My 2¢ : prepend env QT_AUTO_SCREEN_SCALE_FACTOR=0 to your launcher. finished product launching an m3u or pls file will look like following: env QT_AUTO_SCREEN_SCALE_FACTOR=0 /usr/bin/vlc --started-from-file /home/USERNAME/Music/awesome.m3u works well. 43" 4K screen on NVIDIA X11 "Ubuntu 20...