OS: OpenSuSE TumbleWeed, XFCE 4.14, with HiDPI display, Font size @144DPI
GTK Programs UI are all fine.
QT_SCALE_FACTOR=1
if set in /etc/environment
QT_AUTO_SCREEN_SET_FACTOR=0
QT_SCALE_FACTOR=1.00
kate, keepassxc, KAddressBook, KTnef, KNotes... UI fonts are HUGE, like (144 * 144/96) DPI that huge, redundantly scaled.
KSuduku, KCalc, KCharSelect... UI font size are as expected.
QT_SCALE_FACTOR=0.75
if set in /etc/environment
QT_AUTO_SCREEN_SET_FACTOR=0
QT_SCALE_FACTOR=0.75
kate, keepassxc, KAddressBook, KTnef, KNotes... UI fonts are fine.
KSuduku, KCalc, KCharSelect, SMplayer, QPdfView... UI are corrupted. Menu items shifted, element and font size/position not match, elements overlapped...
