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Does anybody know how to configure Wi-Fi on a Lenovo ThinkPad s440 with Ubuntu 12.04 LTS?

I can't configure it even with LAN. Wi-Fi is the first thing I need. I can't find any drivers for Linux. As I see it from (official specs link) Ubuntu uses "Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller" to establish network.

Can anybody suggest a solution? A driver, a way to configure Wi-Fi or anything?

$ lspci -nn | grep 0280
04:00.0 Network controller [0280]: Intel Corporation Device [8086:08b2] (rev 73)
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I installed iwlwifi module using instructions from another thread. I just needed to know my Intel 7260 to find this answer.

So, steps (by chili555) are:

I suggest you download this to your desktop: http://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.11-rc3/backports-3.11-rc3-1.tar.bz2 Right-click it and select 'Extract Here.' Now open a terminal and do:

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

Now download the required firmware here: https://dl.dropboxusercontent.com/u/58267392/iwlwifi-7260-7.ucode.zip Please download it to your desktop. Right-click and select 'Extract Here.' Now open a terminal and do:

sudo cp Desktop/iwlwifi-7260-7.ucode /lib/firmware/
sudo modprobe -r iwldvm  <--If it is not loaded, OK, please proceed
sudo modprobe -r iwlwifi <--If it is not loaded, OK, please proceed
sudo modprobe iwlwifi

UPDATE: Intel wireless 7260 driver crashes, how do I work around it?

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  • The device quoted above is ethernet, not wireless. It's impossible to propose a better solution without details: lspci -nn | grep 0280. If yours is the Intel 7260 device, there are several threads here about how to install it. – chili555 Jan 25 '14 at 02:24
  • Thanks a lot! I could first define my device, then try to get precise solution. – magnump0 Jan 25 '14 at 09:41
  • May we assume it's now working correctly? – chili555 Jan 25 '14 at 13:19
  • Yes, everything works now, thank you very much! – magnump0 Jan 26 '14 at 12:34
  • Now I have another problem - system crash and unstable wifi. – magnump0 Jan 27 '14 at 21:01
  • You might try the updated firmware file: askubuntu.com/questions/411475/problem-with-the-intel-wireless-7260-driver/ As for the system crash, I see many of these: "ACPI Error: Method parse/execution failed" I am no expert on ACPI problems but I suggest you search for that error and a solution. – chili555 Jan 27 '14 at 21:29
  • What about this lines in /var/log/syslog: Jan 28 00:58:45 o1dnik-ThinkPad-S3-S440 kernel: [10009.599503] iwlwifi 0000:04:00.0: Failed to create debugfs directory under netdev:wlan0 Jan 28 00:58:45 o1dnik-ThinkPad-S3-S440 kernel: [10009.610319] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD They are related to only wlan? – magnump0 Jan 28 '14 at 01:01
  • The second message (xhci_hcd) isn't related to wireless. That's related to USB. The first on I have seen only a few times, always related to firmware (!!!) Did you install the newer firmware and reboot? – chili555 Jan 28 '14 at 01:27
  • Yes, I installed a newer version and it seems to me wifi works more stable. Thanks to you, it is really helpful. I am not sure if it will help with ACPI error, but I used an acpi_os=Windows noapic linux kernel boot flag. ThinkPad S440 is made with Windows8+ in mind, so I suppose it could help somehow. As I see, there are lots of errors. How do you think on asking somebody on some special forum (don't know yet which one)? – magnump0 Jan 28 '14 at 11:31
  • I suggest you simply ask a new question here on askubuntu. I doubt you need those boot parameters, but that is not my specialty. I run a Lenovo T410i and added nothing special to GRUB. – chili555 Jan 28 '14 at 13:29