Question about screen resolution, dpi and font size

[ars]

Hello,

I had the same problem using a 4k monitor and Qt 5.5 under Windows 10. As a temporary workaround I installed a file qt.conf into the application binary folder with following content:

[Platforms]
WindowsArguments = dpiawareness=0

[Platforms]
WindowsArguments = dpiawareness=0

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With this setting Windows scales the whole application (fonts + graphics). Drawback of this approach: the fonts do not look as crisp as possible, but it is acceptable for scalings of 125-150%.

Qt 5.6 should provide better dpi awareness. I tried it a few months ago with a Qt 5.6 beta version and without installing the qt.conf file. The result was better than with version 5.5, but still not perfect. Hopefully it has improved for the released version, but I have not checked it up to now.

Best regards
ars