[Bug 1239004] Re: plymouth doesn't support touch screens - Cannot enter full disk encryption passphrase on Lenovo Helix in tablet mode

[Dmitrijs Ledkovs]

One alternative is to only encrypt user-home directory, then your
personal files are protected and will be decrypted upon login from
lightdm, which does support touch screens.

Ideally plymouth would support touch-screen input.

Or we somehow include touch screen support into initramfs and/or alternative input methods.
E.g. using hardware keys that are present, e.g. "volume up/down".

Or create a small unencrypted install that lets you unlock/mount
encrypted root and chroot into that....

** Summary changed:

- Cannot enter full disk encryption passphrase on Lenovo Helix in tablet mode
+ plymouth doesn't support touch screens - Cannot enter full disk encryption passphrase on Lenovo Helix in tablet mode

** Also affects: plymouth (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

** Changed in: plymouth (Ubuntu)
       Status: New => Confirmed

** Changed in: plymouth (Ubuntu)
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/1239004

Title:
  plymouth doesn't support touch screens - Cannot enter full disk
  encryption passphrase on Lenovo Helix in tablet mode

Status in “plymouth” package in Ubuntu:
  Confirmed
Status in “ubiquity” package in Ubuntu:
  Invalid

Bug description:
  Fresh install of 13.10, selected full disk encryption.

  The Lenovo Helix turns into a tablet by detaching from the keyboard.
  If the system is rebooted while you are away from the keyboard (e.g.,
  you leave it at home) you cannot enter the passphrase. I suspect this
  is or will become a problem for other tablets. I could not find any
  information about a workaround through searching except for storing a
  key on a USB stick and modifying initrd to read this at boot.

  Obviously implementing an onscreen keyboard for the console at boot
  seems a bit far fetched. Is there any idea for a workaround?

  Description:    Ubuntu Saucy Salamander (development branch)
  Release:    13.10

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