Comment 2 for bug 1609204

From Win 8.1+, BIOS might use the new way to handle the power button, it's called intel virtual button.
BIOS should switch to the new way while detecting there is a driver which supports it, but in this case, BIOS switches to the new way no matter there is a driver for it or not. And once this case happens, the power button emits the keyevent only after pressing it for 6 seconds.
To fix it, we need this driver to be loaded and emits the keyevent once it's pressed.