SUMMARY When I open Marble on 4K display, maps are very blurry a and user experience is not very nice. STEPS TO REPRODUCE 1. Open Marble on 4K display OBSERVED RESULT Maps are blurry EXPECTED RESULT Maps should by sharp. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Manjaro Stable KDE Plasma Version: 5.21.4 KDE Frameworks Version: 5.81.0 Qt Version: 5.12.2
So, Is there any plan to match marble widget with devicepixelratio as gwenview did? I have tested a lot of workarounds such as using QT_SCALE_FACTORS, but this will carry some other ui bugs( not relevant here)
Digikam internally uses Marble to show geolocated oictures on a map. I noticed that problem too. I reported it with more details and some screenshots in this Bug #459194. I hope it helps.