This bug was fixed in the package initramfs-tools - 0.142ubuntu17
---------------
initramfs-tools (0.142ubuntu17) noble; urgency=medium
* install hid-multitouch module for Surface Pro 4 keyboard (LP: #1772094)
* test: log build_initramfs calls
-- Benjamin Drung <bdr...@ubuntu.com> Wed, 15 Nov 2023 19:16:46 +0100
** Changed in: initramfs-tools (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1772094
Title:
Surface Pro 4: Keyboard not functional during LUKS password prompt
Status in initramfs-tools package in Ubuntu:
Fix Released
Bug description:
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1772094/+subscriptions
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