I am using a compaq presario cq43 laptop. Initially I installed Ubuntu 12.04 and was using a broadcom wireless sta driver(BC4313) for Wi-Fi. It was working well, then after three years I installed Ubuntu 14.04. I'm having trouble with wifi now.
It only connects sometimes. After going through the Ubuntu forum discussions, I found a remedy.
Step 1:
- Go to additional driver under software update
- Select proprietary driver for broadcom
- If not selected and click
- apply changes
Step 2:
sudo apt-get purge bcmwl-kernel-sourcesudo apt-get install linux-firmware-nonfree
Step 3:
Now the issue is every time I restart my laptop I have to run the above steps and after rebooting the Wi-Fi works fine.
I have updated all the headers and software through software updater using LAN connection.
########## wireless info START ##########
Report from: 11 Aug 2014 15:33 IST +0530
Script from: 04 Aug 2014 18:47 UTC +0000
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC 2014 i686 athlon i686 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop #####
Ubuntu
##### lspci #####
06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:3577]
Kernel driver in use: r8169
07:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:1795]
Kernel driver in use: bcma-pci-bridge
##### lsusb #####
Bus 002 Device 002: ID 058f:a001 Alcor Micro Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA Card Info #####
##### rfkill #####
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: yes
2: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
##### lsmod #####
hp_wmi 13702 0
sparse_keymap 13708 1 hp_wmi
wmi 18673 1 hp_wmi
b43 356470 0
ssb 51854 1 b43
brcmsmac 529837 0
cordic 12518 1 brcmsmac
brcmutil 15066 1 brcmsmac
bcma 42043 3 b43,brcmsmac
mac80211 546051 2 b43,brcmsmac
cfg80211 409394 3 b43,brcmsmac,mac80211
##### interfaces #####
auto lo
iface lo inet loopback
##### ifconfig #####
eth0 Link encap:Ethernet HWaddr
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::461e:a1ff:fec5:b875/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:231 errors:0 dropped:0 overruns:0 frame:0
TX packets:364 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:136089 (136.0 KB) TX bytes:47961 (47.9 KB)
##### iwconfig #####
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
##### resolv.conf #####
nameserver 127.0.1.1
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: brcmsmac
State: unavailable
Default: no
HW Address:
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
- Device: eth0 [Wired connection 1] -------------------------------------------
Type: Wired
Driver: r8169
State: connected
Default: yes
HW Address:
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.0.100
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### iw reg get #####
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### iwlist channels #####
lo no frequency information.
eth0 no frequency information.
wlan0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
##### iwlist scan #####
wlan0 Interface doesn't support scanning : Network is down
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
##### module infos #####
[b43]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/b43/b43.ko
firmware: b43/ucode9.fw
firmware: b43/ucode5.fw
firmware: b43/ucode16_mimo.fw
firmware: b43/ucode15.fw
firmware: b43/ucode14.fw
firmware: b43/ucode13.fw
firmware: b43/ucode11.fw
license: GPL
author: Rafał Miłecki
author: Gábor Stefanik
author: Michael Buesch
author: Stefano Brivio
author: Martin Langer
description: Broadcom B43 wireless driver
srcversion: 42BAE2DB9BADE3E7ECA2CC0
alias: bcma:m04BFid0812rev1Dcl*
alias: bcma:m04BFid0812rev18cl*
alias: bcma:m04BFid0812rev17cl*
alias: bcma:m04BFid0812rev11cl*
alias: ssb:v4243id0812rev10*
alias: ssb:v4243id0812rev0F*
alias: ssb:v4243id0812rev0D*
alias: ssb:v4243id0812rev0C*
alias: ssb:v4243id0812rev0B*
alias: ssb:v4243id0812rev0A*
alias: ssb:v4243id0812rev09*
alias: ssb:v4243id0812rev07*
alias: ssb:v4243id0812rev06*
alias: ssb:v4243id0812rev05*
depends: bcma,ssb,mac80211,cfg80211
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A7:FC:65:90:FC:4A:8D:85:9A:AE:BD:A2:CA:5D:D0:47:16:24:4F:A0
sig_hashalgo: sha512
parm: bad_frames_preempt:enable(1) / disable(0) Bad Frames Preemption (int)
parm: fwpostfix:Postfix for the .fw files to load. (string)
parm: hwpctl:Enable hardware-side power control (default off) (int)
parm: nohwcrypt:Disable hardware encryption. (int)
parm: hwtkip:Enable hardware tkip. (int)
parm: qos:Enable QOS support (default on) (int)
parm: btcoex:Enable Bluetooth coexistence (default on) (int)
parm: verbose:Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug (int)
parm: pio:Use PIO accesses by default: 0=DMA, 1=PIO (int)
parm: allhwsupport:Enable support for all hardware (even it if overlaps with the brcmsmac driver) (int)
[ssb]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/ssb/ssb.ko
license: GPL
description: Sonics Silicon Backplane driver
srcversion: 3DE188310F77C566C2E8CB3
alias: pci:v000014E4d00004350sv*sd*bc*sc*i*
alias: pci:v000014E4d0000432Csv*sd*bc*sc*i*
alias: pci:v000014E4d0000432Bsv*sd*bc*sc*i*
alias: pci:v000014E4d00004329sv*sd*bc*sc*i*
alias: pci:v000014E4d00004328sv*sd*bc*sc*i*
alias: pci:v000014E4d00004325sv*sd*bc*sc*i*
alias: pci:v000014E4d00004324sv*sd*bc*sc*i*
alias: pci:v000014E4d0000A8D6sv*sd*bc*sc*i*
alias: pci:v000014E4d00004322sv*sd*bc*sc*i*
alias: pci:v000014E4d00004321sv*sd*bc*sc*i*
alias: pci:v000014E4d00004320sv*sd*bc*sc*i*
alias: pci:v000014E4d00004319sv*sd*bc*sc*i*
alias: pci:v000014A4d00004318sv*sd*bc*sc*i*
alias: pci:v000014E4d00004318sv*sd*bc*sc*i*
alias: pci:v000014E4d00004315sv*sd*bc*sc*i*
alias: pci:v000014E4d00004312sv*sd*bc*sc*i*
alias: pci:v000014E4d00004311sv*sd*bc*sc*i*
alias: pci:v000014E4d00004307sv*sd*bc*sc*i*
alias: pci:v000014E4d00004306sv*sd*bc*sc*i*
alias: pci:v000014E4d00004301sv*sd*bc*sc*i*
depends:
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A7:FC:65:90:FC:4A:8D:85:9A:AE:BD:A2:CA:5D:D0:47:16:24:4F:A0
sig_hashalgo: sha512
[brcmsmac]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/brcm80211/brcmsmac/brcmsmac.ko
firmware: brcm/bcm43xx_hdr-0.fw
firmware: brcm/bcm43xx-0.fw
license: Dual BSD/GPL
description: Broadcom 802.11n wireless LAN driver.
