Created attachment 799301 [details]
LibreCAD with scaling on second, FHD monitor

Hello! I wanted to disable entirely scaling for QT apps in my OpenSUSE
Tumbleweed installation, but I can't. Any of the QT_AUTO_SCREEN_SCALE=0 or
other flags don't want to work for me.
Steps to reproduce:
1) Install any QT app on non-KDE installation of OpenSUSE Tumbleweed, for
examle, LibreCAD on laptop with HiDPI display, like 4k resolution in 15,6"
screen.
2) Try to run it with flags that disable QT scaling
Expected result:
LibreCAD or other QT based app should work without scaling at all.
Actual result:
Flags are ignored, It don't want to scale properly, even chaning
QT_SCALE_FACTOR to less than 1 results in messed up app window.
Additional information:
My laptop is Dell Precision 5510 with 4k display on 15.6" screen.
Attachment shows why I want to disable QT scaling entirely. Second Attachment I
will add after that post.