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I'm using dell n4010 lapt0p and i installed ubuntu 10.04 desktop edition but i'm unable to connect with wireless network? my lspci output is

    00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
03:00.0 Network controller: Broadcom Corporation Device 4727 (rev 01)
04:00.0 Ethernet controller: Atheros Communications AR8152 v1.1 Fast Ethernet (rev c1)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05)

and my iwconfig output is:

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

pan0      no wireless extensions.

my rfkill output is

rfkill list all
0: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

and my lspci -nn -d 14e4: output is:

03:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4727] (rev 01)

now what am i do please help me?

share|improve this question
    
Please edit your question to add the result of this terminal command: lspci -nn -d 14e4: –  chili555 Apr 6 '13 at 12:51
    
@chili555 i've added the output of lspci -nn -d 14e4: please check the same. thanks –  dev Apr 7 '13 at 14:23

1 Answer 1

Please get a temporary wired ethernet connection, open a terminal and do:

sudo apt-get install linux-headers-generic
sudo apt-get install bcmwl-kernel-source
sudo modprobe wl

Your wireless should now be working.

share|improve this answer
    
ok,i'll try.... –  dev Apr 8 '13 at 7:27
    
not able to connect using this....i intalled all of these but no success –  dev Apr 15 '13 at 13:28
    
Does it scan and see networks? sudo iwlist eth1 scan. Does it try to connect but just never authenticate? Is the driver wl loaded? lsmod | grep wl. If not,load it: sudo modprobe wl –  chili555 Apr 15 '13 at 13:57
    
no i'm not able to scan .... –  dev Apr 15 '13 at 13:58
    
iwlist eth1 scan it show that interface does not support scanning... –  dev Apr 15 '13 at 14:10

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