Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I noticed that, when I unplugged my laptop, or closed/opened the lid, my wireless connection dropped, every time.

I tracked it down to pm-powersave, and made it stop, see below.

This could also cause repeated requests for network passwords.

share|improve this question
Please post your solution as an answer to this question instead of including it in your question. – N.N. Oct 13 '11 at 6:27
Thanks for pointing that out. I fixed it. – waltinator Oct 13 '11 at 20:15
Well done, that's the way to self-document, woo! – Jorge Castro Oct 13 '11 at 20:21
up vote 11 down vote accepted

I've found that /usr/sbin/pm-powersave turns OFF my wireless card when I switch to battery or suspend by closing the laptop's lid. I've gotten wireless to stay up between hibernates by executing sudo /usr/sbin/pm-powersave false. The man pm-powersave page says I can create an empty file /etc/pm/power.d/wireless to prevent /usr/lib/pm-utils/power.d/wireless from running and doing its magic. I've done it, and it works for me.

I found this by doing an ls -lrt /var/log just after the event, and looking at the last 100 so lines of the recently modified logs. I use this technique to start answering many questions about what my system just did.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.