eth%d: 5.100.82.38 driver failed with code 21 -> Wireless Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01) not working on Acer Aspire 5715Z in Ubuntu 11.04

Asked by Farhad on 2011-05-30

Complete Ubuntu noob here, my laptop has a built-in wireless card but for some reason Ubuntu won't detect it. When I first installed Ubuntu 11.04 from the Live CD it told me it detected a Broadcom Wireless Adapter and asked me if I wanted to install third-party drivers with Ubuntu. I ticked the box and completed the Ubuntu installation but now when I click on the network icon it doesn't show any wireless options at all. The only way I can get online is if I use an ethernet cable or with a USB wireless dongle. Can you guys help me so I can use my laptop's built-in wireless to connect online?

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu gnome-nettool Edit question
Assignee:
No assignee Edit question
Solved by:
Mark Rijckenberg
Solved:
2011-06-07
Last query:
2011-06-07
Last reply:
2011-06-06
Tony Callaghan (tonycal147) said : #1

Hi Farhad, was this a fresh install-have you ran an update yet? Also there is a new kernel you should maybe update to-from 2.6.38 to 2.6.39 a quick search should enable you to do them if your a noob ;-) hope this helps ;-)

Farhad (fsanim) said : #2

hi Tony, yes this was a fresh install. I did an update with update manager and installed the latest kernel but now my USB dongle won't detect any wireless networks anymore :( when I check the additional drivers settings page it says broadcom STA proprietary wireless driver is activated but currently not in use

Hi,

Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).

In order to gather essential troubleshooting information about your wireless card, please follow this procedure:

Step 1:

If you are using the Gnome interface, open the Terminal console via "Applications->Accessories->Terminal"

If you are using the Unity interface, the easiest way to open the Terminal is to use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.

So the methods in Unity are:
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal

Step 2: Please copy-paste the following command from the https://answers.launchpad.net/ubuntu website in Firefox into the Linux Terminal. Do NOT copy-paste from the Email message into the Terminal, as that will only copy PART of the command. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE command below from Firefox into a Terminal, press <enter>, then enter password when sudo asks for password, then press enter again.

Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!

sudo apt-get update; sudo apt-get install hwinfo grep; sudo lshw -C network; rfkill list; sudo iwlist scanning; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; sudo lshw -short; uname -a; dmesg | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rtl|rt2|rt3|rt6|rt7|usb|witch|wl';sudo dmidecode|egrep 'Manufact|Product'; iwconfig; cat /etc/modprobe.d/* | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl'; sudo hwinfo --netcard ; cat /var/lib/NetworkManager/NetworkManager.state; sudo lsmod

Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.

Regards,

Mark

Farhad (fsanim) said : #4

Hi Mark, sorry for taking so long to reply, I had to get a new LAN cable. Here's the terminal output:

