Ubuntu 14.04 reports no wireless card with Intel Wireless 7260

[Trekkin]

Hello. I installed Ubuntu 14.04.1 LTS on an Asus Q302 today, and while it can find my usb-to-Ethernet adapter it cannot use my wireless card, which lspci claims is an Intel Wireless 7260 rev cb. The wireless-info is here. Additionally:

lshw -C network

  *-network UNCLAIMED
       description: Network controller
       product: Wireless 7260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: cb
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f7c00000-f7c01fff
  *-network
       description: Ethernet interface
       physical id: 1
       logical name: eth0
       serial: 00:50:b6:10:75:ca
       size: 100Mbit/s
       capacity: 100Mbit/s
       capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=asix driverversion=22-Dec-2011 duplex=full firmware=ASIX AX88772 USB 2.0 Ethernet ip=192.168.1.3 link=yes multicast=yes port=MII speed=100Mbit/s

If anyone could help me fix this, I'd very much appreciate it; I'm very new to Linux.

[ThatBum]

I bet it needs a proprietary driver. Connect to the Internet using the Ethernet adapter and look in the Additional Drivers tab of the Software and Updates section from settings, and see if there's anything there. If not try updating first.

[Trekkin]

Nothing is there, even after I updated.

[ThatBum]

Perhaps these will be of assistance?
Intel® Wi-Fi Products — Linux* support for Intel® Wi-Fi Adapters
iwlwifi - Linux Wireless
No wireless for Intel Corporation 7260 version 63 - Ask Ubuntu

[jeremy31]

For whatever reason, Ubuntu did not load iwlmvm and it is needed to load the ucode file, see if

sudo modprobe iwlmvm

does anything and rerun the wireless script so we can see any dmesg errors

[Trekkin]

It returned nothing, and my wireless is still nonfunctional, so i will assume no. The new wireless-info is here.

I tried running the backport from the third link in ThatBum's post; it quit after

/Desktop/backports-3.11-rc3-1/net/wireless/sysfs.c:151:2: error: unknown field ‘dev_attrs’ specified in initializer
.dev_attrs = ieee80211_dev_attrs,

[jeremy31]

Might be able to get this to work using a backdoor approach as the revision you have isn't listed for iwlwifi yet as far as I know

cat /sys/bus/pci/devices/0000:02:00.0/modalias

[Trekkin]

It returned

pci:v00008086d000008B1sv00008086sd00004C70bc02sc80i00

[chili555]

A Google for your device:

Intel Corporation Wireless 7260 [8086:08b1] (rev cb)
Subsystem: Intel Corporation Device [8086:4c70]

...shows but one interesting post: http://ubuntuforums.org/showthread.php?t=2238735

To cut to the conclusion, the poster says:

the card is likely an OEM version with a custom subsystem revision number that is not on the alias list for the driver. If this conclusion is correct then I would have to either wait until upstream finds and adds the number or edit the source and manually compile the driver every time that there is a kernel update.

Unfortunately I needed to use the laptop for work, so I ended up swapping the card with the Atheros card from my wife's laptop. She is running Windows, so the Intel card is OK in her system and the Atheros card just works in Ubuntu.

If you'd care to experimentally; no, highly experimentally edit the .c code and compile your own driver, I will be happy to get out my plasma cutter, hammer and other tools of destruction.

If, on the other hand, you'd care to buy a fully supported USB wireless, consult the many threads on this forum on that subject.

EDIT: If Jeremy wants to attempt it, please proceed.


-------------------------
Note to Chili: pcie/drv.c around line 334 in backports 3.16-1.

[Trekkin]

I'm game to try compiling my own driver. Strictly speaking, this machine doesn't need wireless for what I need to do with it, so I'm not pressed for time.

What do I need to do?