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2 weeks after I bought t440s with Windows 8 bundled, I'm freaked out with it and want to replace with Precise. Using USB boot to make sure if it's run although the device looks like already certified by Canonical, Ubuntu can't find wireless device. I've found a workaround for a similar issue, I still don't know what to do.

The same URL from above says:

Network
    Intel Corporation Lynx Point-LP PCI Express Root Port 6
    Ericsson Business Mobile Networks BV Unknown

Also,

$ lsmod|grep intel
:
snd_hda_intel
kvm_intel
aesni_intel
ghash_clmuni_intel, aesni_intel
intel_ips

I'm not an expert at all with devices...I'd appreciate solution. Thanks!

Update) I'm required to use Ubuntu 12.04.

Update-2) I upgraded to 13.04, hopelessly expecting that doing so would just resolve the issue. Ended up seeing no improvement. I found the model of wireless module is Intel Wireless-N 7260 from this page.

IsaacS
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4 Answers4

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Try going to the computer manufacter's web site and look for the wireless drivers for Windows and use windows wireless drivers from the Ubuntu web store. I hope that works, I have never had any wi-fi issues, so if this doesn't work, I'm sorry.

spinster3908
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  • Good to know about Windows Wireless Drivers. Now I'm looking for the way to use it on USB boot (I want to verify if Ubuntu works on this machine first by USB).. – IsaacS Oct 19 '13 at 17:07
  • When you made the bootable USB did you set it to preserve space? If so then you can install windows wireless drivers on the USB. If you didn't I would suggest trying again on putting Ubuntu on the USB and preserve some space. – spinster3908 Oct 20 '13 at 15:28
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Answering my own question since I finally got wifi working on my t440s with Ubuntu 13.04.

I did exactly what is recommended in this answer, except that I obtained Wireless 7260 from here instead of the link in the answer that seems someone's dropbox.

Although from this website the wifi module bundled on t440s is Intel Wireless-N 7260, the driver I mentioned above, Intel Wireless 7260 (without N), seems to be working fine.

Update) After some while, wifi has been working fine with a following few tweaks:

  • Every time I reboot the OS, I need to run:

    sudo modprobe iwlwifi

  • Though only occasionally, wifi device goes inactive and I have to build iwlwifi again same as in the link above:

    cd Desktop/backports-3.11-rc3-1/ make defconfig-iwlwifi make sudo make install

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IsaacS
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    Note for all new owners of the T440s: The current LTS-Version Ubuntu 14.04 detects all hardware components automatically, including WiFi and WWAN. =) – DiableNoir May 27 '14 at 10:57
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As my answer in wireless not enabled in 12.04, Lenovo T440s points out, if you want to get wireless in 12.04 you have to use a newer kernel version, 3.11 or later. I also have Intel Wireless 7260 (not sure about the -N) and either of the following works:

  • Installing a newer kernel version, by installing linux-generic-lts-saucy, in 12.04.3 or older.
  • Using the recently released and latest version, 12.04.4, from http://www.ubuntu.com/download/desktop

Note that Ubuntu 13.10 also works out of the box (but I personally prefer LTS versions).

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Mihai
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I had the same problems in the beginning, trying 12.04 and 13.04

It was solved after upgrading to 13.10 where all drivers where detected automatically.

alphak
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