Ign http://security.ubuntu.com natty-security InRelease
Ign http://gb.archive.ubuntu.com natty InRelease
Ign http://gb.archive.ubuntu.com natty-updates InRelease
Ign http://ppa.launchpad.net natty InRelease
Ign http://extras.ubuntu.com natty InRelease
Ign http://dl.google.com stable InRelease
Hit http://security.ubuntu.com natty-security Release.gpg
Hit http://ppa.launchpad.net natty Release.gpg
Hit http://gb.archive.ubuntu.com natty Release.gpg
Hit http://extras.ubuntu.com natty Release.gpg
Hit http://security.ubuntu.com natty-security Release
Hit http://gb.archive.ubuntu.com natty-updates Release.gpg
Hit http://extras.ubuntu.com natty Release
Get:1 http://dl.google.com stable Release.gpg [198 B]
Hit http://ppa.launchpad.net natty Release
Hit http://gb.archive.ubuntu.com natty Release
Get:2 http://dl.google.com stable Release [1,351 B]
Hit http://gb.archive.ubuntu.com natty-updates Release
Hit http://security.ubuntu.com natty-security/main Sources
Hit http://security.ubuntu.com natty-security/restricted Sources
Hit http://security.ubuntu.com natty-security/universe Sources
Hit http://security.ubuntu.com natty-security/multiverse Sources
Hit http://security.ubuntu.com natty-security/main i386 Packages
Hit http://security.ubuntu.com natty-security/restricted i386 Packages
Hit http://extras.ubuntu.com natty/main Sources
Hit http://ppa.launchpad.net natty/main Sources
Hit http://security.ubuntu.com natty-security/universe i386 Packages
Hit http://security.ubuntu.com natty-security/multiverse i386 Packages
Ign http://security.ubuntu.com natty-security/main TranslationIndex
Ign http://security.ubuntu.com natty-security/multiverse TranslationIndex
Ign http://security.ubuntu.com natty-security/restricted TranslationIndex
Hit http://ppa.launchpad.net natty/main i386 Packages
Hit http://extras.ubuntu.com natty/main i386 Packages
Ign http://ppa.launchpad.net natty/main TranslationIndex
Ign http://extras.ubuntu.com natty/main TranslationIndex
Ign http://security.ubuntu.com natty-security/universe TranslationIndex
Hit http://gb.archive.ubuntu.com natty/main Sources
Get:3 http://dl.google.com stable/main i386 Packages [1,215 B]
Hit http://gb.archive.ubuntu.com natty/restricted Sources
Hit http://gb.archive.ubuntu.com natty/universe Sources
Hit http://gb.archive.ubuntu.com natty/multiverse Sources
Hit http://gb.archive.ubuntu.com natty/main i386 Packages
Hit http://gb.archive.ubuntu.com natty/restricted i386 Packages
Hit http://gb.archive.ubuntu.com natty/universe i386 Packages
Hit http://gb.archive.ubuntu.com natty/multiverse i386 Packages
Ign http://gb.archive.ubuntu.com natty/main TranslationIndex
Ign http://gb.archive.ubuntu.com natty/multiverse TranslationIndex
Ign http://gb.archive.ubuntu.com natty/restricted TranslationIndex
Ign http://gb.archive.ubuntu.com natty/universe TranslationIndex
Hit http://gb.archive.ubuntu.com natty-updates/main Sources
Hit http://gb.archive.ubuntu.com natty-updates/restricted Sources
Hit http://gb.archive.ubuntu.com natty-updates/universe Sources
Hit http://gb.archive.ubuntu.com natty-updates/multiverse Sources
Ign http://dl.google.com stable/main TranslationIndex
Hit http://gb.archive.ubuntu.com natty-updates/main i386 Packages
Hit http://gb.archive.ubuntu.com natty-updates/restricted i386 Packages
Hit http://gb.archive.ubuntu.com natty-updates/universe i386 Packages
Hit http://gb.archive.ubuntu.com natty-updates/multiverse i386 Packages
Ign http://gb.archive.ubuntu.com natty-updates/main TranslationIndex
Ign http://gb.archive.ubuntu.com natty-updates/multiverse TranslationIndex
Ign http://gb.archive.ubuntu.com natty-updates/restricted TranslationIndex
Ign http://gb.archive.ubuntu.com natty-updates/universe TranslationIndex
Hit http://gb.archive.ubuntu.com natty/main Translation-en_GB
Hit http://gb.archive.ubuntu.com natty/multiverse Translation-en_GB
Hit http://gb.archive.ubuntu.com natty/restricted Translation-en_GB
Hit http://gb.archive.ubuntu.com natty/universe Translation-en_GB
Ign http://ppa.launchpad.net natty/main Translation-en_GB
