Broadcom 4313

[Mensik]

No problem.

[chili555]

No problem.

So how is it going? Do we need to tweak it a bit more or is it working well enough?

[Mensik]

Hi,

I tryed to walk away from the router in order to test the strenght of the signal. As I thought, just a few meters further from where I was sitting, I lost my connexion. I had to reboot to have access to the wifi again.
The signal stil looks weak.

NetworkManager Tool

State: connected (global)

- Device: wlan0  [VIDEOTRON3680] -----------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             connected
  Default:           yes
  HW Address:        C0:18:85:2C:62:6A

  Capabilities:
    Speed:           18 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    *VIDEOTRON3680:  Infra, 1C:7E:E5:F8:E7:6E, Freq 2417 MHz, Rate 54 Mb/s, Strength 32 WPA2

  IPv4 Settings:
    Address:         192.168.0.100
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        78:E3:B5:6A:60:ED

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         off

Strangely, if I test nm-tool in my other computer's terminal, here what I get :

NetworkManager Tool 

State: connected (global) 

- Device: eth0  ----------------------------------------------------------------- 
  Type:              Wired 
  Driver:            tg3 
  State:             unavailable 
  Default:           no 
  HW Address:        00:1B:24:BC:05:86 

  Capabilities: 
    Carrier Detect:  yes 

  Wired Properties 
    Carrier:         off 


- Device: wlan0  [VIDEOTRON3680]  ----------------------------------------------- 
  Type:              802.11 WiFi 
  Driver:            iwl3945 
  State:             connected 
  Default:           yes 
  HW Address:        00:1B:77:E1:85:5A 

  Capabilities: 
    Speed:           54 Mb/s 

  Wireless Properties 
    WEP Encryption:  yes 
    WPA Encryption:  yes 
    WPA2 Encryption: yes 

  Wireless Access Points (* = current AP) 
    Toucheatoncul:   Infra, 00:1E:E5:35:13:4F, Freq 2437 MHz, Rate 54  Mb/s, Strength 25 WPA WPA2 
    Chez Lise:       Infra, 00:1E:E5:EF:29:59, Freq 2457 MHz, Rate 54  Mb/s, Strength 20 WPA2 
    linksys:         Infra, 00:16:B6:ED:BE:76, Freq 2437 MHz, Rate 54  Mb/s, Strength 15 
    *VIDEOTRON3680:  Infra, 1C:7E:E5:F8:E7:6E, Freq 2417 MHz, Rate 54  Mb/s, Strength 73 WPA2 

  IPv4 Settings: 
    Address:         192.168.0.101 
    Prefix:          24 (255.255.255.0) 
    Gateway:         192.168.0.1 

    DNS:             192.168.0.1

[chili555]

At the suggestion of my pal Hadaka, let's try an updated driver:

sudo apt-get install linux-backports-modules-cw-3.6-precise-generic

After it finishes, reboot and let us see:

nm-tool

[Mensik]

Didn't seem to work.

I'm connected with my ethernet cable. The wifi doesn't seem to function anymore. Networks are still available, but won't connect.

The Broadcom driver isn't installed anymore.
www.antoinemalette.com/ubuntu/anglais/4.png

Here's my nm-tool result :

NetworkManager Tool

State: connected (global)

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             disconnected
  Default:           no
  HW Address:        C0:18:85:2C:62:6A

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 
    VIDEOTRON3680:   Infra, 1C:7E:E5:F8:E7:6E, Freq 2417 MHz, Rate 54 Mb/s, Strength 20 WPA2


- Device: eth0  [Connexion filaire 1] ------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        78:E3:B5:6A:60:ED

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.102
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1

[chili555]

The Broadcom STA driver is not installed because we decided it was not performing correctly for your device and removed it in post #10. Did you try a reboot? If the backports package isn't an improvement, by all means, remove it:

sudo apt-get remove linux-backports-modules-cw-3.6-precise-generic

And then reboot.

[Mensik]

Hi chili555,

Sorry for the delay, and thanks again for your help. I did the manipulation you suggested me, but it didn't seem to help.
On the french forums, a user told me :

1) To do :

sudo rmmod brcmsmac

2) To "blacklist" brcmsmac

3) To make sure it wasn't in /etc/modules, but to also make sure that b43 was on /etc/modules.

As soo as I typed the first command (rmmod brcmsmac), I lost the connection I had. I did the other manipulations, rebooted, and since then, I've no connections available.
I must admit, I begin to loose faith...

Here's my blacklist.conf file :

# This file lists those modules which we don't want to be loaded by
# alias expansion, usually so some other driver will be loaded for the
# device instead.

# evbug is a debug tool that should be loaded explicitly
blacklist evbug

# these drivers are very simple, the HID drivers are usually preferred
blacklist usbmouse
blacklist usbkbd

# replaced by e100
blacklist eepro100

# replaced by tulip
blacklist de4x5

# causes no end of confusion by creating unexpected network interfaces
blacklist eth1394

# snd_intel8x0m can interfere with snd_intel8x0, doesn't seem to support much
# hardware on its own (Ubuntu bug #2011, #6810)
blacklist snd_intel8x0m

# Conflicts with dvb driver (which is better for handling this device)
blacklist snd_aw2

# causes failure to suspend on HP compaq nc6000 (Ubuntu: #10306)
blacklist i2c_i801

# replaced by p54pci
blacklist prism54

# replaced by b43 and ssb.
blacklist ssb
blacklist bcma

# most apps now use garmin usb driver directly (Ubuntu: #114565)
blacklist garmin_gps

# replaced by asus-laptop (Ubuntu: #184721)
blacklist asus_acpi

# low-quality, just noise when being used for sound playback, causes
# hangs at desktop session start (Ubuntu: #246969)
blacklist snd_pcsp

