Intel Wireless 7260 wifi adapter stops showing up after update to 3.11.0-17-generic

[Mihai]

This bug should affect Ubuntu installs having the above kernel (all 12.04.4 LTS or 13.10 installs will update to it) and the Intel Wireless 7260 adapter.

info on my machine:

    uname -r -v
    3.11.0-17-generic #31~precise1-Ubuntu SMP Tue Feb 4 21:25:43 UTC 2014

I have a Lenovo T440s with Ubuntu 12.04.3 installed, where I've installed the latest kernel using:

    sudo apt-get install linux-generic-lts-saucy

As normal, I updated the kernel to 3.11.0-17-generic. After restart, I could no longer find the wifi adapter to connect with in the top bar network applet nor was wlan0 showing up in ifconfig. I then proceeded to remove 3.11.0-17-generic and booted using 3.11.0-15-generic where my wifi adapter is working well.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1285128

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

It would be very helpful if you could provide the apport logs requested in comment #1.

Also, can you collect the apport data when booted into the 3.11.0-17, so we can see what errors may be appearing in the logs?

[Jannes Verstichel (jannes-verstichel)]

I think this is a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1281964 (which provides a workaround), and https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1251558