Ubuntu Networking :: Wifi Not Working For BCM4312 10.10 Maverick Vostro 1520?

Oct 12, 2010

1 ) Machine Brand and Model (PC/Laptop):Dell Vostro 1520 (Laptop)

2 ) Wireless Brand, Model and Wireless Chipset:

Code:

alexander@alexander-V1520:~$ lspci -nn | grep 'Broadcom'
0e:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)

3 ) Check interface:

Code:

alexander@alexander-V1520:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:24:e8:c3:d5:2e
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::224:e8ff:fec3:d52e/64 Scope:Link

[code]....

In System-->Administration-->Additional Drivers I've enabled the 'Broadcom STA wireless driver' and its noted as 'This driver is activated and currently in use.' Changes I made

- I've activated the Nvidia driver.
- I've installed Boxee (media center)
- I'm using CPU frequency scalers for both my cores.
- I've updated my system and am using maverick-security, -updates and -proposed.
- I've installed b43-fwcutter
- I've installed firmware-b43-lpphy-installer

Other than those adjustments the system is completely fresh. When I suspend or hibernate and activate my laptop again it only shows a backlight-lit black screen and does not continue restoring. Other than the occasional flash my cpu 'business' indicator led does nothing. BUT The wireless led is now on. I've tried the Broadcom B43 driver as you could've guessed from the changes I made, no result. I had to use the 'lpphy' installer(for BCM4312 (with Low-Power aka LP-PHY)), the 'legacy' and normal version both gave an error upon executing the post installation script.

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I just installed 9.10 on a brand new Dell Vostro 1520. The WLAN card does NOT work out of the box.

Here is what you have to do.
After install and rebooting insert the live CD
Go to software sources (system > software sources)and check the "officially supported restricted copyright" box
You are then asked to update the available software list, do so.
You will receive an error message since you are not (yet) connected to the internet and all the other repositories are not available.

Now you should be notified that restricted drivers are available, if not you can go to system > hardware. Anyway, now you should be able to activate the Broadcom STA driver. After rebooting you can connect to available wireless networks.

Alternative (in case you are not asked, which happened to me on another Vostro system) system>administration>syaptic package manager
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[Code].....

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[code].....

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[Code]...

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Code:
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eth0 no wireless extensions.[code].....

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Code:
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Code:
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Code:
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Code:
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Code:
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Code:
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[Code]...

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[Code]...

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Details of my system:

Code:

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[code]....

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Code:
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[Code]...

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---------------------
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