Ubuntu – MacBook can’t find WiFi for Ubuntu 18.04

macbookwireless

I have installed Ubuntu 18.04 on my mid-2009 MacBook Pro, however, I am unable to even search for a wireless internet connection.

I have searched past question from this site and askubuntu re; no wi-fi adapter found, and found they either refer to past versions of Ubuntu or their implementation strategies (e.g. sudo update) does not to MacBooks or don’t work because they rely on internet connection that I do not have (e.g. sudo…reinstall kernel source).

Best Answer

I think I have the exact same hardware (13 inches?) and OS installed, and I too had problems with my wifi card. The easiest workaround is to have an Ethernet connection while you install Ubuntu and check the "install proprietary drivers", but I guess it's too late for that one.

Still, you will need an internet connection through Ethernet to solve this, as you have to download and install the drivers.

If you open "Software & Updates" and go to the "Additional Drivers" tab, what do you see? It should look similar to my screenshot.

Make sure "Using Broadcom 802.11 ..." is selected, probably it says "Do not use this device". Once you click the other radio button and then hit apply, it should download and install the driver.

Related Solutions

Ubuntu – No Internet after upgrading to 12.10

I had the same problem and resolved it by disabling dnsmask. Run:

gksu gedit /etc/NetworkManager/NetworkManager.conf

And comment the dns=dnsmaaq line appearing in:

[main]
plugins=ifupdown,keyfile
dns=dnsmasq

Comment it out by writing # before it:

[main]
plugins=ifupdown,keyfile
#dns=dnsmasq

Then, to apply your changes, reboot or restart networking.

Ubuntu – “No Wi-Fi Adapter found” – Dell XPS 13 on Ubuntu 18.04

Code:

sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6

Reboot. If you notice weak signal try

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1

and see if it is better, if not do

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2

If that doesn't work I can suggest one more thing: You will have to copy and paste the Wifi - Adapter from another computer or via the internet and install it. I do not know how to do this way, but maybe if you do some research you will find an answer.

Best Answer

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Ubuntu – No Internet after upgrading to 12.10

Ubuntu – “No Wi-Fi Adapter found” – Dell XPS 13 on Ubuntu 18.04

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