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[Solved] Wireless network not working in ubuntu

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motogeeeksatyam   02-27-2010 at 10:43:26 AM

I have a Dell Inspiron 1545 laptop having config:
core2 duo
3 GB DDR2 RAM
320 Hdd
Intel chipset
Gigabit network card

when i boot up the live CD of Ubuntu 9.10 i get a option to connect to my wireless network, but when i install it to my hard disk, the wireless network is not detected or their is no network card detected. Can any body help me with this problem???

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MU_Engineer   03-02-2010 at 03:21:07 AM
Best answer

motogeeeksatyam wrote :

I have a Dell Inspiron 1545 laptop having config:
core2 duo
3 GB DDR2 RAM
320 Hdd
Intel chipset
Gigabit network card

when i boot up the live CD of Ubuntu 9.10 i get a option to connect to my wireless network, but when i install it to my hard disk, the wireless network is not detected or their is no network card detected. Can any body help me with this problem???



Sure. Open up GNOME Terminal and type in "/usr/sbin/lspci" without the quotes. That will list the devices attached to the PCI/PCI Express buses of the laptop, which will include your wireless card. The output looks something vaguely similar to this:

Code :
  1. 00:00.0 Host bridge: Intel Corporation E7501 Memory Controller Hub (rev 01)
  2. 00:00.1 Class ff00: Intel Corporation E7500/E7501 Host RASUM Controller (rev 01)
  3. 00:02.0 PCI bridge: Intel Corporation E7500/E7501 Hub Interface B PCI-to-PCI Bridge (rev 01)
  4. 00:02.1 Class ff00: Intel Corporation E7500/E7501 Hub Interface B RASUM Controller (rev 01)
  5. 00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB Controller #1 (rev 02)
  6. 00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB Controller #2 (rev 02)
  7. 00:1d.2 USB Controller: Intel Corporation 82801CA/CAM USB Controller #3 (rev 02)
  8. 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 42)
  9. 00:1f.0 ISA bridge: Intel Corporation 82801CA LPC Interface Controller (rev 02)
  10. 00:1f.1 IDE interface: Intel Corporation 82801CA Ultra ATA Storage Controller (rev 02)
  11. 00:1f.3 SMBus: Intel Corporation 82801CA/CAM SMBus Controller (rev 02)
  12. 01:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
  13. 01:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04)
  14. 01:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04)
  15. 01:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04)
  16. 03:01.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064 PCI-X Fusion-MPT SAS (rev 02)
  17. 04:03.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
  18. 04:04.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 0d)
  19. 04:05.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)



You want to look for entries that say "Network Controller," "Ethernet Controller" or something similar. Note that even if the device doesn't work, it still shows up here. This printout is from my file server, which has two Ethernet controllers (Intel 82550PM and 82540EM), which you can tell the last two items in the output. Do that on your machine and post back with what wireless card you have and we'll be able to help you. If you can't tell what card you have, then go and post the entire output of /usr/sbin/lspci here like I did.


Message edited by MU_Engineer on 03-02-2010 at 03:22:50 AM
------------------------------ Workstation: Under renovation. Opteron 6234, Supermicro H8QGL, 4x4 GB Corsair 1600C9
File server: 2x Xeon 5260, MSi MS-91A1, 2x2 GB PC2-5300R FB-DIMMS
HTPC: 2x Xeon LV 2.00 Sossaman, TYAN i7520SD, 6 B PC2-3200R
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Mousemonkey   02-02-2012 at 10:33:35 PM

Best answer selected by mousemonkey.

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Mousemonkey   02-02-2012 at 10:33:38 PM

This topic has been closed by Mousemonkey

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