My question is similar to this, but now it is about 11.10.
My wireless card:
~$ lspci -vvnn |grep 14e4
03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:0510]
I followed the instructions on the Ubuntu Wiki and reinstalled my STA driver but still no luck.
I also removed and reinstalled the driver and nothing changed.
I am tired rebooting :).
More info:
~$ sudo lshw -class network
*-network
description: Ethernet interface
product: AR8131 Gigabit Ethernet
vendor: Atheros Communications
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth1
version: c0
serial: 5c:ff:35:0f:bd:8b
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.0.106 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:43 memory:d0200000-d023ffff ioport:a000(size=128)
*-network
description: Network controller
product: BCM4313 802.11b/g/n Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=bcma-pci-bridge latency=0
resources: irq:17 memory:d0300000-d0303fff
~$ rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Best Answer
Unfortunately the driver worked ONLY after fresh install and blacklisting acer_wmi. I just added "blacklist acer_wmi" to the end of the file. /etc/modprobe.d/blacklist.conf
Seems upgrading does not perform enough cleanly.
Well if you find your self doing like me, you can keep your current settings and user files by installing the system in "/"and formatting it but keeping your "/home" partition intact. You just need to enter the same username when you create your first(default) user. If you have more users name them as they were and create them (including the first) in the same order they were created in previously.
Hope this helps someone.