I am new on linux systems I have tried some of the relevant solutions, those I could follow up, But nothing yet.Please help me figuring this out.

Wireless info START

Report from: 24 Sep 2015 22:40 EDT -0400
Booted last: 24 Sep 2015 22:21 EDT -0400
Script from: 14 Jul 2015 17:04 UTC +0000

Release

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

Kernel

Linux 3.19.0-30-generic #33~14.04.1-Ubuntu SMP Tue Sep 22 09:27:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

Desktop

Ubuntu

lspci

02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20)
    Subsystem: Lenovo Device [17aa:3545]

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
    Subsystem: Lenovo Device [17aa:381e]
    Kernel driver in use: r8169

lsusb

Bus 003 Device 002: ID 8087:8001 Intel Corp. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f3:2085 Elan Microelectronics Corp. 
Bus 001 Device 003: ID 0cf3:e300 Atheros Communications, Inc. 
Bus 001 Device 002: ID 04f2:b50f Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

PCMCIA card info

rfkill

0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

lsmod

iwlwifi               188416  0 
b43                   421888  0 
bcma                   53248  1 b43
wl                   6369280  0 
mac80211              708608  1 b43
cfg80211              524288  4 wl,b43,iwlwifi,mac80211
snd_soc_rt5640         94208  0 
snd_soc_rl6231         16384  1 snd_soc_rt5640
snd_soc_core          196608  1 snd_soc_rt5640
ssb                    65536  1 b43
wmi                    20480  0 
snd_pcm               106496  8 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller,snd_pcm_dmaengine
ideapad_laptop         20480  0 
sparse_keymap          16384  1 ideapad_laptop

interfaces

auto lo
iface lo inet loopback

ifconfig

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]>  
          inet addr:192.168.1.177  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::<IP6 'eth0' [IF]>/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:48762 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29129 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:52576436 (52.5 MB)  TX bytes:5291053 (5.2 MB)

iwconfig

eth0      no wireless extensions.

lo        no wireless extensions.

route

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0

resolv.conf

nameserver 127.0.1.1
search fios-router.home

network managers Installed:

    NetworkManager

Running:

root       757     1  0 22:21 ?        00:00:00 NetworkManager

NetworkManager info

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        <MAC 'eth0' [IF]>

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.1.177
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.1.1

    DNS:             192.168.1.1

NetworkManager.statE

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

NetworkManager.conf

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

NetworkManager profiles

iw reg get

Region: America/New_York (based on set time zone)

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

eth0      no frequency information.

lo        no frequency information.

iwlist scan

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

module infos

[iwlwifi]
filename:       /lib/modules/3.19.0-30-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license:        GPL
author:         Copyright(c) 2003- 2014 Intel Corporation <ilw@linux.intel.com>
version:        in-tree:
description:    Intel(R) Wireless WiFi driver for Linux
firmware:       iwlwifi-100-5.ucode
firmware:       iwlwifi-1000-5.ucode
firmware:       iwlwifi-135-6.ucode
firmware:       iwlwifi-105-6.ucode
firmware:       iwlwifi-2030-6.ucode
firmware:       iwlwifi-2000-6.ucode
firmware:       iwlwifi-5150-2.ucode
firmware:       iwlwifi-5000-5.ucode
firmware:       iwlwifi-6000g2b-6.ucode
firmware:       iwlwifi-6000g2a-5.ucode
firmware:       iwlwifi-6050-5.ucode
firmware:       iwlwifi-6000-4.ucode
firmware:       iwlwifi-7265D-10.ucode
firmware:       iwlwifi-7265-10.ucode
firmware:       iwlwifi-3165-10.ucode
firmware:       iwlwifi-3160-10.ucode
firmware:       iwlwifi-7260-10.ucode
firmware:       iwlwifi-8000-10.ucode
srcversion:     19A5C735A79087003D53D6A
depends:        cfg80211
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
sig_hashalgo:   sha512
parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm:           amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm:           wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1) (int)
parm:           nvm_file:NVM file name (charp)
parm:           uapsd_disable:disable U-APSD functionality (default: Y) (bool)
parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm:           power_save:enable WiFi power management (default: disable) (bool)
parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
parm:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)

[b43]
filename:       /lib/modules/3.19.0-30-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:     11BDA0A580599B083FE4F2B
depends:        bcma,ssb,mac80211,cfg80211
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
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)

[bcma]
filename:       /lib/modules/3.19.0-30-generic/kernel/drivers/bcma/bcma.ko
license:        GPL
description:    Broadcom's specific AMBA driver
srcversion:     F17244FFF75F9BDF92327ED
depends:        
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
sig_hashalgo:   sha512

