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I recently installed Ubuntu 12.10 alongside Windows 7 on a Dell Latitude D620 with an Intel Core 2 Processor.

I cannot connect to a wireless network when using the operating system. When I use Windows 7, it connects to my router, along with many other devices. When I click on the Network button at the top of the screen, it doesn't list any wireless connections. How can I access my wireless internet connection?

(Note: I don't have a wired connection, so I can't download any software)

lsusb

Bus 002 Device 002: ID 413c:a005 Dell Computer Corp. Internal 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 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 004 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 002 Device 003: ID 0b97:7761 O2 Micro, Inc. Oz776 1.1 Hub
Bus 002 Device 004: ID 0b97:7762 O2 Micro, Inc. Oz776 SmartCard Reader

lspci

00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express 
Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 01)
00:1c.2 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 3 (rev 01)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7-M Family) SATA Controller [IDE mode] (rev 01)
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 01)
03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller (rev 40)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
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Can you add the output of lsusb and lspci to your question please? –  Seth Dec 29 '12 at 2:20
    
Is there an option to enable wireless in the menu? –  Im'juz ChanYun Dec 29 '12 at 9:30
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marked as duplicate by Luis Alvarado, Seth, Eliah Kagan, Mik, Chris Wilson Feb 10 '13 at 19:25

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1 Answer

I had this same problem when installing Ubuntu on a friend's netbook. The solution was to install the proprietary driver.

System Settings > Software Sources > Additional drivers tab. You should see the Broadcom driver listed. Choose it and click Apply Changes.

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