After Ubuntu 9.04 Update, unable to connect to wireless

[blemt]

I've seen several folks with a similar issue. After the last update of Ubuntu I was unable to access wireless.

Dell Inspiron Mini 9.

lspci

00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GME Express Memory Controller Hub [8086:27ac] (rev 03)
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GME Express Integrated Graphics Controller [8086:27ae] (rev 03)
00:02.1 Display controller [0380]: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller [8086:27a6] (rev 03)
00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 02)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 [8086:27d0] (rev 02)
00:1c.1 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 [8086:27d2] (rev 02)
00:1c.2 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 [8086:27d4] (rev 02)
00:1d.0 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 [8086:27c8] (rev 02)
00:1d.1 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 [8086:27c9] (rev 02)
00:1d.2 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 [8086:27ca] (rev 02)
00:1d.3 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 [8086:27cb] (rev 02)
00:1d.7 USB Controller [0c03]: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller [8086:27cc] (rev 02)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev e2)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge [8086:27b9] (rev 02)
00:1f.1 IDE interface [0101]: Intel Corporation 82801G (ICH7 Family) IDE Controller [8086:27df] (rev 02)
00:1f.3 SMBus [0c05]: Intel Corporation 82801G (ICH7 Family) SMBus Controller [8086:27da] (rev 02)
02:00.0 System peripheral [0880]: JMicron Technologies, Inc. Unknown device [197b:2382]
02:00.2 SD Host controller [0805]: JMicron Technologies, Inc. Unknown device [197b:2381]
02:00.3 System peripheral [0880]: JMicron Technologies, Inc. Unknown device [197b:2383]
03:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g [14e4:4315] (rev 01)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)

lsmod

Module                  Size  Used by
wl                   1487188  0 
parport_pc             36260  0 
ppdev                  10372  0 
parport                37704  2 parport_pc,ppdev
sms1xxx                42116  0 
mbm                     7424  0 
cdc_ether               7168  1 mbm
cdc_acm                18848  0 
uvcvideo               58116  0 
compat_ioctl32          2304  1 uvcvideo
videodev               29440  1 uvcvideo
v4l1_compat            15492  2 uvcvideo,videodev
v4l2_common            18304  2 uvcvideo,videodev
rfcomm                 41232  2 
l2cap                  25600  13 rfcomm
hci_usb                16540  0 
bluetooth              60772  5 rfcomm,l2cap,hci_usb
i915                   32512  3 
acpi_cpufreq           10796  1 
cpufreq_stats           7104  0 
cpufreq_conservative     8712  0 
cpufreq_powersave       2688  0 
cpufreq_userspace       5156  0 
drm                    82324  4 i915
intel_agp              25492  1 
agpgart                34760  3 drm,intel_agp
snd_seq_midi            9376  0 
snd_seq_oss            35456  0 
snd_seq_dummy           4868  0 
snd_pcm_oss            42144  0 
snd_hda_intel         368304  1 
snd_seq_midi_event      8320  2 snd_seq_midi,snd_seq_oss
snd_rawmidi            25760  1 snd_seq_midi
snd_hwdep              10500  1 snd_hda_intel
snd_pcm                78596  2 snd_pcm_oss,snd_hda_intel
snd_page_alloc         11400  2 snd_hda_intel,snd_pcm
snd_mixer_oss          17920  1 snd_pcm_oss
snd_seq                54224  6 snd_seq_midi,snd_seq_oss,snd_seq_dummy,snd_seq_midi_event
snd_timer              24836  2 snd_pcm,snd_seq
snd_seq_device          9612  5 snd_seq_midi,snd_seq_oss,snd_seq_dummy,snd_rawmidi,snd_seq
snd                    56996  13 snd_seq_oss,snd_seq_dummy,snd_pcm_oss,snd_hda_intel,snd_rawmidi,snd_hwdep,snd_pcm,snd_mixer_oss,snd_seq,snd_timer,snd_seq_device
soundcore               8800  1 snd
ieee80211_crypt_tkip    11520  0 
r8169                  34692  0 
ieee80211_crypt         6912  2 wl,ieee80211_crypt_tkip
iTCO_wdt               13092  0 
iTCO_vendor_support     4868  1 iTCO_wdt
serio_raw               7940  0 
psmouse                68200  0 
fuse                   50324  3 
ahci                   28548  0 
squashfs               49032  0 
unionfs                73168  0 
ehci_hcd               37900  0 
usbhid                 32256  0 
hid                    38912  1 usbhid
isofs                  36132  0 
zlib_inflate           18176  2 squashfs,isofs

No information returned using dmesg | grep firmware

Any help is appreciated.

[waterhead]

Try this.

Right-click the NetworkManager icon in the taskbar, and select "Edit Connections..". Click on the "Wireless" tab and delete any saved connections. Maybe reboot at this time, and then try to establish a connection. You may need to use the Edit Connections option to create a new connection.

I don't know if this will work, it's just an idea that I had.

[blemt]

Interesting.

I delete the wireless connections, then they are back again on reboot. It's also not letting me add a new wireless connection. I fill in the correct info, but never get prompted for the OK box.

[waterhead]

Try this command, it will scan for available wireless networks.

iwlist scan

[blemt]

Hmm, I did that and got

lo Interface doesn't support scanning

sms Interface doesn't support scanning

ethl Interface doesn't support scanning

eth0 Interface doesn't support scanning.

[waterhead]

Hmmm....

You say this worked before you had an update? Maybe there is a problem with NetworkManager. Try installing the Wicd connection manager using Synaptic. It will uninstall NetworkManager when Wicd is installed.

[reed9]

I know with Arch, I have to recompile the broadcom wl driver after any kernel upgrade against the new kernel.

But the module seems to be loading and I think Ubuntu includes it in the linux-restricted-modules package.

You could try removing and reinstalling the broadcom driver through the restricted drivers dialogue.