https://bugs.kde.org/show_bug.cgi?id=414315

            Bug ID: 414315
           Summary: Touchpad select dropdown is disabled even if more than
                    one touchpad is present
           Product: Touchpad-KCM
           Version: unspecified
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: kcm
          Assignee: atulbish...@gmail.com
          Reporter: tamius....@gmail.com
  Target Milestone: ---

Created attachment 124020
  --> https://bugs.kde.org/attachment.cgi?id=124020&action=edit
xinput shows two touchpad — HAILUCK and Elantech, but touchpad module in system
settings only detects one

SUMMARY
When my laptop is docked, I tend to use external touchpad and keyboard.
However, the dropdown menu for selecting the touchpad I want to configure is
disabled even after I've attached the second touchpad.

If I plug in touchpad before boot or while laptop is in sleep, settings module
will select the HAILUCK touchpad and gray out the 'Device' dropdown. EXPECTED
BEHAVIOUR: 'Device' dropdown is not disabled and allows me to choose the
touchpad I want to configure.

This is a problem because if I plug the touchpad in _after_ boot/wakeup/login,
the Elantech touchpad will be selected and I will not be able to configure the
right touchpad.

STEPS TO REPRODUCE
1. Have a laptop with a touchpad
2. Plug in a second (external, USB) touchpad
3. open touchpad settings

OBSERVED RESULT
'Device' dropdown menu is greyed out and I am unable to select which touchpad I
want to configure.

EXPECTED RESULT
'Device' dropdown menu is not greyed out. I should be able to select my
touchpad.

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.17.3
KDE Frameworks Version: 5.64.0
Qt Version: 5.13.2
Kernel Version: 5.3.11-1-MANJARO
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-4720HQ CPU @ 2.60GHz
Memory: 15,6 GiB of RAM


ADDITIONAL INFORMATION
n/a

See screenshot for bug demonstration.

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