Wifi deaktiveret i ubuntu 11.04

Hey

Efter jeg lavede en frisk installation af ubuntu 11.04 på min lenovo ideapad s12 har jeg ikke kunnet forbinde til trådløst internet. Når jeg kigger i networkmanageren skriver den "trådløs er deaktiveret", og trykker jeg aktiver trådløs, sker der ikke noget..

Jeg har fjernet STA-driveren, og installeret b43-fwcutter samt firmware-b43-installer, uden det har ændret på sagen.

dbr@littlepin:~$ lspci | grep Network
07:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)

Jeg har tjekket rfkill:
dbr@littlepin:~$ sudo rfkill list
[sudo] password for dbr:
0: ideapad_wlan: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
4: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
dbr@littlepin:~$ sudo rfkill unblock wifi
dbr@littlepin:~$ sudo rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
4: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Dette har så givet mulighed for at jeg kan søge:
dbr@littlepin:~$ sudo ifconfig wlan0 up
dbr@littlepin:~$ sudo iwlist wlan0 scan
wlan0 Scan completed :
Cell 01 - Address: C0:C1:C0:3A:D1:56
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=70/70 Signal level=-21 dBm
Encryption key:on
ESSID:"DRnet"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000234db914ea3
Extra: Last beacon: 704ms ago
IE: Unknown: 000544526E6574
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606081500000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD810050F204104A00011010440001021041000100103B0001031047001008595ABAD35AF4C10545443A1349C5361021000C4C696E6B73797320496E632E1023000D4C696E6B7379732045323030301024000776312E302E30331042000234321054000800060050F20400011011000D4C696E6B737973204532303030100800020084
IE: Unknown: DD090010180201F0040000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C33FC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3406081500000000000000000000000000000000000000
(samt nogle andre netværk)

Jeg kan ikke umiddelbart se om der er andre drivere der konflikter, men der er i hvert fald en blacklist på bcm43xx:
dbr@littlepin:~$ cat /etc/modprobe.d/* | egrep '8180|acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl'
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist wl
blacklist uart6850
blacklist twl4030_wdt

Men stadig siger networkmanager at trådløs er deaktiveret..

Nogle der har et bud på hvad problemet kunne være?