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Old 04-05-2013, 08:11 PM   #1
LindleyF
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Registered: Apr 2013
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Ubuntu -- wifi stopped working


Hello, I have a Dell Vostro running Ubuntu 12.04 with a Broadcom BCM4313 wireless card. I've used linux a fair bit but I'm far from a guru.

The other day, I noticed that whenever my Ubuntu laptop was the wifi network, all the other nearby machines experienced problems. After some research, I found people saying the proprietary STA drivers could cause this problem and should be disabled.

I uninstalled the STA driver package and de-blacklisted bcma, brcmsmac, and brcmutil in /etc/modprobe.d/blacklist.conf per some instructions I found. After a reboot, my wifi worked fine again, presumably now on the open source driver. (Notably, ifconfig now called my wifi interface wlan0 instead of eth1.) I even found it a bit faster to connect.

I used the machine normally for a day or so. Then today, some bizarre message about "Precise" popped up unexpectly. I'm afraid I didn't read it thouroughly, but it said something about Precise not being supported anymore and asked if I needed technical support. Lacking context, I dismissed it. However, after a reboot, wifi is no longer showing up at all in the network manager menu.

The ethernet port on this machine was destroyed some time ago, so for the moment I'm sharing internet through bluetooth from another machine.

I'm hoping someone can help me out with this problem. I'll reinstall the STA driver if I have to, but I would prefer another solution.

Here's the output from some relevant commands...
Code:
sudo lshw -C network
  *-network               
       description: Network controller
       product: BCM4313 802.11b/g/n Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:12:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       resources: irq:17 memory:fbe00000-fbe03fff
  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:13:00.0
       logical name: eth0
       version: 06
       serial: 24:b6:fd:37:43:ff
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168e-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:45 ioport:e000(size=256) memory:d0b04000-d0b04fff memory:d0b00000-d0b03fff
  *-network
       description: Ethernet interface
       physical id: 2
       logical name: bnep0
       serial: 64:27:37:e3:b3:14
       capabilities: ethernet physical
       configuration: broadcast=yes ip=192.168.2.2 multicast=yes
Code:
lsmod
Module                  Size  Used by
ums_realtek            17920  0 
usb_storage            39646  1 ums_realtek
uas                    17828  0 
b43                   342643  0 
mac80211              436455  1 b43
cfg80211              178679  2 b43,mac80211
bcma                   25651  1 b43
ssb                    50691  1 b43
ipt_MASQUERADE         12663  1 
iptable_filter         12706  1 
iptable_nat            13016  1 
nf_nat                 24959  2 ipt_MASQUERADE,iptable_nat
nf_conntrack_ipv4      19084  3 iptable_nat,nf_nat
nf_conntrack           73847  4 ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4
nf_defrag_ipv4         12649  1 nf_conntrack_ipv4
ip_tables              18106  2 iptable_filter,iptable_nat
x_tables               21974  4 ipt_MASQUERADE,iptable_filter,iptable_nat,ip_tables
bridge                 79769  0 
stp                    12811  1 bridge
dm_crypt               22528  0 
joydev                 17393  0 
parport_pc             32114  0 
ppdev                  12849  0 
dell_wmi               12601  0 
rfcomm                 38139  16 
bnep                   17830  3 
sparse_keymap          13658  1 dell_wmi
binfmt_misc            17292  1 
dell_laptop            13671  0 
dcdbas                 14098  1 dell_laptop
snd_hda_codec_hdmi     31775  1 
snd_hda_codec_idt      60251  1 
snd_hda_intel          32765  3 
snd_hda_codec         109562  3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep              13276  1 snd_hda_codec
psmouse                87213  0 
serio_raw              13027  0 
uvcvideo               67203  0 
snd_pcm                80845  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
videodev               86588  1 uvcvideo
intel_ips              17753  0 
snd_seq_midi           13132  0 
btusb                  17912  4 
bluetooth             158438  25 rfcomm,bnep,btusb
snd_rawmidi            25424  1 snd_seq_midi
snd_seq_midi_event     14475  1 snd_seq_midi
snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
snd_timer              28931  2 snd_pcm,snd_seq
snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
snd                    62064  16 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              14635  1 snd
snd_page_alloc         14115  2 snd_hda_intel,snd_pcm
mac_hid                13077  0 
mei                    36570  0 
lp                     17455  0 
parport                40930  3 parport_pc,ppdev,lp
r8169                  56321  0 
i915                  414637  3 
drm_kms_helper         45466  1 i915
drm                   197692  4 i915,drm_kms_helper
i2c_algo_bit           13199  1 i915
video                  19068  1 i915
wmi                    18744  1 dell_wmi
Code:
sudo modprobe bcma
dmesg | grep -e bcma -e wlan -e eth
[    0.373172] i2c-core: driver [aat2870] using legacy suspend method
[    0.373174] i2c-core: driver [aat2870] using legacy resume method
[    1.657242] r8169 0000:13:00.0: eth0: RTL8168e/8111e at 0xf800e000, 24:b6:fd:37:43:ff, XID 0c200000 IRQ 45
[    1.657246] r8169 0000:13:00.0: eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[   20.205341] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   20.282427] bcma-pci-bridge 0000:12:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   20.282441] bcma-pci-bridge 0000:12:00.0: setting latency timer to 64
[   20.282511] bcma: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
[   20.282542] bcma: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
[   20.282598] bcma: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
[   20.316827] bcma: Bus registered
[   20.334709] b43: probe of bcma0:0 failed with error -95
[   21.639173] r8169 0000:13:00.0: eth0: link down
[   21.652613] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   21.653511] ADDRCONF(NETDEV_UP): eth0: link is not ready
[  638.690229] bcma-pci-bridge 0000:12:00.0: PCI INT A disabled
[  644.361609] bcma-pci-bridge 0000:12:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[  644.361629] bcma-pci-bridge 0000:12:00.0: setting latency timer to 64
[  644.361692] bcma: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0)
[  644.361720] bcma: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0)
[  644.361784] bcma: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0)
[  644.363112] bcma: Bus registered
[  644.379237] b43: probe of bcma0:0 failed with error -95
[  839.512849] bcma-pci-bridge 0000:12:00.0: PCI INT A disabled
[  840.415779] bcma-pci-bridge 0000:12:00.0: restoring config space at offset 0xf (was 0x100, writing 0x105)
[  840.415808] bcma-pci-bridge 0000:12:00.0: restoring config space at offset 0x4 (was 0x4, writing 0xfbe00004)
[  840.415815] bcma-pci-bridge 0000:12:00.0: restoring config space at offset 0x3 (was 0x0, writing 0x10)
[  840.415831] bcma-pci-bridge 0000:12:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100006)
[  840.416841] bcma-pci-bridge 0000:12:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[  845.012838] r8169 0000:13:00.0: eth0: link down
[  845.013085] ADDRCONF(NETDEV_UP): eth0: link is not ready
 
Old 04-21-2013, 02:58 AM   #2
Drakeo
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Registered: Jan 2008
Location: Urbana IL
Distribution: Slackware, Slacko,
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from your read out looks like your firmware is not loading. so do a dmesg and look for the error. then go here for a great page on that card. Read to the Bottom
 
  


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