https://bugs.kde.org/show_bug.cgi?id=519755

Nate Graham <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|systemsettings              |kwin
            Summary|"Toggle Touchpad" key does  |"Toggle Touchpad" key on
                   |not change state of the     |some keyboards send
                   |touchpad                    |KEY_TOUCHPAD_TOGGLE as well
                   |                            |as KEY_LEFTCTRL +
                   |                            |KEY_LEFTMETA + KEY_F24,
                   |                            |causing the touchpad
                   |                            |toggling to not work
          Component|kcm_keys                    |input
                 CC|                            |[email protected],
                   |                            |[email protected]
           Assignee|[email protected]    |[email protected]

--- Comment #4 from Nate Graham <[email protected]> ---
> Alongside the valid KEY_TOUCHPAD_TOGGLE ACPI event, the firmware 
> simultaneously fires a
> hardcoded legacy Windows macro consisting of KEY_LEFTCTRL + KEY_LEFTMETA + 
> KEY_F24 over
> the standard AT Translated Set 2 keyboard bus.
Yep, that's the bug all right.

As such, it's tempting to say this is a hardware issue. However I know that's
not going to be a very satisfying answer. Let's see what the KWin folks think
about this whole sad situation.

Perhaps it would need to be fixed in Qt, xkb, or even the kernel, so that
pressing this key only sends KEY_TOUCHPAD_TOGGLE on Linux.

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