Ubuntu – Wireless doesn’t connect after suspend on an Asus K52F


I'm on an ASUS K52F running Ubuntu 11.10 with the AR9285 wireless card. Wifi works acceptably before suspending, after it doesn't show any networks. the only solution I've found is a full reboot.

Best Answer

  • You can reload the wireless driver after suspend to avoid a reboot. My driver is 'ath9k' which you can find by running 'nm-tool' and look for the line similar to

    Driver:   ath9k

    Then to reload the driver:

    sudo rmmod ath9k
    sudo modprobe ath9k

    To make this happen automatically when you come back from suspend we can add the following script at /etc/pm/sleep.d/00_wireless_sleep

    case "$1" in
        /sbin/rmmod ath9k
        /sbin/rmmod ath9k
        /sbin/modprobe ath9k
    exit 0

    Replace the "ath9k" module name with the module you discovered from the nm-tool output mentioned above. I had to name the script "00_wireless_sleep" so it gets run after all the other resume scripts (scripts get run in reverse order on resume). Don't forget to make file "00_wireless_sleep" executable:

    sudo chmod 755 /etc/pm/sleep.d/00_wireless_sleep