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.

  • 1
    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
  • Well done, that's the way to self-document, woo! Oct 13 '11 at 20:21

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.

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