SUMMARY Running Ubuntu-mate 20.04.2 on Pi 4 with "Official 7 inch touchscreen display" which is 800x400 pixels, and compiled 3.5.3 Beta. Many dialog boxes are too big for this small display. STEPS TO REPRODUCE 1. Install Ubuntu-mate 20.04.2 on Pi 4 with Official 7 inch touchscreen display. 2. Clone and build from 3.5.3 Beta code at https://github.com/KDE/kstars OBSERVED RESULT Many Ekos Dialog boxes are cut off beyond the 800x400 display. Can't click "ok", for instance. EXPECTED RESULT Dialogs need QScrollArea and scroll bars to be usable on a small display. I modified the .ui files and built a workable kstars on the 800x400 display. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Ubuntu-mate 20.04.2 (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: 5.12.8 ADDITIONAL INFORMATION kstars/ekos otherwise work well on the Pi 4, 800x400 display. Performance is quite reasonable. I believe this hardware is worth supporting.
KDE Frameworks 5.68.0
800x400 is definitely not supported. Minimum height should be 800 pixels. It would take a tremendous effort to cater to this display.