Log with switching =================== Qt 6.4.2 (x86_64-little_endian-llp64 shared (dynamic) debug build; by MSVC 2022) QList() switchToHighDPIValue SetDpiScaling percentScaleToSet= 300 recommendedDpiScale= 100 relativeIndex= 7 constructed QGuiApplication #0 "PL2206W", geometry: QRect(0,0 960x600), 96DPI, dpr=1.75 switchToLowDPIValue SetDpiScaling percentScaleToSet= 100 recommendedDpiScale= 100 relativeIndex= 0 #1 "PL2206W", geometry: QRect(0,0 960x600), 96DPI, dpr=1 load #2 "PL2206W", geometry: QRect(0,0 1680x1050), 96DPI, dpr=1 Log with switching turned off ============================== Qt 6.4.2 (x86_64-little_endian-llp64 shared (dynamic) debug build; by MSVC 2022) QList("-d") constructed QGuiApplication #0 "PL2206W", geometry: QRect(0,0 1680x1050), 96DPI, dpr=1 load #1 "PL2206W", geometry: QRect(0,0 1680x1050), 96DPI, dpr=1