Comment 109 for bug 1949394

Revision history for this message
In , dmitry.torokhov (dmitry.torokhov-linux-kernel-bugs) wrote :

(In reply to Mateusz Jończyk from comment #107)
> (In reply to Mateusz Jończyk from comment #106)
> > (In reply to Dmitry Torokhov from comment #104)
> > > The very first thing we do when probing PS/2 keyboard and/or mouse is
> issue
> > > GETID (F2) command. If the device does not respond with data that we
> > > consider valid keyboard or mouse ID we do not touch that device anymore.
> > It isn't true:
> Please excuse me for being so blatant.
>
> I can't swear that this output is from an unpatched kernel, but probably yes.

OK, you are right. Atkbd, when it does not get GETID response, also tries to toggle leds on the device.

Now the really weird thing is that we are asking for ID device on AUX port but apparently keyboard is responding to our query (with valid ID). It's like BIOS is really confused where to route the data.