Help with a monitor

Ok guys i just got this Acer flatscreen its the X183H.... Ok now the problem is and i find this weird but it does NOT goto standby or power saving mode when i turn off my computer it just says cable not connected and it does not goto power saving mode...... i want to know if this is normal becuase i NEVER had a monitor not go into power saving mode when i turned off my pc. So is there anything i can do to fix this or is it just the way it is?

It's just the way it is. A lot of monitors have this.