Is it possible somehow, to cgange the DPI scaling setting on Windows 10 IoT Core? On my Dragonboard 410c it is set to 150%, so UI controls are really large.
The DPI setting has been deprecated in Windows IoT Core. But generally you can change the resolution of the device(Raspberry Pi & MinnowBoard) via following options:
For Dragonboard 410c,you could take a look at the Windows IoT Display Drivers Guide here(https://developer.qualcomm.com/download/sd410/display-drivers-config-guide-windows10-iot.pdf). The Qualcomm DragonBoard 410c Windows 10 IoI-Core image only supports 1280x720 screen resolution. It has been noted that is possible to modify the BSP so as to support the higher resolution 1080p, but no other resolution.