Using Lenovo G480 (Ubuntu Linux 12.04 LTS), I can't connect to my wifi.

[psychephia]

Hi,

I'm using Lenovo G480 and I just installed Ubuntu Linux 12.04 LTS yesterday (dual booting it with Windows 7). I cannot connect to my wifi. I'm a newbie to Linux and I have no idea how to fix this. Can someone help?

here are the codes below:

lspci:

00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4)
00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1058 (rev a1)
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
04:00.0 Ethernet controller: Atheros Communications Inc. AR8162 Fast Ethernet (rev 10)

sudo lshw -C network
*-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:eb500000-eb503fff
*-network description: Ethernet interface
product: AR8162 Fast Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 10
serial: 3c:97:0e:19:f2:bf
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 firmware=N/A latency=0 link=no multicast=yes port=twisted pair resources: irq:19 memory:eb400000-eb43ffff ioport:2000(size=128)
*-network description: Wireless interface
physical id: 3
logical name: wlan0
serial: 08:ed:b9:a5:9b:a1
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=brcmsmac driverversion=3.5.0-34-generic firmware=N/A ip=192.168.254.101 link=yes multicast=yes wireless=IEEE 802.11bgn

Module Size Used by
nls_utf8 12558 1
isofs 40307 1
snd_hda_codec_hdmi 32476 1
snd_hda_codec_realtek 79855 1
joydev 17694 0
rfcomm 47562 0
bnep 18240 2
parport_pc 32867 0
ppdev 17114 0
lp 17800 0
parport 46563 3 parport_pc,ppdev,lp
coretemp 13642 0
kvm 422160 0
ghash_clmulni_intel 13221 0
arc4 12530 2
aesni_intel 51134 2
cryptd 20531 2 ghash_clmulni_intel,aesni_intel
aes_x86_64 17256 1 aesni_intel
brcmsmac 541775 0
mac80211 555272 1 brcmsmac
brcmutil 14756 1 brcmsmac
cfg80211 208382 2 brcmsmac,mac80211
cordic 12575 1 brcmsmac
snd_hda_intel 34063 3
snd_hda_codec 135141 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel
snd_hwdep 17765 1 snd_hda_codec
snd_pcm 97523 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13325 0
snd_rawmidi 30750 1 snd_seq_midi
snd_seq_midi_event 14900 1 snd_seq_midi
snd_seq 61931 2 snd_seq_midi,snd_seq_midi_event
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
btusb 22432 0
bluetooth 211812 14 rfcomm,bnep,btusb
alx 73500 0
uvcvideo 78117 0
mdio 13808 1 alx
videobuf2_core 33025 1 uvcvideo
videodev 125126 2 uvcvideo,videobuf2_core
videobuf2_vmalloc 12861 1 uvcvideo
videobuf2_memops 13405 1 videobuf2_vmalloc
microcode 23030 0
snd 83674 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,s nd_seq,snd_timer,snd_seq_device
psmouse 102506 0
serio_raw 13216 0
lpc_ich 17145 0
bcma 35762 1 brcmsmac
mei 41410 0
ideapad_laptop 18235 0
soundcore 15092 1 snd
snd_page_alloc 18573 2 snd_hda_intel,snd_pcm
sparse_keymap 13891 1 ideapad_laptop
nouveau 924024 1
ttm 88495 1 nouveau
mxm_wmi 13022 1 nouveau
mac_hid 13254 0
wmi 19257 2 nouveau,mxm_wmi
i915 535221 3
drm_kms_helper 49259 2 nouveau,i915
drm 290059 7 nouveau,ttm,i915,drm_kms_helper
i2c_algo_bit 13565 2 nouveau,i915
video 19653 2 nouveau,i915
usb_storage 49288 0
ahci 25869 2
libahci 27338 1 ahci


Thanks. Your help would be greatly appreciated. God bless

[Hadaka]

Hi, give this a go..

sudo su
apt-get install brcmwl-kernel-source
echo "blacklist brcmsmac" >> /etc/modprobe.d/blacklist.conf
echo "blacklist bcma" >> /etc/modprobe.d/blacklist.conf
modprobe -r brcmsmac
modprobe wl
exit 0

[psychephia]

This is what it said after typing the commands above:


sudo su
apt-get install brcmwl-kernel-source
reading package list... done
Building dependency tree
Reading state information... done
E: Unable to locate package brcmwl-kernel-source
echo "blacklist brcmsmac" >> /etc/modprobe.d/blacklist.conf
echo "blacklist bcma" >> /etc/modprobe.d/blacklist.conf
modprobe -r brcmsmac
modprobe wl
FATAL: module wl not found
exit 0


Hi, what to do next?
After I've done this command, I couldn't find any wireless network option under the wireless menu. Pls help. Thank you.

