Game crashes if launched fullscreen

Hello, I have issues with Fullscreen. The settings work fine for windowed mode, but if I launch the game fullscreen it doesn’t even start, appears a LWJGLException message. Here’s the Exception line in Eclipse.

SEVERE: Failed to create display
org.lwjgl.LWJGLException: Failed to set display mode (-2).
at org.lwjgl.opengl.WindowsDisplay.nSwitchDisplayMode(Native Method)
at org.lwjgl.opengl.WindowsDisplay.switchDisplayMode(
at org.lwjgl.opengl.Display.switchDisplayMode(
at org.lwjgl.opengl.Display.create(
at org.lwjgl.opengl.Display.create(
at com.jme3.system.lwjgl.LwjglDisplay.createContext(
at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(
at Source)

The fact is, the game works in fullscreen if I’m on my laptop (1920x1080) but if I attach it to a bigger display with the same resolution (1920x1080, double-checked to be sure), it crashes.

What can I do? Turning off anti-aliasing or OPENGL_1, already tried, don’t work.

Have you tried some other game in fullscreen on that external monitor?
Just to make sure it’s LWJGL and not something with your configuration. Laptops sometimes have funny wiring, e.g. the 3D card might not even be connected to the external jack.

You can only use resolutions that the display you want to use supports, I guess you are stting it manually instead of using the settings window which only displays resolutions that do work.