This is a new installation of Ubuntu 11.10 on an acer aspire 3630. The cd drive is broken so I had to install Ubuntu over network (and I suspect it did not install all the packages in the normal installation).
The problem is that ubuntu does not list the available wireless connections and I can't manually connect to my home wifi. I have tried a lot of things and this is all the info I have:
The wireless card is an AR2413.
The physical button to switch on/off the wireless does not work.
I am using the ath5k driver.
During boot I get the following message:
ADDRCONF(NETDEV_UP): wlan0: link is not ready
lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off
*-network:1 description: Wireless interface product: AR2413 802.11bg NIC vendor: Atheros Communications Inc. physical id: b bus info: pci@0000:00:0b.0 logical name: wlan0 version: 01 serial: 00:16:ce:17:eb:4c width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath5k driverversion=3.0.0-12-generic firmware=N/A latency=168 link=no maxlatency=28 mingnt=10 multicast=yes wireless=IEEE 802.11bg resources: irq:17 memory:e2010000-e201ffff
rfkill list all
rfkill list all 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no
I discovered that the problem is that, when I boot Ubuntu the wireless is disabled. If I manually enable it it works perfectly... Until the next time I restart the computer. These are the commands I use to enable the wireless card:
sudo rmmod -f ath5k sudo rfkill unblock all sudo modprobe ath5k