I am getting what I think is the same problem (but I'm on Karmic).
The OS sees the interface:
$ dmesg | grep 5300
[ 8.403967] iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5300AGN
REV=0x24
$ ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:21:6a:xx:xx:xx
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
However, trying to up it produces:
$ sudo ifconfig wlan0 up
[sudo] password for user:
SIOCSIFFLAGS: Unknown error 132
It appears to be "hard blocked" - obviously I have checked in the BIOS
that it's not disabled, and I've pressed the "enable" button.
$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
The laptop is an HP EliteBook 8530w.
03:00.0 Network controller: Intel Corporation Wireless WiFi Link 5300
03:00.0 0280: 8086:4236
$ grep wlan0 syslog
Apr 12 14:50:38 laptop NetworkManager: SCPlugin-Ifupdown: devices added
(path: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlan0, iface:
wlan0)
Apr 12 14:50:38 laptop NetworkManager: SCPlugin-Ifupdown: device added
(path: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlan0, iface:
wlan0): no ifupdown configuration found.
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): driver supports SSID
scans (scan_capa 0x01).
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): new 802.11 WiFi device
(driver: 'iwlagn')
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): exported as
/org/freedesktop/NetworkManager/Devices/1
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): now managed
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): device state change: 1
-> 2 (reason 2)
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): bringing up device.
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): deactivating device
(reason: 2).
Apr 12 14:50:39 laptop NetworkManager: <info> (wlan0): supplicant manager
state: down -> idle
I read on a post somewhere that this is a bug in HAL, not rfkill.
--
Wireless not working (Intel 5300 AGN)
https://bugs.launchpad.net/bugs/553572
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