Ign http://security.ubuntu.com natty-security/main Translation-en_GB
Ign http://security.ubuntu.com natty-security/main Translation-en
Ign http://extras.ubuntu.com natty/main Translation-en_GB
Ign http://ppa.launchpad.net natty/main Translation-en
Ign http://security.ubuntu.com natty-security/multiverse Translation-en_GB
Ign http://security.ubuntu.com natty-security/multiverse Translation-en
Ign http://security.ubuntu.com natty-security/restricted Translation-en_GB
Ign http://security.ubuntu.com natty-security/restricted Translation-en
Ign http://security.ubuntu.com natty-security/universe Translation-en_GB
Ign http://extras.ubuntu.com natty/main Translation-en
Ign http://security.ubuntu.com natty-security/universe Translation-en
Ign http://gb.archive.ubuntu.com natty/main Translation-en
Ign http://gb.archive.ubuntu.com natty/multiverse Translation-en
Ign http://gb.archive.ubuntu.com natty/restricted Translation-en
Ign http://gb.archive.ubuntu.com natty/universe Translation-en
Ign http://gb.archive.ubuntu.com natty-updates/main Translation-en_GB
Ign http://gb.archive.ubuntu.com natty-updates/main Translation-en
Ign http://gb.archive.ubuntu.com natty-updates/multiverse Translation-en_GB
Ign http://gb.archive.ubuntu.com natty-updates/multiverse Translation-en
Ign http://gb.archive.ubuntu.com natty-updates/restricted Translation-en_GB
Ign http://gb.archive.ubuntu.com natty-updates/restricted Translation-en
Ign http://gb.archive.ubuntu.com natty-updates/universe Translation-en_GB
Ign http://gb.archive.ubuntu.com natty-updates/universe Translation-en
Ign http://dl.google.com stable/main Translation-en_GB
Ign http://dl.google.com stable/main Translation-en
Fetched 2,764 B in 1s (1,577 B/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
grep is already the newest version.
The following packages were automatically installed and are no longer required:
  ttf-dejavu-extra java-common libaccess-bridge-java-jni libaccess-bridge-java
  icedtea-6-jre-cacao libgif4 openjdk-6-jre-headless tzdata-java openjdk-6-jre
  icedtea-netx icedtea-6-jre-jamvm openjdk-6-jre-lib ca-certificates-java
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libhal1 libhd16
The following NEW packages will be installed
  hwinfo libhal1 libhd16
0 upgraded, 3 newly installed, 0 to remove and 19 not upgraded.
Need to get 818 kB of archives.
After this operation, 2,269 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://gb.archive.ubuntu.com/ubuntu/ natty/universe libhal1 i386 0.5.14-5+svn1 [74.4 kB]
Get:2 http://gb.archive.ubuntu.com/ubuntu/ natty/universe libhd16 i386 16.0-2 [698 kB]
Get:3 http://gb.archive.ubuntu.com/ubuntu/ natty/universe hwinfo i386 16.0-2 [46.1 kB]
Fetched 818 kB in 1s (492 kB/s)
Selecting previously deselected package libhal1.
(Reading database ... 159809 files and directories currently installed.)
Unpacking libhal1 (from .../libhal1_0.5.14-5+svn1_i386.deb) ...
Selecting previously deselected package libhd16.
Unpacking libhd16 (from .../libhd16_16.0-2_i386.deb) ...
Selecting previously deselected package hwinfo.
Unpacking hwinfo (from .../hwinfo_16.0-2_i386.deb) ...
Processing triggers for man-db ...
Setting up libhal1 (0.5.14-5+svn1) ...
Setting up libhd16 (16.0-2) ...
Setting up hwinfo (16.0-2) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
  *-network
       description: Ethernet interface
       product: NetLink BCM5906M Fast Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 02
       serial: 00:1b:38:25:f3:7b
       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=3.117 duplex=full firmware=sb v3.04 ip=192.168.0.9 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:47 memory:95200000-9520ffff
  *-network UNCLAIMED
       description: Network controller
       product: BCM4311 802.11b/g WLAN
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:06:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:94100000-94103fff
0: acer-wireless: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: acer-threeg: Wireless WAN
 Soft blocked: no
 Hard blocked: no
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

