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#1 2019-06-19 15:22:05

Oromei
Member
Registered: 2018-12-21
Posts: 10

Unknown lightdm issue: Failed to start Light Display Manager

Hello all,

I have searched the forums and have found people with similar error messages, yet the solutions haven't helped me in my situation. I feel like I have done everything I was supposed to do in setting up lightdm, yet it fails.

My distro configuration:
Arch + i3gaps

Steps done for installing lightdm:

$ sudo pacman -S lightdm lightdm-gtk-greeter lightdm-gtk-greeter-settings
edited /etc/lightdm/lightdm.conf to "session-greeter=lightdm-gtk-greeter"
$ sudo systemctl enable lightdm.service
$ reboot

At this point, I get stuck on a black screen until I CTL+ALT+F2 login. Here is what I get when I run the status and debug tools:

$ systemctl status lightdm.service:
● lightdm.service - Light Display Manager
   Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2019-06-19 06:59:33 EDT; 14min ago
     Docs: man:lightdm(1)
  Process: 749 ExecStart=/usr/bin/lightdm (code=exited, status=1/FAILURE)
 Main PID: 749 (code=exited, status=1/FAILURE)

Jun 19 06:59:33 aaron-thinkpad systemd[1]: lightdm.service: Service RestartSec=100ms expired, scheduling restart.
Jun 19 06:59:33 aaron-thinkpad systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
Jun 19 06:59:33 aaron-thinkpad systemd[1]: Stopped Light Display Manager.
Jun 19 06:59:33 aaron-thinkpad systemd[1]: lightdm.service: Start request repeated too quickly.
Jun 19 06:59:33 aaron-thinkpad systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jun 19 06:59:33 aaron-thinkpad systemd[1]: Failed to start Light Display Manager.
$ sudo lightdm –-test-mode --debug
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.28.0, UID=0 PID=1889
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using Xephyr for X servers
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ?gio-vfs?
[+0.01s] DEBUG: Monitoring logind for seats
[+0.01s] DEBUG: New seat added from logind: seat0
[+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.01s] DEBUG: Seat seat0: Starting
[+0.01s] DEBUG: Seat seat0: Creating greeter session
[+0.01s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: posix_spawn avoided (fd close requested) 
[+0.01s] DEBUG: Could not run plymouth --ping: Failed to execute child process ?plymouth? (No such file or directory)
[+0.01s] DEBUG: Using VT 7
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.01s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log
[+0.01s] DEBUG: XServer 1: Writing X server authority to /run/lightdm/root/:1
[+0.01s] DEBUG: XServer 1: Launching X Server
[+0.01s] DEBUG: Launching process 1894: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: XServer 1: Waiting for ready signal from X server :1
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.01s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.01s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.02s] DEBUG: Process 1894 exited with return value 1
[+0.02s] DEBUG: XServer 1: X server stopped
[+0.02s] DEBUG: Releasing VT 7
[+0.02s] DEBUG: XServer 1: Removing X server authority /run/lightdm/root/:1
[+0.02s] DEBUG: Seat seat0: Display server stopped
[+0.02s] DEBUG: Seat seat0: Stopping session
[+0.02s] DEBUG: Seat seat0: Session stopped
[+0.02s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.02s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+0.02s] DEBUG: Seat seat0: Stopping
[+0.02s] DEBUG: Seat seat0: Stopped
[+0.02s] DEBUG: Required seat has stopped
[+0.02s] DEBUG: Stopping display manager
[+0.02s] DEBUG: Display manager stopped
[+0.02s] DEBUG: Stopping daemon
[+0.03s] DEBUG: Exiting with return value 1

Thank you for any help you can give me!!

Last edited by Oromei (2019-06-19 16:27:10)

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#2 2019-06-19 15:50:49

smuise
Member
From: Yarmouth NS
Registered: 2018-08-06
Posts: 7

Re: Unknown lightdm issue: Failed to start Light Display Manager

Oromei wrote:

[+0.02s] DEBUG: Seat seat0: Stopping; greeter display server failed to start

What happens if you try to run startx manually? If I'm reading that right it looks like it's failing to start the display server.

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#3 2019-06-19 15:57:26

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,426
Website

Re: Unknown lightdm issue: Failed to start Light Display Manager

Please edit your post and use code tags: https://wiki.archlinux.org/index.php/Co … s_and_code

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

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#4 2019-06-19 16:28:51

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

smuise wrote:
Oromei wrote:

[+0.02s] DEBUG: Seat seat0: Stopping; greeter display server failed to start

What happens if you try to run startx manually? If I'm reading that right it looks like it's failing to start the display server.

