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Wifi not working in Fedora

asked 2014-05-16 21:47:37 -0500

abadrinath gravatar image

updated 2014-09-12 22:59:25 -0500

mether gravatar image

Hi !

I've had Fedora for a couple of weeks now without problems. However, I do notice that the wifi does not work at all. The wifi chip is found; lspci returns:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
03:00.0 Ethernet controller: Qualcomm Atheros QCA8172 Fast Ethernet (rev 10)

So far, I have installed the b43 driver and the broadcom-wl driver. This may be a duplicate, but there is no answer that works for me. I use KDE, and I have checked "Network Interfaces" which only include lo and p8p1(eth0)

Outputs of various important commands:

iwconfig:

p8p1      no wireless extensions.

lo        no wireless extensions.

ifconfig:

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 2  bytes 100 (100.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2  bytes 100 (100.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p8p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.13  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 fe80::221a:6ff:fe95:b943  prefixlen 64  scopeid 0x20<link>
        ether 20:1a:06:95:b9:43  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes ...
(more)
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Solved now, answer below!

abadrinath gravatar imageabadrinath ( 2014-06-27 03:39:53 -0500 )edit

2 Answers

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answered 2014-05-16 21:50:24 -0500

abadrinath gravatar image

updated 2014-05-17 02:57:25 -0500

Thanks everybody,

Now the problem is fixed. I noticed that the wl driver wasn't "signed". Turned off secure boot, and everything works like a charm.

I decided to create a little how-to guide on getting the wifi to work:

Step 1. Install the broadcom-wl driver (broadcom-wl.noarch : Common files for Broadcom 802.11 STA driver) using sudo yum install broadcom-wl OR yum install broadcom-wl.

Step 2. Depending on your wireless card model, you might need to install b43 driver. Install using sudo yum install b43-fwcutter OR yum install b43-fwcutter.

Step 3. Reboot to the BIOS options, and deselect the Secure Boot if you haven't already. After login, the wireless should work on its own, but if not, go to a terminal and execute modprobe wl OR/AND modprobe b43 to recognize it.

Note: If there is something wrong in this way of doing it, could you add a comment saying what's wrong??

Thanks,

James

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here is what I get... b43-fwcutter is already installed, modprobe wl command not found, modprobe b43 operation not permitted, my wireless card shows up in lspci and iwconfig shows no wireless extensions.

bigwhitebird29 gravatar imagebigwhitebird29 ( 2017-01-19 16:48:54 -0500 )edit
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answered 2016-11-28 06:47:29 -0500

Ayush bhargava gravatar image

Hi where can I download lshw for fedora 25?

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Asked: 2014-05-16 21:47:37 -0500

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Last updated: May 17 '14