[Bug 1386005] Re: Password not accepted graphical boot for encrypted root system

Matthew Norman mnorman.hep at gmail.com
Tue Oct 6 16:08:46 UTC 2015


Adding onto this bug because I also have the same problem while running
Ubuntu 15.04 on a Lenovo T450s.

As with the other users attempting to boot puts you into the decrypt
screen with a nice empty password box, but keyboard strokes do not
appear to register, as if the decryption password had not been selected.
The keyboard does recognize ctrl+alt+delete, which reboots into grub and
hence into the same text-based decryption window that lets you enter
your password.

This is a recent problem for me. I upgraded to 15.04 some time ago, but
the problem only really appeared within the last week, possibly due to a
dist-upgrade to linux-image-3.19.0-28 or linux-image-3.19.0-30.
Unfortunately I'm not sure which upgrade I did when, and what else came
in at the same time (I let my laptop sit a little too long without
rebooting).

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https://bugs.launchpad.net/bugs/1386005

Title:
  Password not accepted graphical boot for encrypted root system

Status in plymouth package in Ubuntu:
  Triaged

Bug description:
  After upgrading to 14.10 from 14.04, I am unable to enter my password for decypting the root filesystem.  The password is echoed in plaintext on the  graphic boot screen and does not show up in the password entry box  on the graphic.   In order to boot the system, I have to boot in recovery mode and enter the password during the text mode boot.  This problem was also described by another user in problem# 1385027.   I did not have a probem in 14.04.   I am using nvidia drivers.   I am set to resolution 1920x1200.  I am running module uvesafb with changes to /etc/default/grub for the module and resolution.  I assume this is a plymouth package bug but am not positive.
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: Unity
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-04-21 (189 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Latitude E6500
  NonfreeKernelModules: nvidia
  Package: plymouth 0.9.0-0ubuntu7
  PackageArchitecture: amd64
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-37-generic root=/dev/mapper/hogwarts_vg-root ro recovery nomodeset
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-37-generic root=/dev/mapper/hogwarts_vg-root ro recovery nomodeset
  ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
  Tags:  utopic
  TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  Uname: Linux 3.13.0-37-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2014-10-23 (4 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/06/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A27
  dmi.board.name: 0PP476
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA27:bd12/06/2011:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0PP476:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude E6500
  dmi.sys.vendor: Dell Inc.

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