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[Bug 1391496] Re: Can not enter password to decrypt disk at boot


Updating the BIOS doesn't change the behaviour described in the bug
description. It is still not possible to enter the disk encryption
passphrase at boot when running the 3.16.0-24-generic kernel. The
keyboard is function (eg ctrl-alt-del reboots the machine when the
encryption passphrase screen is displayed), but typing does not cause
any text to be entered. Booting with the previous kernel
(3.13.0-39-generic) means the passphrase can be entered as normal at

I would argue this issue has more than Low importance as it has the
potential to totally lock people out of their systems after an upgrade.

sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date:

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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  Can not enter password to decrypt disk at boot

Status in “linux” package in Ubuntu:

Bug description:
  I have upgraded from Ubuntu 14.04 to 14.10. My whole disk is encrypted
  with luks and since the upgrade I have found I can no longer unlock my
  disk at boot. The enter password screen appears, but typing does not
  cause any characters to appear in the password box. However, if I hit
  ctrl-alt f7 (not sure of the precise function key) I get a black
  screen with a flashing white cursor and I can see the password that I
  entered. This would seem to imply that this is not a problem with the
  usb drivers, as has been reported in other similar bugs. It's as if
  the focus is simply in the wrong place at the time when I need to
  enter my password. Entering the password anyway and pressing enter has
  no effect.

  By using Grub to select the previous kernel, I can then decrypt my disk and use the system as normal. The working kernel version is 3.13.0-39-generic. The problematic kernel is 3.16.0-24-generic.
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
   /dev/snd/controlC3:  mjs510     3162 F.... pulseaudio
   /dev/snd/controlC2:  mjs510     3162 F.... pulseaudio
   /dev/snd/controlC1:  mjs510     3162 F.... pulseaudio
   /dev/snd/controlC0:  mjs510     3162 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.10
  HibernationDevice: RESUME=UUID=66fe5f6c-9937-43f3-90ed-9764c8a9a263
   eth0      no wireless extensions.
   lo        no wireless extensions.
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-39-generic root=/dev/mapper/ubuntu-root ro quiet splash nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.138
  Tags:  utopic
  Uname: Linux 3.13.0-39-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2014-10-31 (11 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/14/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: SWQ6710H.86A.0049.2011.0314.1053
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DQ67SW
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG12527-308
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrSWQ6710H.86A.0049.2011.0314.1053:bd03/14/2011:svnViglen:pn:pvr:rvnIntelCorporation:rnDQ67SW:rvrAAG12527-308:cvn:ct3:cvr:
  dmi.sys.vendor: Viglen

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