Wireless Issue after upgrade to 11.04

[goyle]

Hi, i recently upgraded to Ubuntu 11.04, but since the upgrade my wireless no longer works.

However the wireless driver (Broadcom 440x) is installed and enabled.

I don't know what to do, does anybody have an idea as to how i can fix this?

[reed9]

Please post the output of

lspci -vnn | grep -a5 -i net
lsmod
iwconfig

[goyle]

lspci -vnn | grep -a5 -i net

[virtual] Expansion ROM at c0120000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon, radeonfb

05:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)
	Subsystem: Dell Wireless 1390 WLAN Mini-Card [1028:0007]
	Flags: bus master, fast devsel, latency 0, IRQ 18
	Memory at c0200000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: b43-pci-bridge
	Kernel modules: wl, ssb

08:00.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02)
	Subsystem: Dell Device [1028:01f5]
	Flags: bus master, fast devsel, latency 64, IRQ 21
	Memory at c0300000 (32-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: b44

lsmod

Module                  Size  Used by
binfmt_misc            13213  1 
parport_pc             32111  0 
ppdev                  12849  0 
dm_crypt               22463  0 
snd_hda_codec_idt      60537  1 
snd_hda_intel          24140  4 
snd_hda_codec          90901  2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep              13274  1 snd_hda_codec
b44                    35301  0 
ssb                    45942  1 b44
snd_pcm                80244  3 snd_hda_intel,snd_hda_codec
wl                   2642531  0 
snd_seq_midi           13132  0 
joydev                 17322  0 
snd_rawmidi            25269  1 snd_seq_midi
snd_seq_midi_event     14475  1 snd_seq_midi
snd_seq                51291  2 snd_seq_midi,snd_seq_midi_event
snd_timer              28659  2 snd_pcm,snd_seq
snd_seq_device         14110  3 snd_seq_midi,snd_rawmidi,snd_seq
psmouse                73312  0 
serio_raw              12990  0 
dell_wmi               12601  0 
sparse_keymap          13666  1 dell_wmi
dell_laptop            13515  0 
snd                    55295  16 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
dcdbas                 14054  1 dell_laptop
sp5100_tco             13456  0 
soundcore              12600  1 snd
lib80211               14570  1 wl
i2c_piix4              13095  0 
shpchp                 32345  0 
snd_page_alloc         14073  2 snd_hda_intel,snd_pcm
k8temp                 12872  0 
lp                     13349  0 
parport                36746  3 parport_pc,ppdev,lp
radeon                896428  3 
ttm                    65184  1 radeon
drm_kms_helper         40745  1 radeon
drm                   180037  5 radeon,ttm,drm_kms_helper
ahci                   21591  1 
sdhci_pci              13623  0 
video                  18951  0 
sdhci                  22720  1 sdhci_pci
libahci                25548  1 ahci
i2c_algo_bit           13184  1 radeon
pata_atiixp            12968  0 
ati_agp                13202  0

iwconfig

lo        no wireless extensions.

eth0      no wireless extensions.

ham0      no wireless extensions.

[reed9]

Well, it's currently loading the wl driver, which ought to work, but clearly isn't showing a wireless interface. However, the bcm4311 should work fine with the open source b43 driver as well. This does need firmware to work.

If you have a wired connection just do

sudo apt-get install b43-fwcutter

Then unload and blacklist the wl driver

sudo modprobe -r wl
echo "blacklist wl" | sudo tee -a /etc/modprobe.conf

Load b43

sudo modprobe b43

And see if it's working.

[goyle]

I typed the above into the Terminal, here is the output:

sudo modprobe -r wl
[sudo] password for feargal: 
WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
feargal@feargal-laptop:~$ echo "blacklist wl" | sudo tee -a /etc/modprobe.conf
blacklist wl
feargal@feargal-laptop:~$ sudo modprobe b43
WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
feargal@feargal-laptop:~$

However it doesn't seem to have worked :-\

[reed9]

First of all, sorry, I made a mistake in my post above. It should have been /etc/modprobe.d/modprobe.conf above., not just /etc/modprobe.conf.

So let's get rid of that, put it in the right spot. (And change to blacklist.conf, though that doesn't effect anything other than organization.)

sudo rm /etc/modprobe.conf
echo "blacklist wl" | sudo tee -a /etc/modprobe.d/blacklist.conf

That shouldn't have been the reason for failure, though, since you removed wl and added b43. Let's take a look at the output of

dmesg | grep firmware

[goyle]

The ouput is as follows:

 Usage: dmesg [-c] [-n level] [-r] [-s bufsize]

Thanks again for the swift response

[reed9]

Something was entered in wrong.

It should be dmesg followed by the vertical dash, usually right above the enter key on the same key as the \, followed by grep firmware

[goyle]

At first i actually tried it with the vertical dash, but nothin happened, i just entered it but the the cursor skipped to the next line.

Should i be doing all this through a wired connection though? because strangely i cannot get access by using an ethernet cable, and i have tried 2 different cables :\

[reed9]

This is independent of whether you have a network connection.

If it returned nothing, then there is no string "firmware" in dmesg. Which is odd. If you're using the b43 driver and there is no firmware, it should give an error message. If there is, it should give a message that the firmware is loading.

Can you just do

dmesg > dmesg.txt

This will create a text file in your current directory with the full output (which is long). Post that output here.