JDK-8251912 : Windows: JavaFX Stage does not react to a change in the scale of its Screen
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: 8u261,9,10,openjfx11,openjfx15
  • Priority: P3
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2020-08-17
  • Updated: 2022-02-04
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8247839 - Wrong position of GUI elements using multiple HiDPI displays in JavaFX 8
Relates :  
JDK-8281058 - Windows: Scaling doesn't change when a display is unplugged
Description
To reproduce this, do the following on a Windows 10 system:

1. Run the attached FX application
2. While it is running, go into Settings and change the screen scale (e.g., from 125% to 175%)
3. BUG: the Window will not change its scale
4. Click on the ComboBox
5. BUG: The popup is not drawn in the right location

WORKAROUND: If you have a multiple screen setup you can drag the Window to the other screen and back, which will cause it to correctly react to the scale change.