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I'm trying to get wireless card working, Conditions: 

ubuntu 12.04 3
sony vaio duo 13
Wi-Fi Adapter Broadcom BCM43241 (802.11a/b/g/n)

However, first of all 

$ lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09)
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)

and

$ sudo lshw -class network
(shows no result)

Here's the result for dmesg And it seems nothing indicating the network card, even though it works in dual-booted Win8 fine (no hardware problem).

How could I make Broadcom Wi-Fi Adapter show up in lspci? Or, is there a way around to make online?

Thanks in advance.

(edit1) Responding to the first answer below, here's my update. I have ubuntu 12.04-3 with Linux Kernel 3.8.0, so the kernel brcmfmac exists. However, this command

$ sudo modprobe brcmfmac

doesn't change the situation.

In my understanding, the device must be recognized before the driver is installed as the official(?) tutorial says. (google "ubuntu WirelessTroubleShootingGuide" as I am not allowed to put more hyperlink.)

What am I missing?

yhk
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1 Answers1

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The drivers for your card didn't make it into the Linux kernel until 3.7 (also see this), and I believe 12.04 is still using 3.2.x. You will need to upgrade to 13.04 or else compile and install the driver yourself. If you're not familiar with compiling and installing drivers in Linux, then I would upgrade to 13.04.

Freedom_Ben
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    I see, I was aware of the link for compiling the module. But I was not sure I can do it with hardware not detected at all as described in the question. And I didn't even know it would be available in 13.04.　Thank, Freedom_Ben! – yhk Sep 22 '13 at 03:08
  • I have some update -- I'm glad if you check it out.. – yhk Sep 22 '13 at 06:45
  • @yuyu that is really strange. I would now be inclined to think hardware problem but you say it works fine in Windows... I'll have to think on this – Freedom_Ben Sep 23 '13 at 18:58
  • I have the same problem here in Arch Linux. This BCM43241 wifi card just seems to be completely non-existent when in Arch, but it works just fine in Windows. – trusktr Nov 10 '13 at 18:02