Buenas,

Tengo mi placa wifi que funcionaba perfectamente y ahora no quiere saber mas nada:

$ sudo ifconfig wlan0 up
SIOCSIFFLAGS: Operation not possible due to RF-kill

Resulta que el problema es extrano:

- Reinicio mi maquina.
- Tipeo

$ rfkill list
0: hp-wifi: Wireless LAN
	Soft blocked: yes
	Hard blocked: yes
1: phy0: Wireless LAN
	Soft blocked: yes
	Hard blocked: no
 

- Apreto el boton de activacion wifi en la laptop

$ rfkill list
0: hp-wifi: Wireless LAN
	Soft blocked: yes
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: yes
	Hard blocked: no
 

- Luego

$ rfkill unblock all
0: hp-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
 

- Hasta ahora todo bien, pero cuando quiero levantar wlan0

$ sudo ifconfig wlan0 up
SIOCSIFFLAGS: Operation not possible due to RF-kill
 

- Tiro de vuelta rfkill y

$ rfkill list
0: hp-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: yes
 

No entiendo nada...

Apretando el boton de la laptop, solo bloquea hp-wifi pero phy0 sige hard blocked.

Les paso algo de info:

$ lspci
02:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01)
 
$ uname -a
Linux ivanchuk 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:05:41 UTC 2011 i686 i686 i386 GNU/Linux
 
$ dmesg
[  151.394810] ADDRCONF(NETDEV_UP): wlan0: link is not ready
 
$ lshw
           *-network DISABLED
                description: Wireless interface
                product: AR5001 Wireless Network Adapter
                vendor: Atheros Communications Inc.
                physical id: 0
                bus info: pci@0000:02:00.0
                logical name: wlan0
                version: 01
                serial: 00:23:4d:64:50:8e
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=ath5k driverversion=2.6.38-10-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bg
                resources: irq:17 memory:92600000-9260ffff
 

Espero que puedan ayudarme, gracias.

Saludos.