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I am trying different solutions for this machine but nothing seems to work.

Hardware details:

lspci -nn -d 14e4:

02:00.0 Multimedia controller [0480]: Broadcom Inc. and subsidiaries 720p FaceTime HD Camera [14e4:1570]
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03)

As reported in the table, I should use the bcmwl-kernel-source, which almost works but the connection gets stuck intermittently. So, it looks like it is connected but it does not work, unless I disconnect it and reconnect it again.

Does anyone have a similar issue or can suggest something to try on this device?

I tried alternate drivers (the non-proprietary ones, as suggested elsewhere) but none of them seem to work at all (the network card does not turn on).

Maurizio
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1 Answers1

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After an automatic software update in Jan 2021 for Ubuntu 20.04 on my MacBook Air 2015 I couldn't enter the wireless network settings anymore.

I managed to get it working again, but I tried many failing recommendations so I'm not sure what steps can be left out and neither can I remember all steps taken. Here's what I think are the essential steps:

broadcom-sta-dkms is a proprietary driver. Ensure you have enabled this under 'Software & Updates / Ubuntu Software'

sudo apt update
sudo apt remove broadcom-sta-dkms bcmwl-kernel-source
sudo apt-get remove --purge  bcmwl-kernel-source
Reboot your computer

And finally the step that made it work again

sudo apt install --reinstall broadcom-sta-dkms
Then reboot your computer

I'm aware some of these commands overlap and even some commands might not be required, but since my computer is working now I can't verify a simplified procedure.

ckielstra
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