[wellylug] Fwd: WiFi problem

[Jeff Hunt]

Hi all,
This is a friend of mine who has retired and so installed Ubuntu on
his own machine successfully and now is doing his wife's laptop.
He has been trying for over a week. I am out of my depth with wifi.
Can anyone help? As far as I can see the wifi is completely invisible.
He'd be grateful for an off-group personal approach. (I have his
permission to do this)

---------- Forwarded message ----------
From: Chris Francis <chris.francis at clear.net.nz>
Date: Fri, 25 Apr 2014 16:52:39 +1200
Subject: WiFi problem
To: Jeff Hunt <jeffhunt90 at gmail.com>

Hi Jeff,

I've still not managed to get WiFi going on Marian's laptop.  I wonder
if you might have any insights.

On 'Ask Ubuntu' I found a list of suggested Wifi diagnostic commands,
which I ran and then posted the resulting output (see below), but nobody
has yet told me what it all means.

Does any of it suggest a solution to you?  I note in the output from
'dmesg | grep wl' there are suggestions that things are not right (e.g.,
'wl: module verification failed') but I have no clue what I should do
about it.

Chris

$ lspci -v | grep -iA 7 network
0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN
(rev 01)
     Subsystem: Dell Wireless 1390 WLAN Mini-Card
     Flags: bus master, fast devsel, latency 0, IRQ 17
     Memory at dfdfc000 (32-bit, non-prefetchable) [size=16K]
     Capabilities: <access denied>
     Kernel driver in use: wl
     Kernel modules: wl, ssb

$ lsmod | grep wl
wl                   3028745  1
cfg80211              416271  1 wl
lib80211               14040  1 wl

$ lsmod | grep ssb
[no output from this command]

$ dmesg | grep wl
[   12.955967] wl: module license 'MIXED/Proprietary' taints kernel.
[   12.959685] wl: module verification failed: signature and/or required
key missing - tainting kernel
[   12.964701] wl driver 6.20.155.1 (r326264) failed with code 21
[   12.964748] Modules linked in: wl(POF+) snd_hwdep snd_pcm joydev
snd_seq_midi i915(+) snd_rawmidi snd_seq_midi_event snd_seq snd_timer
snd_seq_device gpio_ich drm_kms_helper drm hid_generic pcmcia psmouse
snd yenta_socket cfg80211 soundcore lpc_ich serio_raw dell_laptop
i2c_algo_bit pcmcia_rsrc snd_page_alloc irda pcmcia_core dcdbas mac_hid
lib80211 video crc_ccitt lp parport usbhid hid tg3 ptp pps_core
[   12.964870] EIP is at wdev_priv.part.7+0x3/0x5 [wl]
[   12.964982]  [<f8d568d4>] wl_cfg80211_detach+0xc4/0xd0 [wl]
[   12.965023]  [<f8d4f71f>] wl_free_if.isra.9+0x1f/0xa0 [wl]
[   12.965063]  [<f8d4ffb8>] wl_free+0x58/0x250 [wl]
[   12.965113]  [<f8c6fe92>] ? wlc_attach+0xf6c/0xfda [wl]
[   12.965148]  [<f875b51b>] wl_pci_probe+0x502/0xfe7 [wl]
[   12.965325]  [<f875b017>] wl_module_init+0x17/0x19 [wl]
[   12.965474] EIP: [<f8d56e87>] wdev_priv.part.7+0x3/0x5 [wl] SS:ESP
0068:f5027c0c

$ dmesg | grep ssb
[no output from this command]

$ sudo lshw -c network
   *-network
        description: Network controller
        product: BCM4311 802.11b/g WLAN
        vendor: Broadcom Corporation
        physical id: 0
        bus info: pci at 0000:0c:00.0
        version: 01
        width: 32 bits
        clock: 33MHz
        capabilities: pm msi pciexpress bus_master cap_list
        configuration: driver=wl latency=0
        resources: irq:17 memory:dfdfc000-dfdfffff
   *-network
        description: Ethernet interface
        product: NetXtreme BCM5752 Gigabit Ethernet PCI Express
        vendor: Broadcom Corporation
        physical id: 0
        bus info: pci at 0000:09:00.0
        logical name: eth0
        version: 02
        serial: 00:15:c5:43:e4:0d
        size: 100Mbit/s
        capacity: 1Gbit/s
        width: 64 bits
        clock: 33MHz
        capabilities: pm vpd msi pciexpress bus_master cap_list ethernet
physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
        configuration: autonegotiation=on broadcast=yes driver=tg3
driverversion=3.132 duplex=full firmware=5752-v3.19 ip=192.168.1.103
latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
        resources: irq:44 memory:dfcf0000-dfcfffff

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:15:c5:43:e4:0d
           inet addr:192.168.1.103  Bcast:192.168.1.255 Mask:255.255.255.0
           inet6 addr: fe80::215:c5ff:fe43:e40d/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:104 errors:0 dropped:0 overruns:0 frame:0
           TX packets:152 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:36522 (36.5 KB)  TX bytes:20320 (20.3 KB)
           Interrupt:18

lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:65536  Metric:1
           RX packets:42 errors:0 dropped:0 overruns:0 frame:0
           TX packets:42 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:5280 (5.2 KB)  TX bytes:5280 (5.2 KB)

$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

$ iwlist scan
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

$ nm-tool

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1]
-------------------------------------------
   Type:              Wired
   Driver:            tg3
   State:             connected
   Default:           yes
   HW Address:        00:15:C5:43:E4:0D

   Capabilities:
     Carrier Detect:  yes
     Speed:           100 Mb/s

   Wired Properties
     Carrier:         on

   IPv4 Settings:
     Address:         192.168.1.103
     Prefix:          24 (255.255.255.0)
     Gateway:         192.168.1.1

     DNS:             203.96.152.4
     DNS:             203.96.152.12

$ rfkill list all
[no output from this command]