author: Broadcom Corporation
srcversion: 43D6897F7EB716081DF69BE
alias: bcma:m04BFid0812rev18cl*
alias: bcma:m04BFid0812rev17cl*
alias: bcma:m04BFid0812rev11cl*
depends: bcma,mac80211,brcmutil,cfg80211,cordic
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A7:FC:65:90:FC:4A:8D:85:9A:AE:BD:A2:CA:5D:D0:47:16:24:4F:A0
sig_hashalgo: sha512
[brcmutil]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/brcm80211/brcmutil/brcmutil.ko
license: Dual BSD/GPL
description: Broadcom 802.11n wireless LAN driver utilities.
author: Broadcom Corporation
srcversion: E81EE4CBB6A7A689150D93D
depends:
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A7:FC:65:90:FC:4A:8D:85:9A:AE:BD:A2:CA:5D:D0:47:16:24:4F:A0
sig_hashalgo: sha512
[bcma]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/bcma/bcma.ko
license: GPL
description: Broadcom's specific AMBA driver
srcversion: E41B811D88783DD5BC38565
alias: pci:v000014E4d00004727sv*sd*bc*sc*i*
alias: pci:v000014E4d00004365sv*sd*bc*sc*i*
alias: pci:v000014E4d00004359sv*sd*bc*sc*i*
alias: pci:v000014E4d00004358sv*sd*bc*sc*i*
alias: pci:v000014E4d00004357sv*sd*bc*sc*i*
alias: pci:v000014E4d00004353sv*sd*bc*sc*i*
alias: pci:v000014E4d00004331sv*sd*bc*sc*i*
alias: pci:v000014E4d0000A8D8sv*sd*bc*sc*i*
alias: pci:v000014E4d00004313sv*sd*bc*sc*i*
alias: pci:v000014E4d00000576sv*sd*bc*sc*i*
depends:
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A7:FC:65:90:FC:4A:8D:85:9A:AE:BD:A2:CA:5D:D0:47:16:24:4F:A0
sig_hashalgo: sha512
##### module parameters #####
[b43]
allhwsupport: 0
bad_frames_preempt: 0
btcoex: 1
hwpctl: 0
hwtkip: 0
nohwcrypt: 0
pio: 0
qos: 1
verbose: 2
##### /etc/modules #####
lp
brcmsmac
brcmsmac
brcmsmac
brcmsmac
b43
b43
##### blacklists #####
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
blacklist b43
blacklist wl
blacklist b43
blacklist wl
blacklist b43
blacklist wl
blacklist b43
blacklist wl
blacklist b43
blacklist wl
##### udev rules #####
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x14e4:0x4727 (brcmsmac)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #####
[ 14.492780] bcma: bus0: Found chip with id 0x4313, rev 0x01 and package 0x08
[ 14.492818] bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
[ 14.492843] bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
[ 14.492889] bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
[ 14.505581] bcma: bus0: Bus registered
[ 14.617110] brcmsmac bcma0:0: mfg 4bf core 812 rev 24 class 0 irq 23
[ 14.838616] ieee80211 phy0: registered radio enabled led device: brcmsmac-phy0:radio gpio: 243
[ 15.165326] type=1400 audit(1407751129.533:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=350 comm="apparmor_parser"
[ 15.175540] type=1400 audit(1407751129.545:5): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=350 comm="apparmor_parser"
[ 19.718493] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 131.249919] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos enabled: false (implement)
[ 131.249989] brcmsmac bcma0:0: brcms_ops_config: change power-save mode: false (implement)
[ 131.250768] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 131.737890] usb 4-2: Direct firmware load failed with error -2
[ 131.739884] Bluetooth: can't load firmware, may not work correctly
[ 133.207205] wlan0: authenticate with
[ 133.210575] wlan0: send auth to (try 1/3)
[ 133.238251] wlan0: send auth to (try 2/3)
[ 133.333829] wlan0: send auth to (try 3/3)
[ 133.432728] wlan0: authentication with timed out
########## wireless info END ############
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