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vonlinuxnaut

Member

Registered: 2014-03-07

Posts: 13

Broadcom BCM4312 wireless not working after kernel update

Netctl fails when trying to connect to wifi after update (to kernel 3.18 I believe)

with journalctl -xe showing

Mar 17 19:45:16 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:45:16 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:45:16 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:07 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:07 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:07 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:52 bvh4 sudo[1310]: bvh : TTY=pts/2 ; PWD=/home/bvh ; USER=root ; COMMAND=/usr/bin/netctl start homehomewifi
Mar 17 19:46:52 bvh4 sudo[1310]: pam_unix(sudo:session): session opened for user root by (uid=0)
Mar 17 19:46:52 bvh4 systemd[1]: Starting Networking for netctl profile homehomewifi...
-- Subject: Unit netctl@homehomewifi.service has begun with start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit netctl@homehomewifi.service has begun starting up.
Mar 17 19:46:52 bvh4 network[1316]: Starting network profile 'homehomewifi'...
Mar 17 19:46:52 bvh4 kernel: ERRI foundI foundOR @wl_cfg80211_scan : WLC_SCAN error (-22)
Mar 17 19:46:59 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:59 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:46:59 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:47:09 bvh4 network[1316]: WPA association/authentication failed for interface 'wlp5s0'
Mar 17 19:47:10 bvh4 network[1316]: Failed to bring the network up for profile 'homehomewifi'
Mar 17 19:47:10 bvh4 systemd[1]: netctl@homehomewifi.service: main process exited, code=exited, status=1/FAILURE
Mar 17 19:47:10 bvh4 systemd[1]: Failed to start Networking for netctl profile homehomewifi.
-- Subject: Unit netctl@homehomewifi.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit netctl@homehomewifi.service has failed.
-- 
-- The result is failed.
Mar 17 19:47:10 bvh4 sudo[1310]: pam_unix(sudo:session): session closed for user root
Mar 17 19:47:10 bvh4 systemd[1]: Unit netctl@homehomewifi.service entered failed state.
Mar 17 19:47:10 bvh4 systemd[1]: netctl@homehomewifi.service failed.
Mar 17 19:47:50 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:47:50 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:47:50 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:48:41 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:48:41 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found
Mar 17 19:48:41 bvh4 systemd-udevd[146]: error: /dev/sdb: No medium found

(I don't know what the recurring "no medium found error is about" either)

Output of lspci -v

         ...
05:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
	Subsystem: Broadcom Corporation Device 04b5
	Flags: bus master, fast devsel, latency 0, IRQ 18
	Memory at f0400000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: wl
	Kernel modules: ssb, wl

Google turned up this thread: https://bbs.archlinux.org/viewtopic.php?id=175659

which was marked as solved but the "solution" at the bottom seemed to be just the copied and pasted command history, and I couldn't follow what the poster was doing.

When I tried to follow the steps listed for dkms I got the following

$ dkms remove broadcom-wl-dkms -v 6.30.233.248 --all
Error! There are no instances of module: broadcom-wl-dkms
6.30.233.248 located in the DKMS tree.

$ dkms add broadcom-wl-dkms -v 6.30.233.248
Error! Could not find module source directory.
Directory: /usr/src/broadcom-wl-dkms-6.30.233.248 does not exist.

$ dkms add broadcom-wl-dkms -v 6.30.233.248
Error! Could not find module source directory.
Directory: /usr/src/broadcom-wl-6.30.233.248 does not exist.

even though the following gives

$ yaourt -Q broadcom-wl-dkms
local/broadcom-wl-dkms 6.30.223.248-5

$ls /usr/src/
broadcom-wl-6.30.223.248

The card seems to be recognized however:

$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlp5s0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:24:2c:ac:a1:ea brd ff:ff:ff:ff:ff:ff
3: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 00:23:8b:fb:b8:89 brd ff:ff:ff:ff:ff:ff

Thanks for your help

ugjka

Member

From: Latvia

Registered: 2014-04-01

Posts: 1,920

Website

Re: Broadcom BCM4312 wireless not working after kernel update

b43 should work, I have the same chip and have no problems with it. See broadcom wiki page

---

https://ugjka.net

Wilco

Member

Registered: 2008-11-09

Posts: 440

Re: Broadcom BCM4312 wireless not working after kernel update

The open source driver might work or might not. For me it was extremely unreliable and slow. Use the broadcom-wl driver or b43 like ugjk suggests.The wl driver is in aur.