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link42

Member

Registered: 2014-02-03

Posts: 2

Lenovo Thinkpad E540 Wireless Driver

Hey I have a lenovo thinkpad E540, with and Intel Wireless 7260.

I have been using the wireless on the system for a while now without issue. It has been using the iwlwifi module.

Looks like my last update has broken the module somewhat, I update fairly often and dont think it was a kernel update that broke it. I attempted to try with a LTS kernel but my system is root encrypted and kernel panics upon attempting to boot with the LTS.

non of dmesg, ip, iwconfig, rfkill can see the wireless device.

An lspci -k shows the following:

05:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)
    Subsystem: Intel Corporation Wireless-N 7260
    Kernel modules: iwlwifi

A `modprobe iwlwifi` show the following error:

modprobe: ERROR: could not insert 'iwlwifi': Exec format error

uname -r && pacman -Q linux

3.12.9-2-ARCH
linux 3.12.9-2

From what modprobe is telling me it looks like the kernel is not loading the module, I can see the firmware in /lib/modules/firmware and attempted to use an older version of the firmware to no success.
EDIT: Sorry forgot to mention that I booted to the arch installation media to test and it is able to use the wireless, eliminating the possibility of a broken card.

Any ideas chaps?   ^_^

Last edited by link42 (2014-02-03 03:07:56)

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: Lenovo Thinkpad E540 Wireless Driver

I know that ubuntu patches this driver... whether this is, has been, or will be submitted upstream I have no idea.  But maybe you want to give it a go...
http://kernel.ubuntu.com/git?p=ubuntu/u … d2278c09e9

link42

Member

Registered: 2014-02-03

Posts: 2

Re: Lenovo Thinkpad E540 Wireless Driver

Im not really fimilar with patching drivers, what steps are required for me to ultilize that resource. Thanks ^_^