# ugly and loud noise, getting on everyone's nerves; this should be done by a
# nice pulseaudio bing (Ubuntu: #77010)
blacklist pcspkr

# EDAC driver for amd76x clashes with the agp driver preventing the aperture
# from being initialised (Ubuntu: #297750). Blacklist so that the driver
# continues to build and is installable for the few cases where its
# really needed.
blacklist amd76x_edac
blacklist wl0
blacklist brcmsmac

/etc/modules :

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

lp
wl
b43

iwconfig:

lo        no wireless extensions.

eth0      no wireless extensions.

ifconfig :

eth0      Link encap:Ethernet  HWaddr 78:e3:b5:6a:60:ed  
          inet adr:192.168.0.102  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::7ae3:b5ff:fe6a:60ed/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:3711 erreurs:0 :0 overruns:0 frame:0
          TX packets:3205 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:3761508 (3.7 MB) Octets transmis:440120 (440.1 KB)
          Interruption:42 Adresse de base:0x2000 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:280 erreurs:0 :0 overruns:0 frame:0
          TX packets:280 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:23636 (23.6 KB) Octets transmis:23636 (23.6 KB)

nm-tool:

NetworkManager Tool

State: connected (global)

- Device: eth0  [Connexion filaire 1] ------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        78:E3:B5:6A:60:ED

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.102
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1

lspci :

00:00.0 Host bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 9647
00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series]
00:04.0 PCI bridge: Advanced Micro Devices [AMD] Family 12h Processor Root Port
00:11.0 SATA controller: Advanced Micro Devices [AMD] Hudson SATA Controller [AHCI mode]
00:12.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
00:12.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
00:13.0 USB controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11)
00:13.2 USB controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11)
00:14.0 SMBus: Advanced Micro Devices [AMD] Hudson SMBus Controller (rev 13)
00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices [AMD] Hudson LPC Bridge (rev 11)
00:14.4 PCI bridge: Advanced Micro Devices [AMD] Hudson PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices [AMD] Device 43a0
00:15.1 PCI bridge: Advanced Micro Devices [AMD] Device 43a1
00:15.2 PCI bridge: Advanced Micro Devices [AMD] Device 43a2
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
07:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5116 PCI Express Card Reader (rev 01)

Thank you so much for your time...

[chili555]

As soo as I typed the first command (rmmod brcmsmac), I lost the connection I had. I did the other manipulations, rebooted, and since then, I've no connections available.
I must admit, I begin to loose faith...

I suggest you tell your French forum friend just that. And tell him or her that your device isn't covered by b43 and its sister ssb. Then I suggest you undo everything he or she suggested and we'll continue.

[Mensik]

I suggest you tell your French forum friend just that. And tell him or her that your device isn't covered by b43 and its sister ssb. Then I suggest you undo everything he or she suggested and we'll continue.

Done. I've undone the previous manipulations but couldn't manage to undo the sudo rmmod brcmsmac. (You see how neophyte I am)
After a reboot, my network (VIDEOTRON3680) is detected, but I can't connect to it.

iwconfig

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          
eth0      no wireless extensions.

ifconfig

eth0      Link encap:Ethernet  HWaddr 78:e3:b5:6a:60:ed  
          inet adr:192.168.0.102  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::7ae3:b5ff:fe6a:60ed/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:2224 erreurs:0 :0 overruns:0 frame:0
          TX packets:2036 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:1922869 (1.9 MB) Octets transmis:253535 (253.5 KB)
          Interruption:42 Adresse de base:0x2000 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:374 erreurs:0 :0 overruns:0 frame:0
          TX packets:374 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:29860 (29.8 KB) Octets transmis:29860 (29.8 KB)

wlan0     Link encap:Ethernet  HWaddr c0:18:85:2c:62:6a  
          adr inet6: fe80::c218:85ff:fe2c:626a/64 Scope:Lien
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:16 erreurs:0 :0 overruns:0 frame:0
          TX packets:127 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:2049 (2.0 KB) Octets transmis:33505 (33.5 KB)

nm-tool

NetworkManager Tool

State: connected (global)

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            brcmsmac
  State:             disconnected
  Default:           no
  HW Address:        C0:18:85:2C:62:6A

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 
    VIDEOTRON3680:   Infra, 1C:7E:E5:F8:E7:6E, Freq 2417 MHz, Rate 54 Mb/s, Strength 27 WPA2


- Device: eth0  [Connexion filaire 1] ------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        78:E3:B5:6A:60:ED

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.102
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1

Do you have any ideas ?
I've seen a few manipulations you suggested here. Do you think it could work for my caste too ?

Thanks again chili555 !

[chili555]

I've seen a few manipulations you suggested here. Do you think it could work for my caste too ?

Not really, since we've already purged bcmwl-kernel-source and since brcmsmac is already loading as expected:

NetworkManager Tool

State: connected (global)

- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: brcmsmac
State: disconnected
Default: no
HW Address: C0:18:85:2C:62:6A

Is the behavior better or worse with the ethernet detached? Your router seems to be set to channel 2. Is the signal strength better at 1 or my favorite 11? If you change the channel, other computers attached to the wireless network will need to disconnect and reconnect.

EDIT: May I see:

cat /etc/modules