QT and HiDpi configuration to change icon fonts size in applications

If you are using an application with QT interface, probably you will see icons or fonts very large like zoom or vidcutter.





To solve it, just add the following QT values in /etc/environment

export QT_AUTO_SCREEN_SCALE_FACTOR=0
export QT_SCALE_FACTOR=1

To choose the better values you can test them executing the following command:

env QT_SCALE_FACTOR=0.5 QT_AUTO_SCREEN_SCALE_FACTOR=0 app

, where app is the application with visualization issues such as vidcutter

UPDATE: This steps also works for Zoom, tested on Ubuntu 19.04

Enjoy it!

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