Ubuntu 15.10 Lenovo Yoga 3 14,no network devices available

Question

I know there were some discussion on this machine about the wireless adapter being hardblocked in 14.04. However, After I installed 15.10, the wireless adapter seems recognized now. It shows "no network devices available" now. However, when I ran lspci, it gave me:

02:00.0 Network controller: Qualcomm Atheros Device 0041 (rev 20)

When I ran ifconifg -a, it gave me:

Link encap: Local Loopback
inet add:127.0.0.1

It seems a different question now so I decided to ask about it.

Any advice?

Edit:

I tried the solution to Lenovo Flex 3 but no luck. I'm a newbie please let me know if anything is needed.

Plus, the usb wireless adapter is not working either. It used to be working when I was using ubuntu 14.04 alongside with Win 8 64. It can let me connect to wifi but it was either super slow or cannot access internet at all. — Wentao Lu, Nov 15 '15 at 15:47
Possible duplicate of My wifi Qualcomm Atheros Device [168c:0041] (rev 20) doesn't show up and work in Ubuntu 14.04.3 on Lenovo flex 3 14 — Pilot6, Nov 15 '15 at 16:17
I am also having a similar problem, on an Acer laptop with the following line in lspci: 0e:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0) — Ben Kraft, Dec 24 '15 at 18:55

score 0 · Answer 1 · answered Dec 26 '15 at 05:13

I had what seems to have been a similar problem (wireless, ethernet, USB mouse all not working). I'm not 100% sure what I did that fixed it, but the issue seems to have been that my kernel headers hadn't installed correctly, I think due to some other installation failures. (I noticed this because lsmod showed a lot fewer modules than I expected.) I booted to an older kernel, which worked fine, then did sudo apt-get dist-upgrade (which prompted me to fix broken packages, which I did) and sudo apt-get install linux-headers-4.2.0-22-generic (since I had the 4.2.0-22 kernel). This apparently caused kernel modules to get installed correctly, and then booting to the new kernel worked.

Ubuntu 15.10 Lenovo Yoga 3 14,no network devices available

1 Answers1