I have installed Ubuntu 16.04 on my system via dual boot. I am able to connect to the Internet via Ethernet, but the wifi does not seem to work on my OS. I have already tried the solutions mentioned in 1. WIfi dropping problems in Lenovo Y520 legion 2. WI-FI doesn't work (Hard Blocked) But still I have not been able to fix the problem.Can somebody help me out with the issue ?
2 Answers
Your WiFi chipset is an Intel(R) Dual Band Wireless-AC 8265. Check if iwlwifi
is installed.
It seems that installing the generic package for Intel WiFi would not be enough and you will have to manually place the firmware for your WiFi chipset.
Download it: iwlwifi-8265-ucode-22.361476.0.tgz.
Unpack it and copy it in your /lib/firmware
directory:
sudo cp ~/Downloads/iwlwifi-*.ucode /lib/firmware
And then load the driver with:
sudo modprobe iwlwifi
This information (and more) is available in linux wireless / iwlwifi
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I tried the above mentioned 2 commands, but did not get any output for either of them. I rebooted the system after the execution of the commands and the problem still persists.– SukritFeb 22, 2018 at 2:08
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Also if I use the command rfkill list, I only get the output for bluetooth and nothing for wireless. Plus I again tried the commands lspci | grep Network and sudo iw dev, and again got the same outputs as before.– SukritFeb 22, 2018 at 2:27
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Try to install
linux-headers-amd64
. Did you installed your Ubuntu system with the "secure boot" feature enabled?– kcdtvFeb 22, 2018 at 15:54 -
I am finding 2 commands on the net regarding this installation, which one should I use? 1. sudo apt-get install linux-headers-$(uname -r) or 2. sudo apt-get install linux-headers-generic . Also I don't clearly remember the secure boot status during the time of installation of ubuntu as I had previously modified it a couple of times. But right now it is disabled.– SukritFeb 23, 2018 at 7:41
You can use these commands:
sudo modprobe -r ideapad-laptop
sudo rfkill unblock all
rfkill list all
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2
lspci | grep Network
andsudo iw dev
ìw dev
indicates that you lack a firmware (and a driver). One weird thing: In the first link you gave the user has a Realtek chipset. Could you add in your first message the full output oflspci
? Can you somehow identify the wifi chipset? Maybe in your manual?