Hello everyone.
I have try many display-manager in guix: gdm, sddm, slim and lightdm,
and finally find lightdm is very comfortable to use after it fix session
menu dispear problem in gux:
1. it start very fast.
2. lightdm-gtk-greeter can change font, background easy.
3. it can support other greeters.
I have send the below patches, please review them if someone have time,
thanks,
1. Add lightdm-greeter-general-configuration and simplify code
https://issues.guix.gnu.org/75048
with this configuration, user can use other greeter, for example:
slick-greeter, lightdm-mini-greeter, lightdm-tiny-greeter or
lightdm-pantheon-greeter easily.
2. Add slick-greeter
https://issues.guix.gnu.org/75043
3. Add lightdm-tiny-greeter
https://issues.guix.gnu.org/75417
4. Add lightdm-pantheon-greeter
https://issues.guix.gnu.org/75186
For I use xfce4, so I just package some greeter using gtk, and do not
package greeter using qt, if someone interesting, can try :-)
the below is lightdm configuration to test:
```
(service lightdm-service-type
(lightdm-configuration
(greeters
(list (lightdm-greeter-general-configuration
(greeter-package slick-greeter)
(greeter-session-name "slick-greeter")
(greeter-config-name "slick-greeter.conf")
(config (list "[Greeter]"
"font-name = San 12"
"background =
/run/current-system/profile/share/backgrounds/guix/guix-checkered-16-9.svg")))
(lightdm-greeter-general-configuration
(greeter-package lightdm-mini-greeter)
(greeter-session-name "lightdm-mini-greeter")
(greeter-config-name "lightdm-mini-greeter.conf")
(config (list "[greeter]"
"user = guest"
"[greeter-hotkeys]"
"mod-key = control"
"session-key = e")))
(lightdm-greeter-general-configuration
(greeter-package (customize-lightdm-tiny-greeter
#:session "icewm"))
(greeter-session-name "lightdm-tiny-greeter")
(greeter-config-name "lightdm-tiny-greeter.conf")
(config (list "## Lightdm-mini-greeter have no config,
ignore it!")))
(lightdm-greeter-general-configuration)
(lightdm-gtk-greeter-configuration
(lightdm-gtk-greeter lightdm-gtk-greeter-gee)
(extra-config
(list "font-name = San 10"
"icon-size = 64"
"xft-dpi = 140"
"clock-format = %Y-%m-%d %H:%M"
;; We need to use "~~" to generate a tilde, for
;; extra-config sting will be handle as
;; control-string of format function.
"indicators =
~~host;~~spacer;~~session;~~a11y;~~clock;~~power")))))
(seats
(list (lightdm-seat-configuration
(name "*")
(greeter-session 'lightdm-tiny-greeter))))
(xorg-configuration
(xorg-configuration
;; The QXL virtual GPU driver is added to provide a better
;; SPICE experience.
(modules (cons xf86-video-qxl
%default-xorg-modules))
(keyboard-layout keyboard-layout)
(server-arguments
(append %default-xorg-server-arguments
'("-dpi" "140")))))))
```
--
