plymouth doesn't support touch screens - Cannot enter full disk encryption passphrase on Lenovo Helix in tablet mode
Bug #1239004 reported by
Donn Morrison
This bug affects 4 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
plymouth (Ubuntu) |
Confirmed
|
Wishlist
|
Unassigned | ||
ubiquity (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
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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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....