So when I reboot I'm stuck on a blank screen I cannot type in, just a blinking underscore cursor. CTL+ALT+F2 brings me to the normal cli login before starting x, where I login and then startx without any issues

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#5 2019-06-19 16:42:47

smuise
Member
From: Yarmouth NS
Registered: 2018-08-06
Posts: 7

Re: Unknown lightdm issue: Failed to start Light Display Manager

Okay, can you provide your /etc/lightdm/lightdm.conf file?

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#6 2019-06-19 16:57:34

loqs
Member
Registered: 2014-03-06
Posts: 19,060

Re: Unknown lightdm issue: Failed to start Light Display Manager

Also the contents of /var/log/lightdm/lightdm.log please.

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#7 2019-06-19 21:03:14

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

$ cat /etc/lightdm/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, unity)
# 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-backend = X backend to use (mir)
# 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)
# unity-compositor-command = Unity compositor command to run (can also contain arguments e.g. unity-system-compositor -special-option)
# unity-compositor-timeout = Number of seconds to wait for compositor to start
# greeter-session = lightdm-slick-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-backend=
#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=
#unity-compositor-command=unity-system-compositor
#unity-compositor-timeout=60
greeter-session=lightdm-gtk-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=8
$ sudo cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.28.0, UID=0 PID=2182
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using Xephyr for X servers
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.01s] DEBUG: Monitoring logind for seats
[+0.01s] DEBUG: New seat added from logind: seat0
[+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.01s] DEBUG: Seat seat0: Starting
[+0.01s] DEBUG: Seat seat0: Creating greeter session
[+0.01s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: posix_spawn avoided (fd close requested) 
[+0.01s] DEBUG: Could not run plymouth --ping: Failed to execute child process “plymouth” (No such file or directory)
[+0.01s] DEBUG: Using VT 7
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.01s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log
[+0.01s] DEBUG: XServer 1: Writing X server authority to /run/lightdm/root/:1
[+0.01s] DEBUG: XServer 1: Launching X Server
[+0.01s] DEBUG: Launching process 2187: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: XServer 1: Waiting for ready signal from X server :1
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.01s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.01s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.02s] DEBUG: Process 2187 exited with return value 1
[+0.02s] DEBUG: XServer 1: X server stopped
[+0.02s] DEBUG: Releasing VT 7
[+0.02s] DEBUG: XServer 1: Removing X server authority /run/lightdm/root/:1
[+0.02s] DEBUG: Seat seat0: Display server stopped
[+0.02s] DEBUG: Seat seat0: Stopping session
[+0.02s] DEBUG: Seat seat0: Session stopped
[+0.02s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.02s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+0.02s] DEBUG: Seat seat0: Stopping
[+0.02s] DEBUG: Seat seat0: Stopped
[+0.02s] DEBUG: Required seat has stopped
[+0.02s] DEBUG: Stopping display manager
[+0.02s] DEBUG: Display manager stopped
[+0.02s] DEBUG: Stopping daemon
[+0.02s] DEBUG: Exiting with return value 1

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#8 2019-06-19 22:41:10

smuise
Member
From: Yarmouth NS
Registered: 2018-08-06
Posts: 7

Re: Unknown lightdm issue: Failed to start Light Display Manager

Oromei wrote:
[+0.01s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log
[+0.01s] DEBUG: Launching process 2187: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
[+0.02s] DEBUG: Process 2187 exited with return value 1

Could you also provide /var/log/lightdm/x-1.log? Seems like X isn't starting, not sure why it wouldn't start if startx works though.

