With the introduction of 4K and other high-resolution monitors, especially on smaller displays and laptops, the IDEA display can be negatively affected. Some elements, including buttons, dialogs, and grid items, maybe sized incorrectly.
IDEA does not support DPI scaling (Windows 7) or display scaling (Windows 8.1 Update and
Windows 10). For high-resolution monitors/screens, it is recommended to adjust the screen
resolution for legibility.
In Windows 10, the user may enable the Override high DPI scaling behavior option. In the Properties for IDEA.exe OR in the Properties of a shortcut for IDEA.exe.
Go to Compatibility
Change high DPI settings
Check the Override high DPI scaling performed by option. This will enable the dropdown beneath where the System should be selected.
For earlier versions of Windows (8.1 and 7 SP1), the adjustment above may not be available. As such, some experimentation with screen resolution may be required.