Keyboard not recognized during FDE password entry

Bug #1393080 reported by Ian Nicholson
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Confirmed
Medium
Unassigned

Bug Description

When I use the default grub boot option, my system presents me with a graphical prompt to enter my disk encryption password, but it doesn't register keypresses from my keyboard. If I use the recovery option in grub though, I'm able to enter my password.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-25-generic 3.16.0-25.33
ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
Uname: Linux 3.16.0-25-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ian 3461 F.... pulseaudio
 /dev/snd/controlC0: ian 3461 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Nov 15 15:29:28 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-02-22 (266 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140221)
MachineType: TOSHIBA Satellite L875D
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-25-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro recovery nomodeset
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-25-generic N/A
 linux-backports-modules-3.16.0-25-generic N/A
 linux-firmware 1.138
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to utopic on 2014-11-05 (10 days ago)
dmi.bios.date: 12/06/2012
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 6.30
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: PLCSC8
dmi.board.vendor: AMD
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvr6.30:bd12/06/2012:svnTOSHIBA:pnSatelliteL875D:pvrPSKFQU-003034:rvnAMD:rnPLCSC8:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: Satellite L875D
dmi.product.version: PSKFQU-003034
dmi.sys.vendor: TOSHIBA

Revision history for this message
Ian Nicholson (imnichol) wrote :
Revision history for this message
Brad Figg (brad-figg) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Changed in linux (Ubuntu):
importance: Undecided → Medium
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

Is this on a VM? It appears similar to bug 1383851

Revision history for this message
Ian Nicholson (imnichol) wrote : Re: [Bug 1393080] Re: Keyboard not recognized during FDE password entry

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On 11/17/2014 12:18 PM, Joseph Salisbury wrote:
> Is this on a VM? It appears similar to bug 1383851
>
No, it's a Toshiba Satellite laptop

- --
Ian Nicholson
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Revision history for this message
Ian Nicholson (imnichol) wrote :

I've noticed that my system is exhibiting the following behavior:
In the BIOS, the numlock light turns on, and the capslock/numlock/scrolllock indicators reflect a change in state when I toggle those keys. The keyboard also registers input. In short, everything works fine.
In GRUB, all of the above holds true as well.
Once I'm prompted for my FDE password, any numlock/scrolllock/capslock lights that are on turn off, and cannot be toggled. IF however, I toggle the numlock key after the kernel loads but before I'm prompted for the password, the password prompt will appear, but the cursor will be located in the upper left corner of the screen and my password will appear in plaintext.

Additionally, if I use the recovery mode, I can boot the kernel and I'll be prompted for the password without the graphical interface, from where I can enter it normally and then select "Normal Boot" to continue booting.

Is it possible that this is actually a bug in plymouth or something like that? Otherwise, it does seem to be related to lp://1383851

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