I am unable to see any wireless networks detected. I installed Ubuntu 12.04 alongside Windows 8 on a Lenovo G780 laptop two days ago. I can use the internet through an ethernet cable connected to my Cisco DPC3825 wireless router, or through Windows 8 wirelessly, but Ubuntu is not detecting any wireless networks at all. Updating the drivers is also not working. When I try to activate the Broadcom STA wireless driver, I get the following output:

Sorry, installation of this driver failed.

Please have a look at the log file for details: /var/log/jockey.log

Here are some of the other outputs:

iwconfig shows the following:

eth0 no wireless extensions.
lo no wireless extensions.
lxcbr0 no wireless extensions.

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rfkill list shows the following:

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

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lspci shows the following:

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 635M] (rev a1)
02:00.0 Ethernet controller: Qualcomm Atheros AR8162 Fast Ethernet (rev 10)
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)

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lshw -C network shows the following:

*-network description: Ethernet interface product: AR8162 Fast Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 10 serial: b8:88:e3:98:9d:fa size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=alx driverversion=1.2.3 duplex=full firmware=N/A ip=192.168.0.23 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:16 memory:d3900000-d393ffff ioport:2000(size=128) *-network UNCLAIMED description: Network controller product: BCM4313 802.11bgn Wireless Network Adapter 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: latency=0 resources: memory:d3800000-d3803fff

If any other commands/info will be helpful, please let me know. Thanks in advance.

4

1 Answer

Please try an earlier bcmwl-kernel-source as mentioned here: With a temporary wired ethernet connection, please open a terminal and do:

wget
sudo dpkg -i bcmwl*.deb

Reboot and give us your report.

1

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