I got a Lenovo Yoga 3 11 and installed Ubuntu 15.10 trouble is

  • no wifi
  • no ethernet (computer is too thin)

I've heard this is a very specific bug. After some reading I have a Qualcomm Atheros Device but forget the exact number. Other questions address the Broadcom case.

After downloading the CD image, I installed a dual boot partition with Windows 10 and Lenovo has the wireless driver for Windows.

Writing this question from my phone will continue to supply more details.


https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1436940

Ubuntu 14.04 Wireless not working: no network interface. Atheros [168c:003e] device (solution was to upgrade to 15.10)

No WiFi on Lenovo Yoga 3


lspci -nn | grep 0280
02:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 20)


ath10k

https://github.com/kvalo/ath10k-firmware ath10k installation

I have no idea what these do or if they are correct

One possible hardware solution is usb ethernet adaptor but guess what? No internet no cd rom so i can't download http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=86;71;101&PLine=71


dpkg -l | grep "linux-firmware"
ii linux-firmware 1.149 all Firmware for Linux kernel drivers
  • Please edit your question and add output of lspci -knn | grep Net -A2; rfkill list terminal command. – Pilot6 Jan 21 '16 at 13:05
  • @pilot6 this is hard to do from my phone. One moment please – john mangual Jan 21 '16 at 13:32
  • You can enable wifi by using the first two commands from my answer. Everything else will be much easier with an internet connection. – Pilot6 Jan 21 '16 at 13:37
  • I asked for a bit different command ;-) – Pilot6 Jan 21 '16 at 13:41
  • @pilot6 wifi does not work even after modprobe and rfkill – john mangual Jan 21 '16 at 14:04
up vote 2 down vote accepted

Your wireless driver requires firmware that is not installed by default. Please download this file on some other computer and transfer it with a flash drive or similar: http://archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.149.3_all.deb

Transfer it to the Ubuntu computer and drag and drop it to the desktop. Now, on the Ubuntu computer, open a terminal and do:

cd ~/Desktop
sudo dpkg -i linux*.deb

After it is done, please do:

sudo modprobe -r ath10k_pci
sudo modprobe ath10k_pci

Your wireless should be working but it might take a reboot.

  • I am afraid this will not help. By default Ubuntu 15.10 contains 1.149.2 firmware that contains the same files related to ath10k as 1.149.3. – Pilot6 Jan 21 '16 at 16:35
  • +1. But I have no idea why this worked. – Pilot6 Jan 21 '16 at 20:03
  • Glad it's working by whatever means! – chili555 Jan 21 '16 at 20:12

The wireless adapter is probably blocked by the platform driver.

You can fix it by running

sudo modprobe -r ideapad_laptop
sudo rfkill unblock all

This should unblock it until a reboot.

To make it permanent you can run

sudo tee /etc/modprobe.d/blacklist-ideapad.conf <<< "blacklist ideapad_laptop"

This will permanently disable the platform driver.

A better solution is to report a bug to launchpad by running:

ubuntu-bug linux

and add there output of

sudo dmidecode | grep "System Information" -A8

If you drop a link to the bug report, I will be able to take care of it.

The issue has been fixed upstream, but it needs to be backported to the current Ubuntu kernels.

  • I can't report a bug without Internet. What do you mean "upstream"? The most recent 15.10 kernel I can find dates to October – john mangual Jan 21 '16 at 13:28
  • I mean that in kernel 4.4 it is fixed. Just run the first two commands. That should be fixed. – Pilot6 Jan 21 '16 at 13:35
  • I noticed blacklists for ath-pci and bcm43 but not ideapad_laptop are those relevant? – john mangual Jan 21 '16 at 13:59
  • No internet still – john mangual Jan 21 '16 at 14:03

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