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Hi There,
I am using LightDM as my DisplayManager however recently out of the blue the LightDM will present with
systemd[1]: lightdm.service: Failed with result 'exit-code'.. I then Alt-F2 into tty2 and use
sudo systemctl start lightdm.serviceand the system launches up LightDM with no questions asked.
I tried running
sudo journalctl -xethough this is not showing any LightDM messages
Below is my LightDM.conf
#
# General configuration
#
# start-default-seat = True to always start one seat if none are defined in the configuration
# greeter-user = User to run greeter as
# minimum-display-number = Minimum display number to use for X servers
# minimum-vt = First VT to run displays on
# lock-memory = True to prevent memory from being paged to disk
# user-authority-in-system-dir = True if session authority should be in the system location
# guest-account-script = Script to be run to setup guest account
# logind-check-graphical = True to on start seats that are marked as graphical by logind
# log-directory = Directory to log information to
# run-directory = Directory to put running state in
# cache-directory = Directory to cache to
# sessions-directory = Directory to find sessions
# remote-sessions-directory = Directory to find remote sessions
# greeters-directory = Directory to find greeters
# backup-logs = True to move add a .old suffix to old log files when opening new ones
# dbus-service = True if LightDM provides a D-Bus service to control it
#
[LightDM]
#start-default-seat=true
#greeter-user=lightdm
#minimum-display-number=0
#minimum-vt=7 # Setting this to a value < 7 implies security issues, see FS#46799
#lock-memory=true
#user-authority-in-system-dir=false
#guest-account-script=guest-account
#logind-check-graphical=false
#log-directory=/var/log/lightdm
run-directory=/run/lightdm
#cache-directory=/var/cache/lightdm
#sessions-directory=/usr/share/lightdm/sessions:/usr/share/xsessions:/usr/share/wayland-sessions
#remote-sessions-directory=/usr/share/lightdm/remote-sessions
#greeters-directory=$XDG_DATA_DIRS/lightdm/greeters:$XDG_DATA_DIRS/xgreeters
#backup-logs=true
#dbus-service=true
#
# Seat configuration
#
# Seat configuration is matched against the seat name glob in the section, for example:
# [Seat:*] matches all seats and is applied first.
# [Seat:seat0] matches the seat named "seat0".
# [Seat:seat-thin-client*] matches all seats that have names that start with "seat-thin-client".
#
# type = Seat type (local, xremote)
# pam-service = PAM service to use for login
# pam-autologin-service = PAM service to use for autologin
# pam-greeter-service = PAM service to use for greeters
# xserver-command = X server command to run (can also contain arguments e.g. X -special-option)
# xmir-command = Xmir server command to run (can also contain arguments e.g. Xmir -special-option)
# xserver-config = Config file to pass to X server
# xserver-layout = Layout to pass to X server
# xserver-allow-tcp = True if TCP/IP connections are allowed to this X server
# xserver-share = True if the X server is shared for both greeter and session
# xserver-hostname = Hostname of X server (only for type=xremote)
# xserver-display-number = Display number of X server (only for type=xremote)
# xdmcp-manager = XDMCP manager to connect to (implies xserver-allow-tcp=true)
# xdmcp-port = XDMCP UDP/IP port to communicate on
# xdmcp-key = Authentication key to use for XDM-AUTHENTICATION-1 (stored in keys.conf)
# greeter-session = Session to load for greeter
# greeter-hide-users = True to hide the user list
# greeter-allow-guest = True if the greeter should show a guest login option
# greeter-show-manual-login = True if the greeter should offer a manual login option
# greeter-show-remote-login = True if the greeter should offer a remote login option
# user-session = Session to load for users
# allow-user-switching = True if allowed to switch users
# allow-guest = True if guest login is allowed
# guest-session = Session to load for guests (overrides user-session)
# session-wrapper = Wrapper script to run session with
# greeter-wrapper = Wrapper script to run greeter with
# guest-wrapper = Wrapper script to run guest sessions with
# display-setup-script = Script to run when starting a greeter session (runs as root)
# display-stopped-script = Script to run after stopping the display server (runs as root)
# greeter-setup-script = Script to run when starting a greeter (runs as root)
# session-setup-script = Script to run when starting a user session (runs as root)
# session-cleanup-script = Script to run when quitting a user session (runs as root)
# autologin-guest = True to log in as guest by default
# autologin-user = User to log in with by default (overrides autologin-guest)
# autologin-user-timeout = Number of seconds to wait before loading default user
# autologin-session = Session to load for automatic login (overrides user-session)
# autologin-in-background = True if autologin session should not be immediately activated
# exit-on-failure = True if the daemon should exit if this seat fails
#
[Seat:*]
#type=local
#pam-service=lightdm
#pam-autologin-service=lightdm-autologin
#pam-greeter-service=lightdm-greeter
#xserver-command=X
#xmir-command=Xmir
#xserver-config=
#xserver-layout=
#xserver-allow-tcp=false
#xserver-share=true
#xserver-hostname=
#xserver-display-number=
#xdmcp-manager=
#xdmcp-port=177
#xdmcp-key=
#greeter-session=example-gtk-gnome
greeter-session=lightdm-slick-greeter
greeter-hide-users=false
#greeter-allow-guest=true
#greeter-show-manual-login=false
#greeter-show-remote-login=true
#user-session=default
#allow-user-switching=true
#allow-guest=true
#guest-session=
session-wrapper=/etc/lightdm/Xsession
#greeter-wrapper=
#guest-wrapper=
#display-setup-script=
#display-stopped-script=
#greeter-setup-script=
#session-setup-script=
#session-cleanup-script=
#autologin-guest=false
#autologin-user=
#autologin-user-timeout=0
#autologin-in-background=false
#autologin-session=
#exit-on-failure=false
#
# XDMCP Server configuration
#
# enabled = True if XDMCP connections should be allowed
# port = UDP/IP port to listen for connections on
# listen-address = Host/address to listen for XDMCP connections (use all addresses if not present)
# key = Authentication key to use for XDM-AUTHENTICATION-1 or blank to not use authentication (stored in keys.conf)
# hostname = Hostname to report to XDMCP clients (defaults to system hostname if unset)
#
# The authentication key is a 56 bit DES key specified in hex as 0xnnnnnnnnnnnnnn. Alternatively
# it can be a word and the first 7 characters are used as the key.
#
[XDMCPServer]
#enabled=false
#port=177
#listen-address=
#key=
#hostname=
#
# VNC Server configuration
#
# enabled = True if VNC connections should be allowed
# command = Command to run Xvnc server with
# port = TCP/IP port to listen for connections on
# listen-address = Host/address to listen for VNC connections (use all addresses if not present)
# width = Width of display to use
# height = Height of display to use
# depth = Color depth of display to use
#
[VNCServer]
