Ok seems I misunderstood the use of the kernel backports module. so lets
ignore that! But I've discoverd what appears to be happening, although
it's beyond me why. I had Network Manager open, the "Enable Wireless"
checkbox is disabled as it believes there is no Wifi card. I also open
syslog. I flicked the hardware kill switch from the on to off position.
For a brief second the "Enable Wireless" became clickable, the syslog
reported me sending an enable to the card but then almost immediatly it
sent a kill, thereby greyout out the tickbox again and printing the kill
commands in the syslog. I did this a couple of times, the last dumping a
whole load of debuging info by the looks of it (possibly unrelated).
Hope this helps..
To clarify;
- the switch in the on position does nothing
- switch to off momentarily activates the card but immediatly kills it again
Dec 15 14:20:28 endeavour NetworkManager: <info> Wireless now enabled by radio
killswitch
Dec 15 14:20:28 endeavour NetworkManager: <info> (wlan0): bringing up device.
Dec 15 14:20:28 endeavour kernel: [17291.930773] iwl3945 0000:0c:00.0:
firmware: requesting lbm-iwlwifi-3945-2.ucode
Dec 15 14:20:28 endeavour kernel: [17292.003862] iwl3945 0000:0c:00.0: loaded
firmware version 15.32.2.9
Dec 15 14:20:28 endeavour kernel: [17292.004037] iwl3945 0000:0c:00.0: Radio
disabled by HW RF Kill switch
Dec 15 14:20:28 endeavour NetworkManager: <info> Wireless now disabled by
radio killswitch
Dec 15 14:21:15 endeavour NetworkManager: <info> Wireless now enabled by radio
killswitch
Dec 15 14:21:15 endeavour NetworkManager: <info> (wlan0): bringing up device.
Dec 15 14:21:15 endeavour kernel: [17339.328654] iwl3945 0000:0c:00.0: Radio
disabled by HW RF Kill switch
Dec 15 14:21:16 endeavour NetworkManager: <info> Wireless now disabled by
radio killswitch
Dec 15 14:21:25 endeavour NetworkManager: <info> Wireless now enabled by radio
killswitch
Dec 15 14:21:25 endeavour kernel: [17349.698805] BUG: scheduling while atomic:
swapper/0/0x10010000
Dec 15 14:21:25 endeavour kernel: [17349.698812] Modules linked in: ppdev
vboxnetflt vboxnetadp vboxdrv snd_hda_codec_idt snd_hda_intel snd_hda_codec
snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
iptable_nat nf_nat iptable_mangle arc4 xt_tcpudp snd_seq_midi snd_rawmidi
snd_seq_midi_event nf_conntrack_ipv4 ecb nf_defrag_ipv4 joydev snd_seq dell_wmi
xt_state snd_timer iwl3945 nf_conntrack nvidia(P) sdhci_pci sdhci
iptable_filter ricoh_mmc ip_tables snd_seq_device dell_laptop iwlcore uvcvideo
psmouse mac80211 snd led_class videodev soundcore v4l1_compat
v4l2_compat_ioctl32 snd_page_alloc x_tables serio_raw dcdbas lp cfg80211
parport sha256_generic aes_x86_64 aes_generic cbc dm_crypt usbhid video output
ohci1394 ieee1394 b44 ssb pcmcia pcmcia_core mii intel_agp
Dec 15 14:21:25 endeavour kernel: [17349.698924] CPU 1:
Dec 15 14:21:25 endeavour NetworkManager: <info> (wlan0): bringing up device.
Dec 15 14:21:25 endeavour kernel: [17349.698928] Modules linked in: ppdev
vboxnetflt vboxnetadp vboxdrv snd_hda_codec_idt snd_hda_intel snd_hda_codec
snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
iptable_nat nf_nat iptable_mangle arc4 xt_tcpudp snd_seq_midi snd_rawmidi
snd_seq_midi_event nf_conntrack_ipv4 ecb nf_defrag_ipv4 joydev snd_seq dell_wmi
xt_state snd_timer iwl3945 nf_conntrack nvidia(P) sdhci_pci sdhci
iptable_filter ricoh_mmc ip_tables snd_seq_device dell_laptop iwlcore uvcvideo
psmouse mac80211 snd led_class videodev soundcore v4l1_compat
v4l2_compat_ioctl32 snd_page_alloc x_tables serio_raw dcdbas lp cfg80211
parport sha256_generic aes_x86_64 aes_generic cbc dm_crypt usbhid video output
ohci1394 ieee1394 b44 ssb pcmcia pcmcia_core mii intel_agp
Dec 15 14:21:25 endeavour kernel: [17349.699381] Pid: 0, comm: swapper Tainted:
P 2.6.31-17-generic #54-Ubuntu Inspiron 1520
Dec 15 14:21:25 endeavour kernel: [17349.699387] RIP: 0010:[<ffffffff812d850d>]
[<ffffffff812d850d>] acpi_idle_enter_bm+0x28b/0x2bf
Dec 15 14:21:25 endeavour kernel: [17349.699402] RSP: 0018:ffff88010ba91e98
EFLAGS: 00000283
Dec 15 14:21:25 endeavour kernel: [17349.699407] RAX: 00000000000103f0 RBX:
ffff88010ba91ee8 RCX: 0000000000000000
Dec 15 14:21:25 endeavour kernel: [17349.699412] RDX: ffff88002803b000 RSI:
00000fc78aa178e2 RDI: ffff880028051240
Dec 15 14:21:25 endeavour kernel: [17349.699417] RBP: ffffffff81012a0e R08:
ffffffffff623dd9 R09: ffff8800d700da18
Dec 15 14:21:25 endeavour kernel: [17349.699421] R10: 0000000000000000 R11:
0000000000000000 R12: 00000000002ffee2
Dec 15 14:21:25 endeavour kernel: [17349.699426] R13: ffff88010ba91e38 R14:
ffffffff81082137 R15: ffff88010ba91e08
Dec 15 14:21:25 endeavour kernel: [17349.699432] FS: 0000000000000000(0000)
GS:ffff88002803b000(0000) knlGS:0000000000000000
Dec 15 14:21:25 endeavour kernel: [17349.699438] CS: 0010 DS: 0018 ES: 0018
CR0: 000000008005003b
Dec 15 14:21:25 endeavour kernel: [17349.699442] CR2: 0000000001a44000 CR3:
0000000001001000 CR4: 00000000000006e0
Dec 15 14:21:25 endeavour kernel: [17349.699447] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Dec 15 14:21:25 endeavour kernel: [17349.699452] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Dec 15 14:21:25 endeavour kernel: [17349.699456] Call Trace:
Dec 15 14:21:25 endeavour kernel: [17349.699464] [<ffffffff812d8506>] ?
acpi_idle_enter_bm+0x284/0x2bf
Dec 15 14:21:25 endeavour kernel: [17349.699473] [<ffffffff813fea9b>] ?
cpuidle_idle_call+0x9b/0x100
Dec 15 14:21:25 endeavour kernel: [17349.699483] [<ffffffff81010e12>] ?
cpu_idle+0xb2/0x100
Dec 15 14:21:25 endeavour kernel: [17349.699491] [<ffffffff81524236>] ?
start_secondary+0xa9/0xab
Dec 15 14:21:25 endeavour kernel: [17349.702767] iwl3945 0000:0c:00.0: Radio
disabled by HW RF Kill switch
Dec 15 14:21:26 endeavour NetworkManager: <info> Wireless now disabled by
radio killswitch
--
Karmic Upgrade Networkmanager No Longer Has Wireless
https://bugs.launchpad.net/bugs/482721
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