No change background image

[ghost]

I did everything according to your instructions.
I changed the file lightdm-razor-greeter.conf for such content:
`# lightdm-razor-greeter.conf

General configuration

greeter-background = /path/to/background/image to set a background image for the login screen

loginform-offset-x = how far from the left edge of the screen should the loginform be placed.

Can be given in pixes, e.g. loginform-offset-x=60px, or in percentage of screen width, e.g. loginform-offset-x=20%.

loginform-offset-y = how far from the left edge of the screen should the loginform be placed.

Can be given in pixels, e.g. loginform-offset-y=60px, or in percentage of screen width, e.g. loginform-offset-y=20%.

[General]
greeter-background-image=/home/admin/lightdm.png
loginform-offset-x=50%
loginform-offset-y=50%

The background is not changed! Attached is log /var/log/lightdm/lightdm.log[+0.09s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.09s] DEBUG: Starting Light Display Manager 1.10.3, UID=0 PID=744
[+0.09s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/01_debian.conf
[+0.09s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.09s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.09s] DEBUG: Registered seat module xlocal
[+0.09s] DEBUG: Registered seat module xremote
[+0.09s] DEBUG: Registered seat module unity
[+0.09s] DEBUG: Registered seat module surfaceflinger
[+1.18s] DEBUG: Adding default seat
[+1.18s] DEBUG: Seat: Starting
[+1.18s] DEBUG: Seat: Creating greeter session
[+1.46s] DEBUG: Seat: Creating display server of type x
[+1.46s] DEBUG: Could not run plymouth --ping: Failed to execute child process "plymouth" (No such file or directory)
[+1.46s] DEBUG: Using VT 7
[+1.46s] DEBUG: Seat: Starting local X display on VT 7
[+1.46s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+1.51s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+1.51s] DEBUG: DisplayServer x-0: Launching X Server
[+1.56s] DEBUG: Launching process 778: /usr/bin/X :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+1.56s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+1.56s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+1.56s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+1.70s] WARNING: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
[+1.71s] DEBUG: Loading user config from /etc/lightdm/users.conf
[+2.08s] DEBUG: User user added
[+2.08s] DEBUG: User admin added
[+7.08s] DEBUG: Got signal 10 from process 778
[+7.08s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+7.08s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+7.08s] DEBUG: Seat: Display server ready, starting session authentication
[+7.08s] DEBUG: Session pid=845: Started with service 'lightdm-greeter', username 'lightdm'
[+7.26s] DEBUG: Session pid=845: Authentication complete with return value 0: Success
[+7.26s] DEBUG: Seat: Session authenticated, running command
[+7.26s] DEBUG: Session pid=845: Running command /usr/bin/razor-lightdm-greeter
[+7.26s] DEBUG: Creating shared data directory /var/lib/lightdm/data/lightdm
[+7.26s] DEBUG: Session pid=845: Logging to /var/log/lightdm/x-0-greeter.log
[+7.44s] DEBUG: Activating VT 7
[+7.44s] DEBUG: Activating login1 session c1
[+9.91s] DEBUG: Session pid=845: Greeter connected version=1.10.3
[+32.51s] DEBUG: Session pid=845: Greeter start authentication for admin
[+32.52s] DEBUG: Session pid=856: Started with service 'lightdm', username 'admin'
[+32.56s] DEBUG: Session pid=856: Got 1 message(s) from PAM
[+32.56s] DEBUG: Session pid=845: Prompt greeter with 1 message(s)
[+32.56s] DEBUG: Session pid=845: Continue authentication
[+32.58s] DEBUG: Session pid=856: Authentication complete with return value 0: Success
[+32.58s] DEBUG: Session pid=845: Authenticate result for user admin: Success
[+32.58s] DEBUG: Session pid=845: User admin authorized
[+32.58s] DEBUG: Session pid=845: Greeter requests session LXDE
[+32.58s] DEBUG: Seat: Stopping greeter; display server will be re-used for user session
[+32.58s] DEBUG: Session pid=845: Sending SIGTERM
[+32.64s] DEBUG: Session pid=845: Greeter closed communication channel
[+32.64s] DEBUG: Session pid=845: Exited with return value 15
[+32.64s] DEBUG: Seat: Session stopped
[+32.64s] DEBUG: Seat: Greeter stopped, running session
[+32.64s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+32.66s] DEBUG: Session pid=856: Running command /etc/X11/Xsession /usr/bin/startlxde
[+32.66s] DEBUG: Creating shared data directory /var/lib/lightdm/data/admin
[+32.66s] DEBUG: Session pid=856: Logging to .xsession-errors
[+32.89s] DEBUG: Activating VT 7
[+32.89s] DEBUG: Activating login1 session 1`

Attached is log /var/log/lightdm/x-0-greeter.log
** (process:851): WARNING **: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files Could not resolve property : linearGradient4248 Could not resolve property : pattern6290 Could not resolve property : pattern6192 Could not resolve property : pattern6992