You have been subscribed to a public bug:
I installed Ubuntu 18.04 desktop edition on a Microsoft Surface Pro 4,
using LVM and full disk encryption. When LUKS prompts for the password,
however, the type cover keyboard does not work. I had to plug in a USB
keyboard to type in the password and boot.
However, the solution is simple. Edit the /etc/initramfs-tools/modules
file, add "hid_multitouch" to a line on its own, then run "update-
initramfs -u". Now the typecover keyboard can be used to enter the LUKS
password on boot.
The Ubuntu 18.04 desktop installer should be modified to detect if it is
running on Surface Pro hardware, and add the module, above, as needed.
** Affects: initramfs-tools (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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Surface Pro 4: Keyboard not functional during LUKS password prompt
https://bugs.launchpad.net/bugs/1772094
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seeded packages, which is subscribed to initramfs-tools in Ubuntu.
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