auto lo
iface lo inet loopback

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.04
DISTRIB_CODENAME=natty
DISTRIB_DESCRIPTION="Ubuntu 11.04"
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03)
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 03)
00:02.1 Display controller [0380]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (secondary) [8086:2a03] (rev 03)
00:1a.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 [8086:2834] (rev 03)
00:1a.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 [8086:2835] (rev 03)
00:1a.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 [8086:283a] (rev 03)
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 [8086:283f] (rev 03)
00:1c.1 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 [8086:2841] (rev 03)
00:1c.2 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 [8086:2843] (rev 03)
00:1c.3 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 [8086:2845] (rev 03)
00:1d.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 [8086:2830] (rev 03)
00:1d.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 [8086:2831] (rev 03)
00:1d.2 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 [8086:2832] (rev 03)
00:1d.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 [8086:2836] (rev 03)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev f3)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller [8086:2815] (rev 03)
00:1f.1 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller [8086:2850] (rev 03)
00:1f.2 SATA controller [0106]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller [8086:2829] (rev 03)
00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller [8086:283e] (rev 03)
05:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
06:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 5986:0102 Acer, Inc Crystal Eye Webcam
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
H/W path Device Class Description
==========================================================
                                   system Computer
/0 bus Acadia
/0/0 memory 1MiB BIOS
/0/18 memory 2GiB System Memory
/0/18/0 memory 1GiB DIMM DDR2 Synchronous 533 MH
/0/18/1 memory 1GiB DIMM DDR2 Synchronous 533 MH
/0/20 processor Intel(R) Pentium(R) Dual CPU T2
/0/20/21 memory 1MiB L2 cache
/0/20/23 memory 32KiB L1 cache
/0/20/0.1 processor Logical CPU
/0/20/0.2 processor Logical CPU
/0/22 memory 32KiB L1 cache
/0/100 bridge Mobile PM965/GM965/GL960 Memory C
/0/100/2 display Mobile GM965/GL960 Integrated Gra
/0/100/2.1 display Mobile GM965/GL960 Integrated Gra
/0/100/1a bus 82801H (ICH8 Family) USB UHCI Con
/0/100/1a.1 bus 82801H (ICH8 Family) USB UHCI Con
/0/100/1a.7 bus 82801H (ICH8 Family) USB2 EHCI Co
/0/100/1b multimedia 82801H (ICH8 Family) HD Audio Con
/0/100/1c bridge 82801H (ICH8 Family) PCI Express
/0/100/1c.1 bridge 82801H (ICH8 Family) PCI Express
/0/100/1c.2 bridge 82801H (ICH8 Family) PCI Express
/0/100/1c.2/0 eth0 network NetLink BCM5906M Fast Ethernet PC
/0/100/1c.3 bridge 82801H (ICH8 Family) PCI Express
/0/100/1c.3/0 network BCM4311 802.11b/g WLAN
/0/100/1d bus 82801H (ICH8 Family) USB UHCI Con
/0/100/1d.1 bus 82801H (ICH8 Family) USB UHCI Con
/0/100/1d.2 bus 82801H (ICH8 Family) USB UHCI Con
/0/100/1d.7 bus 82801H (ICH8 Family) USB2 EHCI Co
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1f bridge 82801HEM (ICH8M) LPC Interface Co
/0/100/1f.1 scsi0 storage 82801HBM/HEM (ICH8M/ICH8M-E) IDE
/0/100/1f.1/0.0.0 /dev/cdrom disk DVD RW AD-7560A
