Broadcom BCM4311

[4dr14n]

Good morning all,

I have a problem I don't know hot to resolve, even if I was reading some other post relating similar cases.
When I updated my old laptop from Lubuntu 13.10 to 14.04 it, suddenly, stopped recognising new wifis, it could connect to known ones but no to new ones... but you tried it, it didn't connect nor a message appear (it just happened nothing). It allowed me to work at home so I could live with it.
But now, after something I did, it doesn't connect to any wifi, so I must use a wire to use internet.

I don't know what I should do.
I have the linux-firmware-nonfree on the latest version.


Thank you so much for the help.

[kc1di]

Could you go to a terminal and post the outputs of these commands

lspci

lsmod

[4dr14n]

Here we go:

adrian@adrian-Latitude-D531:~$ lspci00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD/ATI] RS690 Host Bridge
00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RS690 PCI to PCI Bridge (Internal gfx)
00:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RS690 PCI to PCI Bridge (PCI Express Port 1)
00:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RS690 PCI to PCI Bridge (PCI Express Port 2)
00:12.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 Non-Raid-5 SATA
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI0)
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI1)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI2)
00:13.3 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI3)
00:13.4 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI4)
00:13.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB Controller (EHCI)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB600 IDE
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB600 PCI to LPC Bridge
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS690M [Radeon Xpress 1200/1250/1270]
03:01.0 CardBus bridge: O2 Micro, Inc. Cardbus bridge (rev 21)
03:01.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755M Gigabit Ethernet PCI Express (rev 02)
0b:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)


adrian@adrian-Latitude-D531:~$ lsmod
Module Size Used by
nls_iso8859_1 12617 1
usb_storage 48417 1
hid_generic 12492 0
usbhid 46997 0
hid 87604 2 hid_generic,usbhid
zram 18032 2
snd_hda_codec_idt 48877 1
joydev 17101 0
snd_hda_intel 42730 5
snd_hda_codec 164067 2 snd_hda_codec_idt,snd_hda_intel
dell_wmi 12665 0
sparse_keymap 13708 1 dell_wmi
arc4 12536 2
b43 356470 0
snd_hwdep 13272 1 snd_hda_codec
snd_pcm 85501 3 snd_hda_codec,snd_hda_intel
bcma 42043 1 b43
dell_laptop 17808 0
dcdbas 14448 1 dell_laptop
snd_page_alloc 14230 2 snd_pcm,snd_hda_intel
mac80211 546051 1 b43
snd_seq_midi 13132 0
snd_seq_midi_event 14475 1 snd_seq_midi
snd_rawmidi 25135 1 snd_seq_midi
cfg80211 409394 2 b43,mac80211
snd_seq 55383 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 14137 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 28584 2 snd_pcm,snd_seq
kvm_amd 50537 0
kvm 388083 1 kvm_amd
radeon 1420526 3
pcmcia 51828 0
snd 60871 19 snd_hwdep,snd_timer,snd_hda_codec_idt,snd_pcm,snd_ seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_se q_device,snd_seq_midi
ttm 72698 1 radeon
rfcomm 53664 8
yenta_socket 40201 0
bnep 18895 2
btusb 27580 0
psmouse 91329 0
bluetooth 342206 22 bnep,btusb,rfcomm
pcmcia_rsrc 18319 1 yenta_socket
serio_raw 13230 0
drm_kms_helper 47182 1 radeon
pcmcia_core 22328 3 pcmcia,pcmcia_rsrc,yenta_socket
sp5100_tco 13643 0
k8temp 12842 0
soundcore 12600 1 snd
i2c_piix4 17723 0
ssb_hcd 12749 0
drm 244037 5 ttm,drm_kms_helper,radeon
i2c_algo_bit 13197 1 radeon
wmi 18673 1 dell_wmi
mac_hid 13037 0
shpchp 32128 0
ati_agp 13177 0
binfmt_misc 13140 1
video 18903 0
parport_pc 31981 0
ppdev 17391 0
lp 13299 0
parport 40836 3 lp,ppdev,parport_pc
pata_acpi 12886 0
ahci 25579 2
firewire_ohci 35529 0
firewire_core 61867 1 firewire_ohci
crc_itu_t 12627 1 firewire_core
libahci 27082 1 ahci
pata_atiixp 13058 0
tg3 152132 0
ptp 18445 1 tg3
pps_core 18799 1 ptp
ssb 51854 2 b43,ssb_hcd
adrian@adrian-Latitude-D531:~$

[kc1di]

you are loading the correct driver for that card. so not sure what the issue may be.
you might want to try reinstalling the driver.
you should purge the old one first.

sudo apt-get purge b43

then you'll need a ethernet connection to reinstall the dirver - use the additional driver tool.
Good luck

Additional : check software center see if any of the following are installed

b43-fwcutter firmware-b43-installer firmware-b43legacy-installer

if they are or any are remove them and reinstall.

[kd5mkv]

This something similar to a problem I had with BCM4306, I tried all the driver supprt and the wireless adaptor on my work machine would not work. I had to install 10.04 and keep previous driver support and use 3.2 kernel on 12.04.4.
It appears Ubuntu doesn't support BCM43xx drivers or there omitted from the kernel. The latest kernel didn't like the wireless card and it would crash on every startup until I reverted to older setup.