EPIC-19: LightDM greeter integration #20

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opened 2026-07-27 13:24:43 +02:00 by elegos · 0 comments

elegos commented

2026-07-27 13:24:43 +02:00

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Goal

Provide biometric authentication feedback in LightDM-based login screens.

Context

LightDM is a widely-used display manager (Linux Mint, Xubuntu, Raspberry Pi OS, and many Ubuntu-based derivatives use it with slick-greeter or gtk-greeter). PAM auth via pam_linux_hello.so (EPIC-05) works automatically; this EPIC adds the visual overlay.

Scope

Subscribe to D-Bus signals from linux-hello-daemon
Integrate with the LightDM greeter API or provide a standalone minimal greeter
Alternatively: patch slick-greeter / gtk-greeter to show the D-Bus-driven overlay
Reuse Slint overlay components from EPIC-10

Dependencies

EPIC-04 (auth daemon)
EPIC-10 (Slint auth overlay — visual component)

Out of scope

SDDM (EPIC-13), GDM (EPIC-14), greetd (EPIC-20)
LightDM session management beyond auth feedback

## Goal Provide biometric authentication feedback in LightDM-based login screens. ## Context LightDM is a widely-used display manager (Linux Mint, Xubuntu, Raspberry Pi OS, and many Ubuntu-based derivatives use it with slick-greeter or gtk-greeter). PAM auth via `pam_linux_hello.so` (EPIC-05) works automatically; this EPIC adds the visual overlay. ## Scope - Subscribe to D-Bus signals from `linux-hello-daemon` - Integrate with the LightDM greeter API or provide a standalone minimal greeter - Alternatively: patch slick-greeter / gtk-greeter to show the D-Bus-driven overlay - Reuse Slint overlay components from EPIC-10 ## Dependencies - EPIC-04 (auth daemon) - EPIC-10 (Slint auth overlay — visual component) ## Out of scope - SDDM (EPIC-13), GDM (EPIC-14), greetd (EPIC-20) - LightDM session management beyond auth feedback

elegos added the

area: ui

epic

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2026-07-27 13:41:05 +02:00

elegos added this to the Foundation project

2026-07-27 13:41:30 +02:00

elegos closed this issue

2026-07-28 12:22:50 +02:00