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Wifi doesn't work on my laptop running ubuntu 12.04

post #1 of 22
10/22/12 at 11:31am
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So A cool guy on OCN named fir3chi3f gave me a hard drive for my laptop so I decided to wipe the old one and install ubuntu on it.

Long story short, I can't figure out how to get the wifi to connect. Wired works fine and wifi worked when I was running windows xp. I just assume the issue is because of some drivers that the old hard drive had.

This is the first time I have used ubuntu so any advice helps.
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post #2 of 22
10/22/12 at 11:36am
The issue is likely the drivers aren't installed for the WIFI module or its not a support module - if you can find out which model of wifi adapter you have (what chipset) you can likely find the drivers for it wink.gif
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post #3 of 22
10/22/12 at 11:45am
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WOO! Since when did I become a cool guy?!

Anyway, use this command and post us the output:
Code:
lspci
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post #4 of 22
10/22/12 at 1:04pm
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alright, here comes a big copypaste:
Code:
00:00.0 Host bridge: Advanced Micro Devices [AMD] nee ATI RS480 Host Bridge (rev 10)
00:01.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS480 PCI Bridge
00:04.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS480 PCI Bridge
00:05.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS480 PCI Bridge
00:06.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS480 PCI Bridge
00:12.0 IDE interface: Advanced Micro Devices [AMD] nee ATI IXP SB400 Serial ATA Controller (rev 80)
00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI IXP SB400 USB Host Controller (rev 80)
00:13.1 USB controller: Advanced Micro Devices [AMD] nee ATI IXP SB400 USB Host Controller (rev 80)
00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI IXP SB400 USB2 Host Controller (rev 80)
00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI IXP SB400 SMBus Controller (rev 82)
00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI IXP SB400 IDE Controller (rev 80)
00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI IXP SB4x0 High Definition Audio Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI IXP SB400 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI IXP SB400 PCI-PCI Bridge (rev 80)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS482 [Radeon Xpress 200M]
02:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5788 Gigabit Ethernet (rev 03)
02:04.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
02:04.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller
02:04.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)
02:04.3 SD Host controller: Texas Instruments PCIxx12 SDA Standard Compliant SD Host Controller
30:00.0 Network controller: Broadcom Corporation BCM4311 802.11a/b/g (rev 01)
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post #5 of 22
10/22/12 at 1:16pm
  • Shrak
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Quote:
Originally Posted by lolllll117 View Post

alright, here comes a big copypaste:
Code:
[B]30:00.0 Network controller: Broadcom Corporation BCM4311 802.11a/b/g (rev 01)[/B]

There's your card, and Ubuntu should have prompted you to install the proprietary drivers after install ( usually ). You should be able to click on " Additional Drivers " under the Unity menu and it should show you there is extra hardware drivers to install.

If not you can try (from the terminal);

sudo apt-get install firmware-b43-installer
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post #6 of 22
10/22/12 at 6:40pm
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Quote:
Originally Posted by Shrak View Post

There's your card, and Ubuntu should have prompted you to install the proprietary drivers after install ( usually ). You should be able to click on " Additional Drivers " under the Unity menu and it should show you there is extra hardware drivers to install.
If not you can try (from the terminal);
sudo apt-get install firmware-b43-installer

oh yes, i remember it prompting that and i remember installing those drivers. no success frown.gif
i'll try that code you posted.
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post #7 of 22
10/22/12 at 9:18pm
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i tried the code you posted, but nothing.

also i forgot to show a screenshot of this:

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post #8 of 22
10/22/12 at 9:53pm
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Hmm, well something else I see from my google-fu is this command:
Code:
sudo apt-get remove --purge bcmwl-kernel-source

Reboot and see if it works. If it doesn't, then give this one a go:
Code:
sudo apt-get install linux-firmware-nonfree

Should probably remove some of the stuff that hasn't been helping, I wouldn't until we get it working tongue.gif
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post #9 of 22
10/23/12 at 7:48am
  • Shrak
  • (╯°□°）╯︵ ┻━┻
Quote:
Originally Posted by lolllll117 View Post

i tried the code you posted, but nothing.
also i forgot to show a screenshot of this: Warning: Spoiler! (Click to show)

In the terminal type " lspci -v " and post the output, it will tell if the wireless card is using the driver module.

like;
Quote:
0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at f69fc000 (64-bit, non-prefetchable)
Capabilities:
Kernel driver in use: b43-pci-bridge
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post #10 of 22
10/23/12 at 12:11pm
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Quote:
Originally Posted by Shrak View Post

In the terminal type " lspci -v " and post the output, it will tell if the wireless card is using the driver module.
like;

I like that alot better than what I said. Listen to Shrak before giving my random commands a try tongue.gif
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