[SOLVED] Lightdm can't start

emil12543 · 2017-09-11 11:24:02

I've installed Deepin as DE on a new installation. The GPU is GTX 960m and I installed the nvidia proprietary drivers. When the linux starts, it just shows blackscreen with an underscore in the top left corner. Not sure which logs are needed so here are the lightdm logs.

Last edited by emil12543 (2017-09-11 22:36:08)

dockland · 2017-09-11 11:33:44

Please post your lightdm.conf and what greeter you have installed.

emil12543 · 2017-09-11 11:47:36

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 = 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-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-deepin-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

As you can see I am using lightdm-deepin-greeter

mrunion · 2017-09-11 12:36:04

I would start here: https://wiki.archlinux.org/index.php/NV … X_shutdown

emil12543 · 2017-09-11 12:51:09

mrunion wrote:

I would start here: https://wiki.archlinux.org/index.php/NV … X_shutdown

Tried but didn't work.. When I tried only with the mkinitcpio module even the underscore didn't appear.

V1del · 2017-09-11 13:48:27

You can't just install the nvidia drivers on a laptop, decide if you want to use the power saving intel card and only use the nvidia card on an as needed basis, or forego powersaving and use the nvidia card exclusively for higher performance (suspend and hibernate won't work if you do this).

If A) look at https://wiki.archlinux.org/index.php/Bumblebee if B) look at https://wiki.archlinux.org/index.php/NV … us#LightDM

Revert the changes you've done from the previous advice, they might lead to further trouble that would be avoidable.

emil12543 · 2017-09-11 14:05:00

V1del wrote:

You can't just install the nvidia drivers on a laptop, decide if you want to use the power saving intel card and only use the nvidia card on an as needed basis, or forego powersaving and use the nvidia card exclusively for higher performance (suspend and hibernate won't work if you do this).
If A) look at https://wiki.archlinux.org/index.php/Bumblebee if B) look at https://wiki.archlinux.org/index.php/NV … us#LightDM
Revert the changes you've done from the previous advice, they might lead to further trouble that would be avoidable.

Thanks for the advice! I decided to start from scratch and I want to use the intel integrated gpu most of the time.. So I choose A - Bumblebee.

So now I installed Deepin and Nvidia drivers but noticed that the nvidia and nvidia-utils packages are different versions.. Is it a problem?

Last edited by emil12543 (2017-09-11 14:07:49)

V1del · 2017-09-11 15:27:19

How different? if it's just the pkgrel after the actual version, that is normal and to be expected, because the nvidia package contains the kernel module that has to be rebuilt against newer kernels occasionally.

emil12543 · 2017-09-11 15:33:54

V1del wrote:

How different? if it's just the pkgrel after the actual version, that is normal and to be expected, because the nvidia package contains the kernel module that has to be rebuilt against newer kernels occasionally.

nvidia - 384.69-2
nvidia-utils - 384.69-1

I installed everything and now I am running the deepin DE. I followed the bumblebee instructions. Now the problem is that the external monitor doesn't work - it works only when the greeter is shown. When I login only the laptop screen is working.. Not sure how to turn it on - maybe with xorg.conf?

emil12543 · 2017-09-11 22:35:35

The way how I installed everything properly was first to install nvidia, after that the xorg package and deepin.

Arch Linux

#1 2017-09-11 11:24:02

[SOLVED] Lightdm can't start

#2 2017-09-11 11:33:44

Re: [SOLVED] Lightdm can't start

#3 2017-09-11 11:47:36

Re: [SOLVED] Lightdm can't start

#4 2017-09-11 12:36:04

Re: [SOLVED] Lightdm can't start

#5 2017-09-11 12:51:09

Re: [SOLVED] Lightdm can't start

#6 2017-09-11 13:48:27

Re: [SOLVED] Lightdm can't start

#7 2017-09-11 14:05:00

Re: [SOLVED] Lightdm can't start

#8 2017-09-11 15:27:19

Re: [SOLVED] Lightdm can't start

#9 2017-09-11 15:33:54

Re: [SOLVED] Lightdm can't start

#10 2017-09-11 22:35:35

Re: [SOLVED] Lightdm can't start

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