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I have installed ubuntu 15.04 along with windows 10 dual boot.Wireless is not working properly in ubuntu.Its not listing the networks. On the other hand in windows its working absolutely fine. Please suggest which driver is needed to make wifi work on ubuntu.

Output of -- lspci -knn | grep Net -A2

03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20)
   Subsystem: Lenovo Device [17aa:3545]
Pilot6
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Anurag
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  • Please [edit] your question and add output of `lspci -knn | grep Net -A2` terminal command. – Pilot6 Aug 16 '15 at 15:29
  • 03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20) Subsystem: Lenovo Device [17aa:3545] 04:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Venus XTX [Radeon HD 8890M / R9 M275X] [1002:6820] (rev 81) Above is the outpute for the comand – Anurag Aug 16 '15 at 15:38
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    This adapter is not supported yet. – Pilot6 Aug 16 '15 at 16:45
  • @Pilot6 that means I have to use an external WiFi adapter. – Anurag Aug 16 '15 at 16:58
  • @Pilot6: could you convert last comment above this on to an answer? – Fabby Aug 16 '15 at 17:23
  • You could try to install the latest firmware(updated just 3 days ago) from here: https://wireless.wiki.kernel.org/en/users/Drivers/ath10k/firmware – Yalok Iy Aug 16 '15 at 17:24
  • I will try n share. – Anurag Aug 16 '15 at 17:36
  • @Fabby I gave this answer for this adapter once or twice, but I can't find duplicates. – Pilot6 Aug 16 '15 at 18:13
  • @Anurag ath10k does not support it yet. But I am sure it will soon. – Pilot6 Aug 16 '15 at 18:15
  • ok I am just installing it and checking.....if nothing works i will use a wireless adapter – Anurag Aug 16 '15 at 18:18
  • @Yalokly it updated the firmware its not working. – Anurag Aug 17 '15 at 04:02
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    possible duplicate of [My wifi Qualcomm Atheros Device \[168c:0041\] (rev 20) doesn't show up and work in Ubuntu14.04.3 on lennovo flex 3 14](http://askubuntu.com/questions/678145/my-wifi-qualcomm-atheros-device-168c0041-rev-20-doesnt-show-up-and-work-in) – Pilot6 Sep 28 '15 at 21:01
  • @Pilot6 dude u marked this as duplicate I asked this question on 16th Aug and the question you marked was asked on 25th Sep.How this can be a duplicate. – Anurag Sep 29 '15 at 06:55
  • It does not matter much when the question was answered. But I marked it as a duplicate of the question with the working solution. – Pilot6 Sep 29 '15 at 08:09
  • ohh great thanks. I fixed this issue with bellow answer mentioned by @5ud0 so i accepted that answer. Thanks Pilot6 for helping. – Anurag Sep 29 '15 at 08:31

2 Answers2

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Follow these steps to get your WIFI. Prior to this update your kernel by installing from this page

http://kernel.ubuntu.com/~kernel-ppa/mainline/

I installed 4.0.0 since latest 4.2 crashes my bluetooth and then follow the steps from here :

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1436940/comments/34

5ud0
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  • It did'nt work.. – Anurag Sep 04 '15 at 13:48
  • Are you sure.Mine is the same laptop! – 5ud0 Sep 04 '15 at 17:08
  • Did u install the kernel and followed the steps exactly? and also added the line to modprobe? – 5ud0 Sep 04 '15 at 17:08
  • Yaa i tried with both the kernel's 4.2 and 4.0 with both its not working .. – Anurag Sep 07 '15 at 13:27
  • Sorry dude,Me and my friends got the same laptop Lenovo Z51-70. One difference from yours is we installed Ubuntu 14.04 or elementary freya(my recommendation ;) ).May be you might have luck with that – 5ud0 Sep 08 '15 at 04:05
  • Thanks, But i can't downgrade now.I have to take backup and I will try this weekend.For now I am using external usb wifi. – Anurag Sep 08 '15 at 06:46
  • It worked for me thanks @5ud0. I downgraded to 4.0 and it works fine. – Anurag Sep 29 '15 at 06:50
  • getting error `modprobe: Error: could not insert 'ath10k_pci' : Required key not available` for lenovo Z51 with Ubuntu 16.04 LTS – Akshay Khale May 01 '16 at 17:03
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I got it working for Ubuntu 15.4 I worked on the answer given by 5ud0 and made it work up here. Just to make everyone's life easy here is the zip file. It has a patched code and the instructions Hope it helps This was put together by one of my colleague in office.

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