I had to turn off gpu switching in my bios on the old laptop every time I wanted to play due to this.
nVidia or ATI?
I understood that with nVidia you could do this per application in the driver settings... or definitely at the very least enable/disable it globally there. A BIOS setting would kind of suck. :-/
It's unclear why lwjgl-based games seem to have problems getting the auto-switch behavior to trigger properly.
Sorry Paul I didnt see this when you posted it. It is a AMD mobile card If you find my first post it explains the situation. The solution was to disable dynamic GPU switching in my bios.