/0/100/1f.2 scsi2 storage 82801HBM/HEM (ICH8M/ICH8M-E) SATA
/0/100/1f.2/0.0.0 /dev/sda disk 120GB WDC WD1200BEVS-2
/0/100/1f.2/0.0.0/1 /dev/sda1 volume 10000MiB EXT4 volume
/0/100/1f.2/0.0.0/2 /dev/sda2 volume 2037MiB Extended partition
/0/100/1f.2/0.0.0/2/5 /dev/sda5 volume 2037MiB Linux swap / Solaris part
/0/100/1f.2/0.0.0/3 /dev/sda3 volume 100GiB EXT4 volume
/0/100/1f.3 bus 82801H (ICH8 Family) SMBus Contro
/1 power Li-ion(6cell)
Linux sanim-Aspire-5715Z 2.6.39-0-generic #5~20110427-Ubuntu SMP Wed Apr 27 17:41:08 UTC 2011 i686 i686 i386 GNU/Linux
[ 0.000000] found SMP MP-table at [c00fe1b0] fe1b0
[ 0.183486] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.382789] ACPI: No dock devices found.
[ 0.382792] HEST: Table not found.
[ 0.404496] usbcore: registered new interface driver usbfs
[ 0.404518] usbcore: registered new interface driver hub
[ 0.404563] usbcore: registered new device driver usb
[ 0.412128] Switching to clocksource hpet
[ 0.415783] Switched to NOHz mode on CPU #0
[ 0.415906] Switched to NOHz mode on CPU #1
[ 0.444397] pnp: PnP ACPI: found 9 devices
[ 0.526694] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:03/PNP0C0D:00/input/input1
[ 0.526727] ACPI: Lid Switch [LID0]
[ 0.584950] ERST: Table is not found!
[ 0.939918] isapnp: No Plug & Play device found
[ 0.968212] hub 1-0:1.0: USB hub found
[ 0.988196] hub 2-0:1.0: USB hub found
[ 1.000274] hub 3-0:1.0: USB hub found
[ 1.000735] hub 4-0:1.0: USB hub found
[ 1.012253] hub 5-0:1.0: USB hub found
[ 1.012708] hub 6-0:1.0: USB hub found
[ 1.020255] hub 7-0:1.0: USB hub found
[ 1.073178] device-mapper: multipath: version 1.3.0 loaded
[ 1.073182] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 1.076619] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.300114] usb 2-4: new high speed USB device number 2 using ehci_hcd
[ 1.811496] tg3 0000:05:00.0: eth0: Tigon3 [partno(BCM95906) rev c002] (PCI Express) MAC address 00:1b:38:25:f3:7b
[ 1.811503] tg3 0000:05:00.0: eth0: attached PHY is 5906 (10/100Base-TX Ethernet) (WireSpeed[0])
[ 1.811509] tg3 0000:05:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
[ 1.811513] tg3 0000:05:00.0: eth0: dma_rwctrl[76180000] dma_mask[64-bit]
[ 13.072058] lp: driver loaded but no devices found
[ 13.952542] uvcvideo: Found UVC 1.00 device Acer Crystal Eye webcam (5986:0102)
[ 14.113819] input: Acer Crystal Eye webcam as /devices/pci0000:00/0000:00:1d.7/usb2/2-4/2-4:1.0/input/input5
[ 14.114105] usbcore: registered new interface driver uvcvideo
[ 14.251145] wl: module license 'MIXED/Proprietary' taints kernel.
[ 14.280701] wl 0000:06:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 14.280714] wl 0000:06:00.0: setting latency timer to 64
[ 14.283385] eth%d: 5.100.82.38 driver failed with code 21
[ 14.873712] Console: switching to colour frame buffer device 160x50
[ 15.620494] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 17.345409] tg3 0000:05:00.0: eth0: Link is up at 100 Mbps, full duplex
[ 17.345414] tg3 0000:05:00.0: eth0: Flow control is on for TX and on for RX
[ 17.345685] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 28.144031] eth0: no IPv6 routers present
 Manufacturer: Acer
 Product Name: Aspire 5715Z
 Manufacturer: Acer
 Product Name: Acadia
 Manufacturer: Acer
 Manufacturer: Sony
 SBDS Manufacture Date: 1980-00-00
 Manufacturer: 0xAD00000000000000
 Manufacturer: 0xAD00000000000000
 Manufacturer: Intel(R) Corporation
lo no wireless extensions.