#enabled=false
#command=Xvnc
#port=5900
#listen-address=
#width=1024
#height=768
#depth=8and here is my slick-greeter.conf
# LightDM GTK+ Configuration
# Available configuration options listed below.
#
# activate-numlock=Whether to activate numlock. This features requires the installation of numlockx. (true or false)
# background=Background file to use, either an image path or a color (e.g. #772953)
# background-color=Background color (e.g. #772953), set before wallpaper is seen
# draw-user-backgrounds=Whether to draw user backgrounds (true or false)
# draw-grid=Whether to draw an overlay grid (true or false)
# show-hostname=Whether to show the hostname in the menubar (true or false)
# show-power=Whether to show the power indicator in the menubar (true or false)
# show-a11y=Whether to show the accessibility options in the menubar (true or false)
# show-keyboard=Whether to show the keyboard indicator in the menubar (true or false)
# show-clock=Whether to show the clock in the menubar (true or false)
# show-quit=Whether to show the quit menu in the menubar (true or false)
# logo=Logo file to use
# other-monitors-logo=Logo file to use for other monitors
# theme-name=GTK+ theme to use
# icon-theme-name=Icon theme to use
# font-name=Font to use
# xft-antialias=Whether to antialias Xft fonts (true or false)
# xft-dpi=Resolution for Xft in dots per inch
# xft-hintstyle=What degree of hinting to use (hintnone/hintslight/hintmedium/hintfull)
# xft-rgba=Type of subpixel antialiasing (none/rgb/bgr/vrgb/vbgr)
# onscreen-keyboard=Whether to enable the onscreen keyboard (true or false)
# high-contrast=Whether to use a high contrast theme (true or false)
# screen-reader=Whether to enable the screen reader (true or false)
# play-ready-sound=A sound file to play when the greeter is ready
# hidden-users=List of usernames that are hidden until a special key combination is hit
# group-filter=List of groups that users must be part of to be shown (empty list shows all users)
# enable-hidpi=Whether to enable HiDPI support (on/off/auto)
# only-on-monitor=Sets the monitor on which to show the login window, -1 means "follow the mouse"
# stretch-background-across-monitors=Whether to stretch the background across multiple monitors (false by default)
# clock-format=What clock format to use (e.g., %H:%M or %l:%M %p)
[Greeter]
activate-numlock=true
background=/usr/share/backgrounds/background.jpg
# background-color=Background color (e.g. #772953), set before wallpaper is seen
draw-user-backgrounds=false
draw-grid=false
# show-hostname=Whether to show the hostname in the menubar (true or false)
# show-power=Whether to show the power indicator in the menubar (true or false)
# show-a11y=Whether to show the accessibility options in the menubar (true or false)
# show-keyboard=Whether to show the keyboard indicator in the menubar (true or false)
# show-clock=Whether to show the clock in the menubar (true or false)
# show-quit=Whether to show the quit menu in the menubar (true or false)
# logo=Logo file to use
# other-monitors-logo=Logo file to use for other monitors
theme-name=Sweet-Dark
icon-theme-name=Candy-icons
font-name=MesloLGS NF
# xft-antialias=Whether to antialias Xft fonts (true or false)
# xft-dpi=Resolution for Xft in dots per inch
# xft-hintstyle=What degree of hinting to use (hintnone/hintslight/hintmedium/hintfull)
# xft-rgba=Type of subpixel antialiasing (none/rgb/bgr/vrgb/vbgr)
# onscreen-keyboard=Whether to enable the onscreen keyboard (true or false)
# high-contrast=Whether to use a high contrast theme (true or false)
# screen-reader=Whether to enable the screen reader (true or false)
# play-ready-sound=A sound file to play when the greeter is ready
# hidden-users=List of usernames that are hidden until a special key combination is hit
# group-filter=List of groups that users must be part of to be shown (empty list shows all users)
# enable-hidpi=Whether to enable HiDPI support (on/off/auto)
# only-on-monitor=Sets the monitor on which to show the login window, -1 means "follow the mouse"
# stretch-background-across-monitors=Whether to stretch the background across multiple monitors (false by default)
# clock-format=What clock format to use (e.g., %H:%M or %l:%M %p)Any assistance would be great
Last edited by ArcticStag (2021-04-05 22:05:16)
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#logind-check-graphical=falseLightDM#LightDM_does_not_appear_or_monitor_only_displays_TTY_output
If that does not resolve the issue, please post the contents of /var/log/Xorg.0.log /var/log/lightdm/lightdm.log and var/log/lightdm/seat0-greeter.log after lightdm fails but before you restart it.
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[EDIT] This worked like a charm. Thanks again
Thanks, I have made this change and I will update once I have tested this.
Thank you
Last edited by ArcticStag (2021-04-05 22:04:45)
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