I've only recently upgraded to Ubuntu 15.04 from 14.04 and I noticed, unlike 14.04, my wireless power manager was turned on by default. It turns off ok with the

sudo wlan0 power off

But is back on after reboot. I've hunted for a solution and have tried the solutions on this page here: Power management for wireless unable to turn off in Xubunu 15.04 Vivid but none of it works. Here's a print out of my iwconfig output, any help would be appreciated...

wlan0     IEEE 802.11abg  ESSID:"Pretty Fly For A Wifi"  
      Mode:Managed  Frequency:2.437 GHz  Access Point: E0:75:7D:D5:06:A0   
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Power Management:on

1 Answer 1


Try to do a clean install and see if your problem persists. It should be solved on a clean install. Backup your data first and then do a fresh Ubuntu 15.04 install.

  • Hi, thanks for your answer, this is a full fresh install that I only did last night, the only things I've done is install my usual collection of programs and update the system May 10, 2015 at 14:47

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