[wl]
filename:       /lib/modules/3.19.0-30-generic/updates/dkms/wl.ko
license:        MIXED/Proprietary
srcversion:     9A49255BA90267D99664757
depends:        cfg80211
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
parm:           passivemode:int
parm:           wl_txq_thresh:int
parm:           oneonly:int
parm:           piomode:int
parm:           instance_base:int
parm:           nompc:int
parm:           intf_name:string

[mac80211]
filename:       /lib/modules/3.19.0-30-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     6AE775D26377F997426A49D
depends:        cfg80211
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
sig_hashalgo:   sha512
parm:           minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/3.19.0-30-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     F28307769349A31F4B24FC2
depends:        
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
sig_hashalgo:   sha512
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

[ssb]
filename:       /lib/modules/3.19.0-30-generic/kernel/drivers/ssb/ssb.ko
license:        GPL
description:    Sonics Silicon Backplane driver
srcversion:     551AE4C23939F7FBED9DA61
depends:        
intree:         Y
vermagic:       3.19.0-30-generic SMP mod_unload modversions 
signer:         Magrathea: Glacier signing key
sig_key:        48:A3:57:45:53:5D:8D:6F:34:1B:30:C6:3C:3A:A3:85:78:74:3D:0D
sig_hashalgo:   sha512

module parameters

[iwlwifi]
11n_disable: 0
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
fw_monitor: N
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 0
uapsd_disable: Y
wd_disable: 1

[b43]
allhwsupport: 0
bad_frames_preempt: 0
btcoex: 1
hwpctl: 0
hwtkip: 0
nohwcrypt: 0
pio: 0
qos: 1
verbose: 2

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

/etc/modules

lp
rtc
b43
b43

modprobe options

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/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

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

rc.local

exit 0

pm-utils

udev rules

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

dmesg

[    9.576783] wl: module verification failed: signature and/or  required key missing - tainting kernel

Wireless info END

up vote 12 down vote accepted
+100

For Ubuntu 16.04 users: Do not use the dkms or backports, you just need to install firmware and set the parameter using

wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.158_all.deb
sudo dpkg -i linux-firmware_1.158_all.deb

Reboot

For Ubuntu 14.04 and 15.10 you need backports and firmware


wget https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v4.4.2/backports-4.4.2-1.tar.gz
sudo apt-get install build-essential linux-headers-generic
tar -zxvf backports-4.4.2-1.tar.gz
cd backports-4.4.2-1
make defconfig-wifi
make
sudo make install
Reboot and see if the firmware had issues with dmesg | egrep -i 'ath|firm

Edit to add:Firmware Install


wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.158_all.deb
sudo dpkg -i linux-firmware_1.158_all.deb

End of Firmware Install

If you get a new kernel, your wireless will quit working until the new kernel contains the fix, if you notice wifi isn't working after a reboot

cd backports-4.4.2-1
make clean
make defconfig-ath10k
make
sudo make install

Reboot

  • At the end I got the message that the driver should be now installed and please reboot. but after rebooting still the same thing no wifi. when I use the code 'dmesg | egrep -i 'ath|firm' it waits for ever > – Mahanmeh Sep 26 '15 at 5:29
  • The edit should fix – Jeremy31 Sep 26 '15 at 13:10
  • It is fixed now. thank you so much! – Mahanmeh Sep 28 '15 at 13:19
  • I will make an edit later today to add commands to run when a kernel update happens and wifi quits – Jeremy31 Sep 28 '15 at 14:21
  • That's great!!! What about dkms? – Pilot6 Sep 28 '15 at 21:05

Testing pre release of Ubuntu Xenial Xerus (LTS, development branch) 28.1.2016 running kernel 4.3.0-7-generic with Lenovo u31-70 laptop. Ath10k drivers support for "Qualcomm Atheros Device [168c:0041] (rev 20)" is included, but firmware is missing at the moment. Please nota that installing the debabove will not work because the module is already in the kernel

git clone https://github.com/atondwal/ath10k-firmware.git
sudo cp -r ath10k-firmware/ath10k/QCA6164 /lib/firmware/ath10k
cd /lib/firmware/ath10k/QCA6164
## Also this module option is needed
echo "options ath10k_core skip_otp=y" | sudo tee /etc/modprobe.d/ath10k_core.conf
# Reboot... or mess with module loading

protected by Community Jan 12 '16 at 18:19

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