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[JamesE <1263504@xxxxxxxxxxxxxxxxxx>]

Yes, this bug definitely occurs at 14.04.  I'm not sure if it did NOT
occur under 13.10, because I upgraded to 14.04 immediately after
installing 13.10, and didn't log back into Ubuntu in between.

I have since found this issue reported here:

https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1261818

It appears to be an "input focus" issue with the password box whereby
any keypresses with the exception of Capslock are not reflected in the
password box.  My current workaround is: If you right hand click on the
password box, then left hand click back into it, input focus is restored
and you can now enter your password.

Note that I also experience the bug inconsistently like user thotz does:
sometimes you can type your password in as normal, other times you have
to use the workaround with the mouse.

Also note that, once logged in, the keyboard works 100% OK.  User thotz
suggests it may be a bug with the lightdm for Ubuntu, I assume the
utility used for the login screen.

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https://bugs.launchpad.net/bugs/1263504

Title:
  [Toshiba Satellite P55-A5312] At login, have to click on icon to
  activate keyboard

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I've just upgraded to Ubuntu 13.10.  This morning, I couldn't type my
  password in at the login prompt.  It was as if the keyboard was not
  being recognized.  I verified that there was a prompt in the password
  box, so it's not an input focus issue.

  What's interesting is that if I hit Capslock, a capslock warning icon
  appears in the password box, so obviously the keyboard is functioning,
  but just not allowing me to type my password in.

  [Workaround] However, if I mouse click on the on-screen keyboard icon
  at the top of the screen (the icon's shaped like a little man), and
  then click back on the password box, keyboard input is recognized and
  I can finally type my password in.

  Once logged in, the keyboard works fine.

  I think this is not a keyboard driver issue, but a login screen issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.12.0-7-generic 3.12.0-7.15 [modified: boot/vmlinuz-3.12.0-7-generic]
  ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
  Uname: Linux 3.12.0-7-generic x86_64
  ApportVersion: 2.12.7-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jamesmeast   1884 F.... pulseaudio
   /dev/snd/controlC1:  jamesmeast   1884 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Dec 22 10:55:21 2013
  HibernationDevice: RESUME=UUID=24d8f789-5daa-4fd3-a941-8321de03a19c
  InstallationDate: Installed on 2013-12-21 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131218)
  MachineType: TOSHIBA Satellite P55-A
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-7-generic.efi.signed root=UUID=d94ffb61-ae33-4338-8f74-6f5f380b1bb2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-7-generic N/A
   linux-backports-modules-3.12.0-7-generic  N/A
   linux-firmware                            1.117
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/09/2013
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: 1.40
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: VG10ST
  dmi.board.vendor: TOSHIBA
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnTOSHIBA:bvr1.40:bd10/09/2013:svnTOSHIBA:pnSatelliteP55-A:pvrPSPMJU-01U02J:rvnTOSHIBA:rnVG10ST:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
  dmi.product.name: Satellite P55-A
  dmi.product.version: PSPMJU-01U02J
  dmi.sys.vendor: TOSHIBA

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