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[ethanay <ethan.y.us@xxxxxxxxx>]

Ok, I swapped out my old Intel 3945abg card with a new intel 5300bgn
wifi card.  Reliability seems to have increased, but problem still
occurs.  See attached for dmesg output of dropout with new wifi card
installed, including two instances of "wireless disabled by hardware
switch."

It leads me to believe that the problem was at least partially
hardware...

I will test the new mainline kernel and report back...

** Attachment added: "dmesg output with recurrence after hardware swap"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1296504/+attachment/4429004/+files/dmesg.txt

** Summary changed:

- iwl3945 wireless connection becomes unreliable
+ intel wireless connection becomes unreliable

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https://bugs.launchpad.net/bugs/1296504

Title:
  intel wireless connection becomes unreliable

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  what I expect:  wireless connectivity to be reliable and consistent
  what happens instead:  wireless connection cuts out, recovers, re-establishes connection.  sometimes (rare) requires disabling / re-enabling via hardware or software switch.   sometimes (more rare) hardware fails completely until reboot (removing and re-inserting module fails -- hardware disappears to the system until reboot).  This problem will occur without a suspend / resume cycle.

  This problem appeared recently, within the last month or two months of
  kernel updates.  I think the next step in debugging would be to test
  reliability against previous kernel versions.

  some relevant dmesg:
  keyboard: can't emulate rawmode for keycode 240
  iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xffffffff, s/b 0xf802020
  iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
  iwl3945 0000:0c:00.0: MAC is in deep sleep!.  CSR_GP_CNTRL = 0xFFFFFFFF

  iwl3945 0000:0c:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
  iwl3945 0000:0c:00.0: EEPROM not found, EEPROM_GP=0xffffffff
  iwl3945 0000:0c:00.0: Unable to init EEPROM
  iwl3945 0000:0c:00.0: PCI INT A disabled
  iwl3945: probe of 0000:0c:00.0 failed with error -2

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ethan      2078 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 48'
     Mixer name	: 'Silicon Image SiI1392 HDMI'
     Components	: 'HDA:83847616,1028020a,00100201 HDA:10951392,1028020a,00100000'
     Controls      : 34
     Simple ctrls  : 20
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=b57e427a-bc21-49e6-994b-a43aee47cec0
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  MachineType: Dell Inc. XPS M1330
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-77-lowlatency-pae root=UUID=8e1188f1-2cff-41e9-8298-1d4b1983f24d ro quiet splash acpi_backlight=vendor dell_laptop.backlight=0 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-77.79-lowlatency-pae 3.2.66
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-77-lowlatency-pae N/A
   linux-backports-modules-3.2.0-77-lowlatency-pae  N/A
   linux-firmware                                   1.79.18
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  Tags:  precise running-unity
  Uname: Linux 3.2.0-77-lowlatency-pae i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo video
  dmi.bios.date: 12/26/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0N6705
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: XPS M1330
  dmi.sys.vendor: Dell Inc.

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