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Asked: 2013-11-12 05:49:29 +0800 CST

No wlan after standby

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since I use Ubuntu 13.10, I'm experiencing a bug:

  1. I activate standby
  2. I press any key to continue working on my laptop
  3. The computer is on again, but the wlan doesn't work.

After Standby… Hitting "Enable network"

→ The wlan network then is disabled by default, but I can't enable it, it doesn't shows any network available.

wireless

1 Answers

  1. Best Answer

    It could be a problem of the driver or of network manager. In the latter case, try to see if 

    % sudo restart network-manager

    works. If it works, you can add the network-manager restart at resume: there are a lot of hints and suggestions here: how to execute a command after resume from suspend?

    Otherwise, you should try to load/unload the wireless driver --- you can find it with

    % nm-tool | grep Driver
Driver: atl1c
Driver: ath9k

    (you will have the list of drivers, one of them is you wireless one), and try to unload and reload it: 

    sudo rmmod ath9k
sudo modprobe ath9k

    If this second option does work, you can add the modules to the list of modules to be loaded/unloaded at suspend/resume, 

    % sudo sudo gedit /etc/pm/config.d/config

    And adding 

    SUSPEND_MODULES="ath9k"

    there. (Disclaimer: it worked for me in 12.04. Never tried with newer Ubuntu).

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