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nixos/lightdm: improve systemd service

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These improvements come from shopping around
at what other downstreams have done with their
systemd units and recent changes like [0] to gdm.

Note there's no requries or after on dbus.socket because
settings BusName will set this up automaticallly and
give it a type of dbus.

[0]: 2d57f45962
This commit is contained in:
worldofpeace 2019-10-05 05:45:48 -04:00
parent 7e7a155a9c
commit 67ac11e072
1 changed files with 36 additions and 0 deletions
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36
nixos/modules/services/x11/display-managers/lightdm.nix
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@ -220,6 +220,42 @@ in
exec ${lightdm}/sbin/lightdm
'';
# Replaces getty and plymouth quit since it quits plymouth on it's own.
systemd.services.display-manager.conflicts = [
"getty@tty7.service"
"plymouth-quit.service"
];
# Pull in dependencies of services we replace.
systemd.services.display-manager.after = [
"rc-local.service"
"systemd-machined.service"
"systemd-user-sessions.service"
"getty@tty7.service"
"user.slice"
];
# user.slice needs to be present
systemd.services.display-manager.requires = [
"user.slice"
];
# lightdm stops plymouth so when it fails make sure plymouth stops.
systemd.services.display-manager.onFailure = [
"plymouth-quit.service"
];
systemd.services.display-manager.serviceConfig = {
BusName = "org.freedesktop.DisplayManager";
IgnoreSIGPIPE = "no";
# This allows lightdm to pass the LUKS password through to PAM.
# login keyring is unlocked automatic when autologin is used.
KeyringMode = "shared";
KillMode = "mixed";
StandardError = "inherit";
StandardOutput = "syslog";
};
environment.etc."lightdm/lightdm.conf".source = lightdmConf;
environment.etc."lightdm/users.conf".source = usersConf;