Install Display Managers

Revision as of 21:09, 21 May 2019 by imported>Dalto (Bring gdm section up-to-date)

Overview

Tip
if you are only using one desktop environment, then why not choose the appropriate display manager to go with it?


Display Managers are used to provide login screens, and therefore serve as protective security barriers to prevent unauthorised access to your system. They are also referred to as Login Managers. As with different desktop environments, different display managers will require different system resources to run, and will provide their own unique styles, interfaces, and features. Commonly shared features - particularly in respect to the selection of display managers listed below - include customisation/theming, automatic login, and the selection of multiple desktop environments.


Note
If using Plymouth, please be sure to read the section on Plymouth before following the below instructions


GDM

GDM - the Gnome Display Manager - is designed for use with Gnome 3. It supports theming, automatic login, and the automatic detection and use of multiple desktop environments. Specifically for those using Gnome 3. GDM is typically only paired with a Gnome Desktop Environment because GDM depends on a large amount of the Gnome desktop as dependencies.

GDM can be installed by entering the following command:

pamac install gdm

To enable GDM as your default display manager use the command:

systemctl enable gdm.service --force

To install the Manjaro specific theming for GDM you can use the command:

pamac install manjaro-gdm-theme


LXDM


LXDM - the Lightweight X-Windows Display Manager - is designed for use with any desktop environment. It supports theming, automatic login, easy selection of multiple languages, and the automatic detection and use of multiple desktop environments.

To install LXDM, enter the command:

sudo pacman -S lxdm



To enable LXDM in Manjaro 0.8.2 or later (or if Plymouth has been removed), enter the command:

sudo systemctl enable lxdm.service -f

To enable LXDM in Manjaro 0.8.1 or earlier (or if Plymouth has been added), enter the command:

sudo systemctl enable lxdm-plymouth.service -f


SDDM


SDDM is a relatively new and lightweight QML-based Display Manager for use with any desktop environment. It supports theming, automatic login, and the automatic detection and use of multiple desktop environments.

To install SDDM, enter the command:

sudo pacman -S sddm



To enable SDDM in Manjaro 0.8.2 or later (or if Plymouth has been removed), enter the command:

sudo systemctl enable sddm.service -f


LightDM

Note
LightDM need some configuring to make it Correct but with the right Steps it Works


LigtDM is a light displaymanager without depencies of gnome. With the right greeter it works but need some manual intervention to do it, here some steps.

sudo pacman -S lightdm lightdm-another-gtk-greeter lightdm-another-gtk-greeter-themes accountsservice


First configure the Greeter in /etc/lightdm/lightdm.conf:

sudo nano /etc/lightdm/lightdm.conf
[SeatDefaults]
# This sets the lightDM-another-greeter:
greeter-session=lightdm-another-gtk-greeter
# Depends on Desktop it Sets to your standard desktop:
user-session=xfce

LightDM.conf is configured. Now we have to configure the greeter. This a few lines you have to search mostly there you see "#" before it.

  sudo nano /etc/lightdm/lightdm-another-gtk-greeter.conf
  [appearance]
  # Greeter theme. Themes are located in “themes” directory (“/usr/share/lightdm-$"):
  greeter-theme=gtk-greeter-160
  # Background color (#RRGGBB) or image:
  background=/usr/share/backgrounds/xfce/alone.jpg
  # User styles file:
  #css-file=
  # Logo: “file_path” or “#icon_name”
  #logo=
  # Gtk theme to use (in this case "greenbird" theme is used):
  gtk-theme=greenbird
  # Icons theme to use:
  icon-theme=kotenza
  #Not so important font setting:
  font-name=comfortaa


when all is done you can setup user icons.

  sudo systemctl enable accounts-daemon
  
  look in /var/lib/AccountsService/users/ for your name  if not so then you have to make it.you have to an text file with your username.
  with this info on board.
  [User]
  Language=nl_BE.utf8
  XSession=xfce
  Icon=/var/lib/AccountsService/icons/<username>.png

you have configured the the icon stuf.


make sure you install xorg-server-xephyr then u can do lightdm --test-mode to test how it works you get a black window with a patience you see if it working or not. are all certain of it.

Disable the running display manager forst with

  sudo systemctl disable mdm   # for example

then

  sudo systemctl enable lightdm


if you take another greeter it would work te same basicly for more infor you can read this further. -> [1]



Entrance


Entrance is a configurable DM designed for the Enlightenment desktop environment which allows selection of multiple themes, icons, and the enabling of virtual keyboards. The default installation offers a wallpaper with randomly displayed icons for each user account, although a fixed icon can be specified and custom icons compiled and added. When multiple Entrance themes are installed it is possible to have a default theme displayed on startup and individual themes that appear for each user as they begin login.

Entrance is available in the Arch User Repository (AUR) and may be installed with yay using the following command:

yay -S entrance-git



Plymouth

Manjaro no longer ships with Plymouth but for those using Plymouth you should enable the Plymouth specific services instead of the services mentioned above. Specifically, these are:

gdm-plymouth.service
lightdm-plymouth.service
lxdm-plymouth.service
sddm-plymouth.service


Troubleshooting

Display Manager Crashes (SystemD)

After Arch and other Arch-based derivatives introduced a new internal process called SystemD relatively recently, many display managers would crash upon attempting to log out and back in multiple times. While this should have been resolved at the time of writing, more experienced users encountering this problem can manually configure their display manager by editing the /etc/pam.d/[display manager] configuration file.

For example, where using SDDM, users would edit /etc/pam.d/sddm. For SLiM (already patched), it would be /etc/pam.d/slim, and so on. Once open, just add the following line at the end of the configuration file to solve the issue:

session 	required 	pam_systemd.so


Display Manager service cannot be disabled

If an old Display Manager service cannot be disabled with the command

sudo systemctl enable XXXX.service -f

(replace XXXX with the name of the Display Manager you want to disable), please try to disable all Display Managers on your System by deleting the following file:

sudo rm /etc/systemd/system/display-manager.service

Attention: After deleting this file, ALL Display Managers have been disabled and your system boots to a text-based interface [2]. You need to install and enable a Display Manager in order to be able to log in with a graphical user interface.


See Also