherwise 
others will not receive your email.
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