When the stencil buffer is enabled, dragging a window between screens causes the gfx viewport to freeze. Moving it back to the original screen does not restore the rendering.
This can be reproduced by compiling the sample app OneTriangleAWT and enabling the stencil buffer on the GLCapabilities object before allocating the GLCanvas.
Reverting the JOGL version from 2.3.2 to 2.3.1 fixes the issue.
See this forum post for more details:
Created attachment 770 [details]
Runtime Version Check (test.log)