SUMMARY Weird notification appearance change when using Synaptics input driver STEPS TO REPRODUCE 1. Install Synaptic input driver 2. In "Input" -> "Touchpad" options go to "Enable/Disable Touchpad" and check "Disable touchpad when mouse is plugged in" 3. Log out and back in OBSERVED RESULT Notification becomes a blue bar on top of the screen with white text EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Does the notification look like in the screenshot from https://bugs.kde.org/show_bug.cgi?id=374143? In that case its because the notification from the touchpad system were sent before the relevant part of Plasma was launched and we hit a fallback codepath. We have since reworked the relevant parts and it shouldn't be an issue any more