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#9 2019-06-19 23:19:02

loqs
Member
Registered: 2014-03-06
Posts: 19,060

Re: Unknown lightdm issue: Failed to start Light Display Manager

[+0.00s] DEBUG: Using Xephyr for X servers
...
[+0.01s] DEBUG: Launching process 2187: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch

The use of Xephyr  suggests the log is from `lightdm --test-mode --debug` not from lightdm.service

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#10 2019-06-20 02:00:19

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

here is /var/log/lightdm/x-1.log

sudo cat /var/log/lightdm/x-1.log
Unrecognized option: vt7
use: X [:<display>] [option]
-a #                   default pointer acceleration (factor)
-ac                    disable access control restrictions
-audit int             set audit trail level
-auth file             select authorization file
-br                    create root window with black background
+bs                    enable any backing store support
-bs                    disable any backing store support
-c                     turns off key-click
c #                    key-click volume (0-100)
-cc int                default color visual class
-nocursor              disable the cursor
-core                  generate core dump on fatal error
-displayfd fd          file descriptor to write display number to when ready to connect
-dpi int               screen resolution in dots per inch
-dpms                  disables VESA DPMS monitor control
-deferglyphs [none|all|16] defer loading of [no|all|16-bit] glyphs
-f #                   bell base (0-100)
-fc string             cursor font
-fn string             default font name
-fp string             default font path
-help                  prints message with these options
+iglx                  Allow creating indirect GLX contexts
-iglx                  Prohibit creating indirect GLX contexts (default)
-I                     ignore all remaining arguments
-ld int                limit data space to N Kb
-lf int                limit number of open files to N
-ls int                limit stack space to N Kb
-nolock                disable the locking mechanism
-maxclients n          set maximum number of clients (power of two)
-nolisten string       don't listen on protocol
-listen string         listen on protocol
-noreset               don't reset after last client exists
-background [none]     create root window with no background
-reset                 reset after last client exists
-p #                   screen-saver pattern duration (minutes)
-pn                    accept failure to listen on all ports
-nopn                  reject failure to listen on all ports
-r                     turns off auto-repeat
r                      turns on auto-repeat 
-render [default|mono|gray|color] set render color alloc policy
-retro                 start with classic stipple and cursor
-s #                   screen-saver timeout (minutes)
-seat string           seat to run on
-t #                   default pointer threshold (pixels/t)
-terminate             terminate at server reset
-to #                  connection time out
-tst                   disable testing extensions
ttyxx                  server started from init on /dev/ttyxx
v                      video blanking for screen-saver
-v                     screen-saver without video blanking
-wm                    WhenMapped default backing-store
-wr                    create root window with white background
-maxbigreqsize         set maximal bigrequest size 
+xinerama              Enable XINERAMA extension
-xinerama              Disable XINERAMA extension
-dumbSched             Disable smart scheduling and threaded input, enable old behavior
-schedInterval int     Set scheduler interval in msec
-sigstop               Enable SIGSTOP based startup
+extension name        Enable extension
-extension name        Disable extension
-query host-name       contact named host for XDMCP
-broadcast             broadcast for XDMCP
-multicast [addr [hops]] IPv6 multicast for XDMCP
-indirect host-name    contact named host for indirect XDMCP
-port port-num         UDP port number to send messages to
-from local-address    specify the local address to connect from
-once                  Terminate server after one session
-class display-class   specify display class to send in manage
-cookie xdm-auth-bits  specify the magic cookie for XDMCP
-displayID display-id  manufacturer display ID for request
[+-]accessx [ timeout [ timeout_mask [ feedback [ options_mask] ] ] ]
                       enable/disable accessx key sequences
-ardelay               set XKB autorepeat delay
-arinterval            set XKB autorepeat interval

TinyX Device Dependent Usage:
-screen WIDTH[/WIDTHMM]xHEIGHT[/HEIGHTMM][+[-]XOFFSET][+[-]YOFFSET][@ROTATION][X][Y][xDEPTH/BPP[xFREQ]]  Specify screen characteristics
-rgba rgb/bgr/vrgb/vbgr/none   Specify subpixel ordering for LCD panels
-mouse driver [,n,,options]    Specify the pointer driver and its options (n is the number of buttons)
-keybd driver [,,options]      Specify the keyboard driver and its options
-xkb-rules       Set default XkbRules value (can be overriden by -keybd options)
-xkb-model       Set default XkbModel value (can be overriden by -keybd options)
-xkb-layout      Set default XkbLayout value (can be overriden by -keybd options)
-xkb-variant     Set default XkbVariant value (can be overriden by -keybd options)
-xkb-options     Set default XkbOptions value (can be overriden by -keybd options)
-zaphod          Disable cursor screen switching
-2button         Emulate 3 button mouse
-3button         Disable 3 button mouse emulation
-rawcoord        Don't transform pointer coordinates on rotation
-dumb            Disable hardware acceleration
-softCursor      Force software cursor
-videoTest       Start the server, pause momentarily and exit
-origin X,Y      Locates the next screen in the the virtual screen (Xinerama)
-switchCmd       Command to execute on vt switch
vtxx             Use virtual terminal xx instead of the next available

