Re: [PATCH 1/2] input: atkbd: add softleds quirk for broken EC PS/2 emulation

[Dmitry Torokhov]

Hi Rodnei,

On Sun, Jun 28, 2026 at 10:57:03PM -0300, Rodnei Cilto wrote:
> Some Lenovo IdeaPad laptops (e.g. 83RR/83SR, Wildcat Lake) implement
> PS/2 keyboard emulation via the Embedded Controller (EC) but do not
> fully support the AT protocol. Specifically, sending the SETLEDS
> command (0xED) after initialization causes the EC to return corrupted
> scancodes (reported as '**' in i8042.debug), rendering the keyboard
> non-functional.

"**" do not represent corrupted scancodes, they are safety measure to
not disclose your password on accident.

Use i8042.debug=1 i8042.unmask_kbd_data=1 to unveil real data.

Thanks.

-- 
Dmitry