I have been working with this problem as well, although I ended up with a slightly different workaround. I blacklisted ath9k, ath9k_common, and ath9k_hw, and disabled wireless networking.
I tried Ubuntu 12.04 on this computer, and it was working nicely for a while, until I did a dist-upgrade a few days ago and rebooted. It would freeze a few seconds after it got to the UI prompt. It had already some wifi networks stored, that it connected to automatically. I tried OpenSuse 12 - same thing. It froze during the installation process. Fedora 17 would boot to the UI in a live CD, but as soon as I selected any one of the wireless networks to connect to, it would freeze. So this is not an Ubuntu problem, per se, but it affects Ubuntu. I blacklisted ath9k, ath9k_common, and ath9k_hw and got Fedora 17 working stably. I have the 3.3.4-5.fc17.x86_64 kernel -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/989566 Title: Acer Aspire 7250 laptop with Atheros AR9485 freezes when Enabling Wireless in 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/989566/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