Xephyr Option Usage:
-parent <XID>        Use existing window as Xephyr root win
-sw-cursor           Render cursors in software in Xephyr
-fullscreen          Attempt to run Xephyr fullscreen
-output <NAME>       Attempt to run Xephyr fullscreen (restricted to given output geometry)
-grayscale           Simulate 8bit grayscale
-resizeable          Make Xephyr windows resizeable
-glamor              Enable 2D acceleration using glamor
-glamor_gles2        Enable 2D acceleration using glamor (with GLES2 only)
-glamor-skip-present Skip presenting the output when using glamor (for internal testing optimization)
-fakexa              Simulate acceleration using software rendering
-verbosity <level>   Set log verbosity level
-noxv                do not use XV
-name [name]         define the name in the WM_CLASS property
-title [title]       set the window title in the WM_NAME property
-no-host-grab        Disable grabbing the keyboard and mouse.

(EE) 
Fatal server error:
(EE) Unrecognized option: vt7
(EE)

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#11 2019-06-20 02:02:33

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,426
Website

Re: Unknown lightdm issue: Failed to start Light Display Manager

How did you install Arch?

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

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#12 2019-06-20 02:07:59

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

loqs wrote:
[+0.00s] DEBUG: Using Xephyr for X servers
...
[+0.01s] DEBUG: Launching process 2187: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch

The use of Xephyr  suggests the log is from `lightdm --test-mode --debug` not from lightdm.service


I rebooted and snagged the log again to ensure it was from lightdm.service, heres what i got

 sudo cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.28.0, UID=0 PID=1792
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.01s] DEBUG: Monitoring logind for seats
[+0.01s] DEBUG: New seat added from logind: seat0
[+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.01s] DEBUG: Seat seat0: Starting
[+0.01s] DEBUG: Seat seat0: Creating greeter session
[+0.01s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: posix_spawn avoided (fd close requested) 
[+0.01s] DEBUG: Could not run plymouth --ping: Failed to execute child process “plymouth” (No such file or directory)
[+0.01s] DEBUG: Using VT 7
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.01s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log
[+0.01s] DEBUG: XServer 1: Writing X server authority to /run/lightdm/root/:1
[+0.01s] DEBUG: XServer 1: Launching X Server
[+0.01s] DEBUG: Launching process 1798: /usr/bin/X :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: XServer 1: Waiting for ready signal from X server :1
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.05s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.05s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+1.23s] DEBUG: Seat seat0 changes active session to 
[+17.84s] DEBUG: Seat seat0 changes active session to 3

just a black screen

Last edited by Oromei (2019-06-20 02:20:21)

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#13 2019-06-20 02:11:30

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

jasonwryan wrote:

How did you install Arch?

pretty standard dual boot procedure I think. I have root and home on its own ssd, and I use windows' EFI folder for my uefi booting

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#14 2019-06-20 02:23:36

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,426
Website

Re: Unknown lightdm issue: Failed to start Light Display Manager

Oromei wrote:
jasonwryan wrote:

How did you install Arch?

pretty standard dual boot procedure I think. I have root and home on its own ssd, and I use windows' EFI folder for my uefi booting

I meant which install media and guide did you use?

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

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#15 2019-06-20 02:28:39

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

jasonwryan wrote:
Oromei wrote:
jasonwryan wrote:

How did you install Arch?

pretty standard dual boot procedure I think. I have root and home on its own ssd, and I use windows' EFI folder for my uefi booting

I meant which install media and guide did you use?

Arch iso from archlinux -> bootable usb via rufus and followed arch wiki for install help

Last edited by Oromei (2019-06-20 02:29:37)

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#16 2019-06-20 02:29:39

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,426
Website

Re: Unknown lightdm issue: Failed to start Light Display Manager

So you had X working before you installed a DM?

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

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#17 2019-06-20 02:33:40

Oromei
Member
Registered: 2018-12-21
Posts: 10

Re: Unknown lightdm issue: Failed to start Light Display Manager

Yep, I had x installed and working properly prior to installing lightdm

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#18 2019-06-20 10:32:26

loqs
Member
Registered: 2014-03-06
Posts: 19,060

Re: Unknown lightdm issue: Failed to start Light Display Manager

What is the contents of /var/log/Xorg.0.log

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