keyboard not working in KDE

[davidryman]

Had the same problem. Keyboard stopped working on a single user, and only on KDE, so had to be a local issue. Thanks for solution.

DavidRyman.com

[ungnu]

Thanks for the tip. Turning off slow key solved my problem.

I see now it's a "feature" of KDE accessibility tool. I probably activated it by pressing the shift key for 8 seconds. This is the mesage I got after turning it off:

Warning - KDE Accessibility Tool
Do you really want to activate "Slow Keys"?

You held down the shift key for 8 seconds ...

There is an option to "Deactivate All AccessX Features & Gestures."

I also see an option to disable AccessX features in:

Control Center -> Regional & Accessibility -> Accessibility
Uncheck Activation Gestures -> Use gestures for activating sticky keys and slow keys.