Is anyone able to try the steps in comment #6 to see if more information can be collected to help in debugging the issue? Right now there's very little information to go on, and since many machines use ath9k without this issue it's difficult to know what's special about the configurations affected by this bug.
Something else to try is to use the iw command-line tool (sudo apt-get install iw) from virtual terminal 1 to see if you can trigger the lockup and whether anything is printed to the console when it hangs. An example iw session would look like: Get a list of wireless devices $ iw list Scan for APs on device wlan0 $ iw dev wlan0 scan Connect to open AP "foo" on device wlan0 $ iw wlan0 connect foo More information about using iw can be found at http://linuxwireless.org/en/users/Documentation/iw -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/787210 Title: ath9k drivers freeze the system when changing state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/787210/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
