[Bug 221583] Lenovo 82KU: keyboard backlight works via Fn+Space but no kbd_backlight LED device exposed

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221583

--- Comment #42 from Rong Zhang (i@rong.moe) ---
(In reply to George from comment #40)
> Thank you so much! How do I close this issue?

You are welcome!

There is a drop-down box to update the "Status:" of the issue just below the
bug title. Select "RESOLVED" and then "ANSWERED", then click "Save Changes.

(In reply to George from comment #41)
> By the way, is there someone at Lenovo I could contact to ask what exactly
> causes the keyboard to switch to the “high” state? I believe Lenovo has
> started supporting LVFS, so maybe there’s a way to get more detailed
> information or firmware insights through them?

If you really want to contact someone from Lenovo, Mark Pearson
<mpearson-lenovo@squebb.ca> is active on LKML.

However, Lenovo only supports Linux for specific devices, mostly ThinkPad
devices. Since your device is branded as an IdeaPad, Lenovo usually doesn't
provide any support unless the same issue exists on Windows. But on the other
hand, Lenovo will consider it "not an issue" if your device has never been
advertised to be able to adjust keyboard backlight brightness via software...

Sidenote: your device will reach "End of Support" on 2027-03-19 [1]. It's
unlikely to receive any BIOS updates unless there are critical vulnerabilities.

[1]: https://psref.lenovo.com/WDProduct/IdeaPad/IdeaPad_3_15ALC6

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