Hello!
There is a laptop HP Pavillion dv5 .

  1. When installing Ubuntu 12.10 neither a wired network was found (the connected cable was not perceived at all), or wi-fi .
  2. When installing Ubuntu 12.04 wired network was also not found, but it connected to wi-fi . After a day of successful work and updates, again no network was found. And the home wi-fi network is not visible, but the neighbor is visible.

Installed through wubi and through a bootable USB flash drive.

Tell me, please, how is the connection to the network stable?

UPD: sudo lshw -class network

 *-network description: Wireless interface product: BCM4312 802.11b/g LP-PHY vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: eth2 version: 01 serial: 00:21:00:71:b2:96 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11bg resources: irq:16 memory:9e200000-9e203fff *-network DISABLED description: Ethernet interface product: RTL8111/8168B PCI Express Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 02 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:48 ioport:6000(size=256) memory:94010000-94010fff memory:94000000-9400ffff memory:94020000-9402ffff
  • Read this article. [Here] [1] everything is detailed how to set up. [1]: help.ubuntu.ru/wiki/… - protos-kr
  • Please add sudo lspci -v output - PocketSam
  • @PocketSam, added to the question - Deleted
  • @Iranda, I edited my answer. Please read it. - PocketSam

4 answers 4

@Iranda , please add dmesg output | grep b43

After that you can immediately try the following commands.

 sudo apt-get remove --purge bcmwl-kernel-sourcesudo apt-get install b43-fwcuttersudo apt-get install firmware-b43-installer

And then reboot. This is all for the wireless network. Now I have to go. The rest will see later. :)

It is also said that the problem disappears with the installation of the kernel above 3.1 rc3. Again, you can download all the necessary packages on another PC using this script: http://paste.org.ru/?as3sru

You can also use it to download packages above. Python grabpackages.py -o downloader_script b43-fwcutter firmware-b43-installer

  • The problem is that I can not install anything. Wired network is also not. Thank. - Deleted
  • @Iranda, try first to execute the first command - this is the removal. And you can download the necessary packages with all dependencies on another PC. The script for this was done on 12.04, but I hope you will also like it. paste.org.ru/?imzoul - PocketSam

in the console from the root perform iwlist scan | grep -i "essid" can see my network?

  • Its network is not visible, neighbor - yes - Deleted

Try to start from the terminal (console) to do it:

 sudo service network-manager stopsudo service network-manager start

It is very possible that the network will appear, at 12.04 very "interesting" chips appear ... IMHO, the kernels, starting from 2.6.34, are "undershot" by such weight as ACPI, APM, etc ... Yes and " pebbles "went rather weak - in the era of versions 6.06 - 9.04 everything worked like a clock on the" Coppermine - Mendocine ", the composer spun on such pencils, which many have long forgotten. And now - only NVidia, Intel ... 4 x iCore7 = Celeron II (Coppermain) 600 per 100MHz bus :-)))

  • Alas, the network did not appear - Deleted
  • Although strange, but for a few minutes it was still - Deleted

In NetworkManager, select "create a wireless network", enter its SSID, encryption type (if any) and key, or "none" if there is no encryption. In the properties of NM, select "wireless" and check the "connect automatically" box. Restart NM. You will need to automatically connect to your network, regardless of whether it sees NM or not ... NM, maybe it’s done, it’s possible that the kernel will have time to finish it once before the next call Go to the new hardware !!! (core !!! axis !!!) with even more raw implementation ;-( The second option - the Brodkomovsky nuclear module was set up with an additional pair of options - which, I don’t remember, it was two years ago on another axis (Lucid) and with a different type of card, maybe you have a similar case (as root gave "modprobe bcm43xx -ssb-even-kill-not-remember" in the console, then "depmod -a" ... These options configured a card for power, prohibited promisc- and AP-configurations ...

  • PS Check your access point settings again - maybe it works in the "hidden" mode - it does not send beacon-packets ... - RootKiiit
  • PPS Perhaps you need a driver and not bcmwl, but just bcm (43) ... - RootKiiit