[systemd-bugs] [Bug 78408] USB and DMI keyboard mappings behave differently

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78408

Kay Sievers <kay at vrfy.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTABUG

--- Comment #9 from Kay Sievers <kay at vrfy.org> ---
(In reply to comment #7)
> Also, since all the examples begin to work as expected as soon as the
> original key from which the scancode belonged to has its keycode remapped
> to another scancode, I thought the udev team might like to investigate a
> little so we might have the mapping rules have the principle -- if feasible
> for you guys.

Actually, that the AT keyboard allows to map two distinct keys to the
same code is more a bug in the AT driver than a missing feature of the
USB hid driver.

Try to press CTRL-left and CAPS LOCK at the same time, then release one of
them; now you still have CTRL physically pressed, but nothing will recognize
it. What looked "working", just turned into seriously broken now.

Udev should not try to support anything like that, it makes no sense; the
details are explained in David's comment.

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