[Hadaka]

Hi,did you do those commands from a wired connection?
if not..please connect the wire and do them again
thanks.

[chili555]

I think my colleague Hadaka might have made a typo. Please try:

sudo apt-get install bcmwl-kernel-source

In other words, without an R.

I actually think brcmsmac is correct, but let's just find out!

[sebaogal]

Hi, i'm in the same situation: same laptop, but with Linux Mint 15, in other words, Ubuntu Raring. I could not see the available networks. After doing the procedure that Hadaka told us i'm able to see available networks, but i can't connect to any. I click in one, put the key, wait wait wait and nothing, it retries. Any help please?

[chili555]

Hi, i'm in the same situation: same laptop, but with Linux Mint 15, in other words, Ubuntu Raring. I could not see the available networks. After doing the procedure that Hadaka told us i'm able to see available networks, but i can't connect to any. I click in one, put the key, wait wait wait and nothing, it retries. Any help please?

And the exact same hardware?

lspci -nn | grep 0280

[bozo_the_grey]

Hi,

I have the same problem since the last ubuntu update (admittedly I don't know exactly what was updated).

I am running 12.04 LTS on Lenovo Ideapad S12 (nvidia ion) in dual boot with windows7.

lspci -nn | grep 0280
07:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)


Same as the other users: Ubuntu sees many wireless connections, but not my own.
I have rencently set a fixed ip address to the laptop from the router. I might try to take that off.

I have blacklisted brcmsmac and bcma.
bcmwl-kernel-source was already the latest.

lspci:

00:00.0 Host bridge: NVIDIA Corporation MCP79 Host Bridge (rev b1)
00:00.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.0 ISA bridge: NVIDIA Corporation MCP79 LPC Bridge (rev b3)
00:03.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.2 SMBus: NVIDIA Corporation MCP79 SMBus (rev b1)
00:03.3 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.5 Co-processor: NVIDIA Corporation MCP79 Co-processor (rev b1)
00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1)
00:04.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev b1)
00:06.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1)
00:06.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev b1)
00:08.0 Audio device: NVIDIA Corporation MCP79 High Definition Audio (rev b1)
00:09.0 PCI bridge: NVIDIA Corporation MCP79 PCI Bridge (rev b1)
00:0b.0 SATA controller: NVIDIA Corporation MCP79 AHCI Controller (rev b1)
00:0c.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:0d.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:0e.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:10.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:15.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:16.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:17.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:18.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
05:00.0 VGA compatible controller: NVIDIA Corporation ION VGA [GeForce 9400M] (rev b1)
06:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
07:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)

sudo lshw -C network &
[1] 2355
*-network
description: Ethernet interface
product: NetLink BCM5906M Fast Ethernet PCI Express
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:06:00.0
logical name: eth0
version: 02
serial: 00:1f:16:2d:59:e0
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.123 duplex=full firmware=sb v3.04 ip=192.168.1.64 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:41 memory:c2000000-c200ffff
*-network
description: Wireless interface
product: BCM4312 802.11b/g LP-PHY
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:07:00.0
logical name: eth1
version: 01
serial: 00:26:82:31:b9:20
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.20.155.1 (r326264) latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:19 memory:c2200000-c2203fff

[bozo_the_grey]

## SOLVED ##
- moved router channel from 13 to 3
- disconnect from wired network (this probably triggered a refresh of the list of wireless connections available)
- my connection was visible and I managed to connect to it
- definitely a bug that was already spotted http://askubuntu.com/questions/13849...-broadcom-card

[sebaogal]

And the exact same hardware?

lspci -nn | grep 0280

Exactly the same:

saogalde@lenovolinux$ lspci -nn | grep 0280
02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)

I would be so happy if i could fix this