Seatd: Difference between revisions

Latest revision as of 16:26, 16 March 2025

Seatd is a seat management daemon, that does everything it needs to do. Nothing more, nothing less. Depends only on libc. Seat management takes care of mediating access to shared devices (graphics, input), without requiring the applications needing access to be root.

When using elogind, seatd is not required and viceversa. Don't add both to auto-start.

Installation

apk add seatd # install seatd rc-update add seatd # configure it to auto-start service seatd start # start it now adduser $USER seat # allow current user to access seatd

If you are already logged in as a $USER, you will need to relogin.

Configuration

When seatd is used with Wayland, ensure that the following two mandatory steps are completed.

Set the variable XDG_RUNTIME_DIR.
The following environment variables needs to be set:

XDG_SESSION_TYPE=wayland
LIBSEAT_BACKEND=seatd
XDG_CURRENT_DESKTOP=sway

The variable XDG_CURRENT_DESKTOP must be suitably adjusted if a different Compositor is used.

Seatd and sway

When using seatd, adding the following lines to ~/.profile or other shell specific profile file will launch Sway automatically with and D-Bus only in tty1.

Contents of ~/.profile

...
#start sway with DBUS (only in tty1) 
if [ "$(tty)" = "/dev/tty1" ]; then
     exec dbus-run-session sway 
fi
...

Instead of depending on .profile or their equivalent files a wrapper script can also be used.

@@ Line 1: / Line 1: @@
-Seatd is a seat manager and provides user sessions (mostly compositors) with access to input and output devices.
+[https://man.sr.ht/~kennylevinsen/seatd/ Seatd] is a [[Seat manager|seat management]] daemon, that does everything it needs to do. Nothing more, nothing less. Depends only on libc. Seat management takes care of mediating access to shared devices (graphics, input), without requiring the applications needing access to be root.
-See [https://man.sr.ht/~kennylevinsen/seatd/ the seatd documentation] for further details.
+When using [[elogind]], seatd is not required and viceversa. Don't add both to auto-start.
-When using elogind, seatd is not required and viceversa.
+== Installation ==
-= Installation =
 {{Cmd|apk add {{Pkg|seatd}}       # install seatd
@@ Line 14: / Line 12: @@
 If you are already logged in as a <code>$USER</code>, you will need to relogin.
+== Configuration ==
+When seatd is used with [[Wayland]], ensure that the following two mandatory steps are completed.
+* Set the variable [[XDG_RUNTIME_DIR]].
+* The following environment variables needs to be set:
+ <code>XDG_SESSION_TYPE=wayland</code>
+ <code>LIBSEAT_BACKEND=seatd</code>
+ <code>XDG_CURRENT_DESKTOP=sway</code>
+The variable <code>XDG_CURRENT_DESKTOP</code> must be suitably adjusted if a different [[:Category:Compositor|Compositor]] is used.
+== Seatd and sway ==
+When using seatd, adding the following lines to {{Path|~/.profile}} or other shell specific profile file will launch Sway automatically with and [[D-Bus]] only in tty1. {{Cat|~/.profile|<nowiki>...
+#start sway with DBUS (only in tty1)
+if [ "$(tty)" = "/dev/tty1" ]; then
+     exec dbus-run-session sway
+fi
+...</nowiki>}}
+Instead of depending on {{Path|.profile}} or their equivalent files a [[Sway#Starting_sway|wrapper script]] can also be used.
+== See Also ==
+* [https://man.sr.ht/~kennylevinsen/seatd/ seatd documentation]
+* [https://github.com/swaywm/sway/wiki/Setting-environmental-variables sway wiki]
+[[Category:Desktop]]
+[[Category:Seat_manager]]
+[[Category:Wayland]]