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No wireless in fedora 21?

asked 2016-06-21 20:16:38 -0500

dave12 gravatar image

updated 2016-06-23 11:00:31 -0500

Just installed F1 on Lenovo ideapad, U350. I have wired ethernet connection, but no wireless. Can anyone point me in the right direction? Thanks!

6/23/16 Update: Same system now with F24. Still the same wifi onboard.

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please provide us with your wirecard infromation

sudo lspci | grep Wire

please provide us the output.

By the way Fedora 21 has reach end of live you better install Fedora 23 or 24 as 22 will reach end of live in the next two months.

aeperezt gravatar imageaeperezt ( 2016-06-21 21:42:51 -0500 )edit

Try one of these two commands to see which wifi chipset your laptop uses:

lshw -class network |grep -i 'description: wireless' -A 11


lspci -k|grep -i -E "wireless|wlan|802.11" -A 2

You can also check output of these commands on my blog:

valentt gravatar imagevalentt ( 2016-06-22 02:01:39 -0500 )edit

I came across an old Trendnet wireless dongle that was in the back of one of my drawers. It works for some reason. I'd still like to figure out my internal wireless card, though.

dave12 gravatar imagedave12 ( 2016-06-22 11:40:26 -0500 )edit

You would have better installed a release of Fedora Linux that is actively supported with crucial security updates (and updates in general). Fedora 23 and 24 would be an option. Please re-install or upgrade asap.

florian gravatar imageflorian ( 2016-06-22 23:14:50 -0500 )edit

Upgraded to 23. It did nothing.

dave12 gravatar imagedave12 ( 2016-06-23 06:59:17 -0500 )edit

2 Answers

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answered 2016-06-22 06:35:03 -0500

dave12 gravatar image

updated 2016-06-22 06:38:38 -0500

Thanks for responding!

sudo lspci | grep Wire - I get nothing back.

lspci -k|grep -i -E "wireless|wlan|802.11" -A 2 - I get "lspci -k|grep -i -E "wireless|wlan|802.11" -A 2 03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) Subsystem: Broadcom Corporation Device 04ad Kernel driver in use: b43-pci-bridge"

BTW, I installed F21 out of convenience. I just switched back to fedora and F21 was recommended by the designer of a particular software package for Gnuradio as being more stable and fewer issues with wireless (Ha!). That was for my desktop.

If truly needed, I can upgrade my laptop to 23 or 24 (when it arrives).


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Well Fedora 24 has arrive.

aeperezt gravatar imageaeperezt ( 2016-06-22 09:54:22 -0500 )edit

Perhaps I will arrive, as well? :)

dave12 gravatar imagedave12 ( 2016-06-22 13:25:26 -0500 )edit

It looks like that device wasn't supported at that time. So definitely try installing F24 now.

ssieb gravatar imagessieb ( 2016-06-22 23:34:59 -0500 )edit

I am doing that as we speak.

dave12 gravatar imagedave12 ( 2016-06-23 07:01:49 -0500 )edit

@dave12: Just as an explanation: BCM4312 has a proprietary driver which cannot be shipped with Fedora. Not with any Fedora, so in that sense F21 is no better with Wifi than F23 or 24. You need to install non-free software to get this chip working. Google for it. This problem has been targeted > 100 times on this website. Or change to a well supported Intel chipset...

florian gravatar imageflorian ( 2016-06-23 09:45:10 -0500 )edit

answered 2016-06-23 11:07:35 -0500

aeperezt gravatar image

There is no driver on RPM fusion for your card so you can try this I have based on Arch Linux wiki page, I do not have a broadcom card so cannot fully tested

First install development tools

sudo dnf install kernel-devel make gcc

Then go here and download the 34 or 64 kernel module Linux STA then uncompress it on a folder

tar xvzf hybrid-v35_64-nodebug-pcoem-6_30_223_271.tar.gz



If it compiled with no problem

sudo make install

Then you need to be sure to remove broadcom kernel modules

sudo rmmod b43
sudo rmmod ssb

Then you can test you new kernel module

sudo modprobe wl

If that works you can add the b43 and ssb module to the kernel blacklist on /etc/modprobe.d/

Hope this help, normally will say install rpmfusion and install broadcom-wl or akmod-wl but rpmfusion is not working for now.

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Asked: 2016-06-21 20:16:38 -0500

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Last updated: Jun 23 '16