In Ubuntu Xenial, with the proposed packages (1.2.0-0ubuntu0.16.04.3), running with the laptop plugged I get:
$ sudo iwconfig wlan0 | grep "Power Management" Power Management:off
And with the laptop unplugged:
$ sudo iwconfig wlan0 | grep "Power Management" Power Management:on
In Ubuntu Xenial, with the proposed packages (1.2.0- 0ubuntu0. 16.04.3) , running with the laptop plugged I get:
$ sudo iwconfig wlan0 | grep "Power Management"
Power Management:off
And with the laptop unplugged:
$ sudo iwconfig wlan0 | grep "Power Management"
Power Management:on