Thread: Wireless adapter not working after 10.4 upgrade

hi. upgraded ubuntu 10.4 on dell inspiron 6400 yesterday (32-bit). running great, when turned on today wireless adapter no longer working , hardware switch doesn't anything. it's working in windows fine can't hardware.

here information:

adapater name: intel corporation pro/wireless 3945abg [golan] network connection (rev 02)

code:

iwconfig: wlan0     ieee 802.11abg  essid:off/any             mode:managed  access point: not-associated   tx-power=0 dbm              retry  long limit:7   rts thr:off   fragment thr:off           power management:off

code:

james@james-ubuntu:~$ lsmod module                  size  used binfmt_misc             6587  1  ppdev                   5259  0  fbcon                  35102  71  tileblit                2031  1 fbcon font                    7557  1 fbcon bitblit                 4707  1 fbcon softcursor              1189  1 bitblit vga16fb                11385  0  vgastate                8961  1 vga16fb joydev                  8708  0  snd_hda_codec_idt      51978  1  snd_hda_intel          21941  2  arc4                    1153  2  snd_hda_codec          74201  2 snd_hda_codec_idt,snd_hda_intel snd_hwdep               5412  1 snd_hda_codec snd_pcm_oss            35308  0  snd_mixer_oss          13746  1 snd_pcm_oss snd_pcm                70662  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss snd_seq_dummy           1338  0  snd_seq_oss            26726  0  snd_seq_midi            4557  0  snd_rawmidi            19056  1 snd_seq_midi snd_seq_midi_event      6003  2 snd_seq_oss,snd_seq_midi snd_seq                47263  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_timer              19098  2 snd_pcm,snd_seq radeon                674824  3  iwl3945                68727  0  snd_seq_device          5700  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq ttm                    49943  1 radeon dell_wmi                1793  0  iwlcore               105922  1 iwl3945 drm_kms_helper         29297  1 radeon snd                    54148  16 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device dell_laptop             6856  0  mac80211              205146  2 iwl3945,iwlcore drm                   162377  5 radeon,ttm,drm_kms_helper sdhci_pci               5470  0  sdhci                  15462  1 sdhci_pci led_class               2864  3 iwl3945,iwlcore,sdhci dcdbas                  5422  1 dell_laptop intel_agp              24119  0  psmouse                63245  0  serio_raw               3978  0  video                  17375  0  output                  1871  1 video cfg80211              126517  3 iwl3945,iwlcore,mac80211 i2c_algo_bit            5028  1 radeon soundcore               6620  1 snd snd_page_alloc          7076  2 snd_hda_intel,snd_pcm agpgart                31724  3 ttm,drm,intel_agp lp                      7028  0  parport                32635  2 ppdev,lp ohci1394               26950  0  usb_storage            39425  0  b44                    25574  0  ieee1394               81181  1 ohci1394 ssb                    38671  1 b44 mii                     4381  1 b44

code:

james@james-ubuntu:~$ dmesg | grep "iwl3945" [   21.662926] iwl3945: intel(r) pro/wireless 3945abg/bg network connection driver linux, 1.2.26ks [   21.662931] iwl3945: copyright(c) 2003-2009 intel corporation [   21.663068] iwl3945 0000:0b:00.0: pci int -> gsi 16 (level, low) -> irq 16 [   21.663083] iwl3945 0000:0b:00.0: setting latency timer 64 [   21.741280] iwl3945 0000:0b:00.0: tunable channels: 13 802.11bg, 23 802.11a channels [   21.741284] iwl3945 0000:0b:00.0: detected intel wireless wifi link 3945abg [   21.741437] iwl3945 0000:0b:00.0: irq 28 msi/msi-x

here says it's disabled:

code:

james@james-ubuntu:~$ sudo lshw -c network [sudo] password james:    *-network disabled              description: wireless interface        product: pro/wireless 3945abg [golan] network connection        vendor: intel corporation        physical id: 0        bus info: pci@0000:0b:00.0        logical name: wlan0        version: 02        serial: 00:13:02:ca:95:e5        width: 32 bits        clock: 33mhz        capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless        configuration: broadcast=yes driver=iwl3945 latency=0 multicast=yes wireless=ieee 802.11abg        resources: irq:28 memory:efcff000-efcfffff   *-network disabled        description: ethernet interface        product: bcm4401-b0 100base-tx        vendor: broadcom corporation        physical id: 0        bus info: pci@0000:03:00.0        logical name: eth0        version: 02        serial: 00:15:c5:ae:fc:e4        capacity: 100mb/s        width: 32 bits        clock: 33mhz        capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation        configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 latency=64 link=no multicast=yes port=twisted pair        resources: irq:17 memory:ef9fe000-ef9fffff

code:

james@james-ubuntu:~$ iwlist scan wlan0 wlan0     failed read scan data : network down

code:

kernel: 2.6.32-24-generic i686

restarting network 'sudo /etc/init.d/networking restart' didn't work.

if me grateful. i've tried ubuntu several times before there 1 small issue makes me go windows. love 10.4 hope can working can stay on ubuntu!

thanks,
james

found solution, i'm posting solution here in case else has same problem.

it's caused laptop not going sleep properly. fix it, make sure values in following 2 files set true:

/etc/networkmanager/nm-system-settings.conf

code:

[main]  plugins=ifupdown,keyfile    [ifupdown]  managed=true

/var/lib/networkmanager/networkmanager.state

code:

[main]  networkingenabled=true  wirelessenabled=true  wwanenabled=true

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Networking & Wireless [SOLVED] Wireless adapter not working after 10.4 upgrade

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