By default, the Scheduler prevents the event text from wrapping. You can change it using eventTextWrappingEnabled property:
dp.eventTextWrappingEnabled = true;
You can also set custom event height if needed, just specify the height as part of event data:
dp.events.list = [{
id: "1"
start: "2016-01-01T09:00:00",
end: "2016-01-01T13:00:00",
text: "Event 1",
height: 40
}];