eth0 no wireless extensions.

# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
# Warning: This file is autogenerated by bcmwl. All changes to this file will be lost.
blacklist b43
blacklist b43legacy
blacklist bcm43xx
blacklist brcm80211
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt
> hal.1: read hal dataprocess 1950: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file dbus-errors.c line 280.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
28: PCI 500.0: 0200 Ethernet controller
  [Created at pci.318]
  Unique ID: rBUF.McZ9RFmNQXE
  Parent ID: hoOk.MiPzYz3WDB1
  SysFS ID: /devices/pci0000:00/0000:00:1c.2/0000:05:00.0
  SysFS BusID: 0000:05:00.0
  Hardware Class: network
  Model: "Broadcom NetLink BCM5906M Fast Ethernet PCI Express"
  Vendor: pci 0x14e4 "Broadcom"
  Device: pci 0x1713 "NetLink BCM5906M Fast Ethernet PCI Express"
  SubVendor: pci 0x1025 "Acer Incorporated [ALI]"
  SubDevice: pci 0x0136
  Revision: 0x02
  Driver: "tg3"
  Driver Modules: "tg3"
  Device File: eth0
  Memory Range: 0x95200000-0x9520ffff (rw,non-prefetchable)
  IRQ: 47 (3526 events)
  HW Address: 00:1b:38:25:f3:7b
  Link detected: yes
  Module Alias: "pci:v000014E4d00001713sv00001025sd00000136bc02sc00i00"
  Driver Info #0:
    Driver Status: tg3 is active
    Driver Activation Cmd: "modprobe tg3"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #17 (PCI bridge)

29: PCI 600.0: 0280 Network controller
  [Created at pci.318]
  Unique ID: vTuk.D1FqthfVec2
  Parent ID: Z7uZ.OXITW6JwGy1
  SysFS ID: /devices/pci0000:00/0000:00:1c.3/0000:06:00.0
  SysFS BusID: 0000:06:00.0
  Hardware Class: network
  Model: "Broadcom BCM4311 802.11b/g WLAN"
  Vendor: pci 0x14e4 "Broadcom"
  Device: pci 0x4311 "BCM4311 802.11b/g WLAN"
  SubVendor: pci 0x1468 "AMBIT Microsystem Corp."
  SubDevice: pci 0x0422
  Revision: 0x01
  Memory Range: 0x94100000-0x94103fff (rw,non-prefetchable)
  IRQ: 19 (no events)
  Module Alias: "pci:v000014E4d00004311sv00001468sd00000422bc02sc80i00"
  Driver Info #0:
    Driver Status: ssb is not active
    Driver Activation Cmd: "modprobe ssb"
  Driver Info #1:
    Driver Status: wl is active
    Driver Activation Cmd: "modprobe wl"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #18 (PCI bridge)

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
Module Size Used by
binfmt_misc 13213 1
parport_pc 32111 0
ppdev 12849 0
snd_hda_codec_realtek 255813 1
snd_hda_intel 24140 2
snd_hda_codec 91537 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13274 1 snd_hda_codec
joydev 17322 0
snd_pcm 80042 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25269 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
wl 2642531 0
i915 460155 4
snd_seq 51303 2 snd_seq_midi,snd_seq_midi_event
acer_wmi 23222 0
sparse_keymap 13666 1 acer_wmi
snd_timer 28659 2 snd_pcm,snd_seq
snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq
drm_kms_helper 40745 1 i915
uvcvideo 66851 0
snd 55435 13 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
psmouse 73312 0
videodev 85289 1 uvcvideo
serio_raw 12990 0
drm 190844 5 i915,drm_kms_helper
soundcore 12600 1 snd
snd_page_alloc 14073 2 snd_hda_intel,snd_pcm
lib80211 14570 1 wl
i2c_algo_bit 13184 1 i915
lp 13349 0
video 18951 1 i915
parport 36746 3 parport_pc,ppdev,lp
ahci 21591 3
tg3 131484 0
libahci 25633 1 ahci

I am pretty sure that your wireless adapter is experiencing the following Broadcom driver bug in Ubuntu 11.04:

https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/732677

As I understand it, there are 2 possible solutions for the BCM4311 wireless problem in Ubuntu 11.04:

1) installing b43-fwcutter and firmware-b43-installer as described here:

https://answers.launchpad.net/ubuntu/+source/gnome-nettool/+question/157369

or

2) manually installing bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu5) from maverick (Ubuntu 10.10) using gdebi

Solution 2 is described here:

https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/732677/comments/23

Farhad (fsanim) said : #6

thank you very much, solution 1 solved my problem. however my laptop isn't showing a WiFi activity light... though that's not too important, i'm just glad to be online. thanks again!

Farhad (fsanim) said : #7

Thanks Mark Rijckenberg, that solved my question.