https://bugs.kde.org/show_bug.cgi?id=448795

            Bug ID: 448795
           Summary: Laptop touchpad sometimes doesn't work after login
           Product: plasmashell
           Version: 5.23.90
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: indecisiveautoma...@gmail.com
                CC: plasma-b...@kde.org
  Target Milestone: 1.0

SUMMARY
Sometimes my laptop touchpad doesn't work after logging in. It will work in
SDDM but will occasionally not work after logging in. This seems to have gotten
less and less prevalent with updates but still occurs regularly.

A few versions ago, a surefire way to reproduce this was to not touch the
trackpad when logging in. Then after logging in, the touchpad would not respond
to any input. Even then, it still had a chance to occur if you used the
touchpad before logging in, and even still does now, but when it happens is
seemingly random and not reliably reproducible.

I was waiting for some more fixes for Ryzen-based laptops as there were several
bugs relating to those, but as this still persists, perhaps it is a KDE bug.
This issue did not and does not occur for me when taking from sleep. Touchpad
input always works after waking from sleep in my tests over the last 9 months.

I have not tested X11 in several months, but it occurred on X11 and Wayland,
and still occasionally occurs on Wayland.


STEPS TO REPRODUCE
I cannot find a reliable way to reproduce, it seems to randomly occur after
login.

OBSERVED RESULT
Touchpad sometimes does not work after logging in, even if it works on SDDM.


EXPECTED RESULT
Touchpad works after logging in always.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.16.0-arch1-1
KDE Plasma Version: 5.23.90
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Tested on a Dell Inspiron laptop.

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