https://bugs.kde.org/show_bug.cgi?id=473566

            Bug ID: 473566
           Summary: Touchpad setting does not expose "disable touchpad
                    when mouse is plugged in" option
    Classification: Applications
           Product: systemsettings
           Version: unspecified
          Platform: Ubuntu
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: kcm_touchpad
          Assignee: plasma-b...@kde.org
          Reporter: noloa...@gmail.com
                CC: natalie_clar...@yahoo.de
  Target Milestone: ---

Created attachment 161073
  --> https://bugs.kde.org/attachment.cgi?id=161073&action=edit
Missing option in Touchpad setting for Plasma 5.24.7

Hi Everyone,

This is a wishlist item. It came from a discussion in libinput's bug tracker at
https://gitlab.freedesktop.org/libinput/libinput/-/issues/924. In the 924 bug
report, there is a HP laptop with touchpad, and I want to disable the touchpad
when a mouse is plugged into the machine.

The KDE wish is, we need a UI setting to disable the touchpad when the mouse is
plugged in. libinput supports the configuration, but the KDE setting for
Touchpad does not expose it.

For libinput, this is the [manual] X11 option of interest. Many thanks to
@satrmb for the help in tracking it down:

```
$ cat /etc/X11/xorg.conf.d/30-touchpad.conf
Section "InputClass"
        Identifier "touchpad"
        Driver "libinput"
        MatchIsTouchpad "on"
        Option "SendEventsMode" "disabled-on-external-mouse"
EndSection
```

@satrmb is not sure what setting is needed for Wayland.

-----

I am using Kubuntu 22.04.3, x86_64, fully patched. Plasmashell version is
5.24.7.

I see some other "disable touchpad with Mouse plugged in" reports, but I
definitely do not have the setting. See, for example, 349545 and 415364.

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