Problemas com lightdm 1.28 usando Manjaro 18.04 / Deepin 15.10 Release

Hello guys

It is appearing before the login screen, a white screen with X in the center and then normally enter the login screen, using the lightdm-deepin-greeter version. I've researched a lot, but I have not found a definitive solution. The only thing that resolves is to replace the greeter with another greeter.

In Terminal, if you type:
sudo lightdm --test-mode --debug

edson@edson-pc6540br ~]$ sudo lightdm --test-mode --debug
[sudo] senha para edson:
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.28.0, UID=0 PID=10285
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-deepin.conf
[+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 1
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 1
[+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 10290: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp vt1 -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
Failed to use bus name org.freedesktop.DisplayManager, do you have appropriate permissions?

If we use the command lightdm --test-mode --debug "without sudo" the display will appear, where the cursor will flash, but it is not possible to type inside the window even alternately the option CTRL + SHIFT

[edson@edson-pc6540br ~]$ lightdm --test-mode --debug
[+0.00s] DEBUG: Logging to /home/edson/.cache/lightdm/log/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.28.0, UID=1000 PID=11790
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-deepin.conf
[+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: Running in user mode
[+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
[+0.01s] DEBUG: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ?gio-vfs?
[+0.02s] DEBUG: Monitoring logind for seats
[+0.02s] DEBUG: New seat added from logind: seat0
[+0.02s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.02s] DEBUG: Seat seat0: Starting
[+0.02s] DEBUG: Seat seat0: Creating greeter session
[+0.02s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.02s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.03s] DEBUG: Seat seat0: Creating display server of type x
[+0.03s] DEBUG: posix_spawn avoided (fd close requested)
[+0.03s] DEBUG: Could not run plymouth --ping: Failed to execute child process ?plymouth? (No such file or directory)
[+0.03s] DEBUG: Seat seat0: Starting local X display
[+0.03s] DEBUG: XServer 1: Logging to /home/edson/.cache/lightdm/log/x-1.log
[+0.03s] DEBUG: XServer 1: Writing X server authority to /run/lightdm/root/:1
[+0.03s] WARNING: Error reading existing Xauthority: Failed to open file ?/run/lightdm/root/:1?: Permission denied
[+0.03s] WARNING: XServer 1: Failed to write authority: Failed to open X authority /run/lightdm/root/:1: Permission denied
[+0.03s] DEBUG: XServer 1: Launching X Server
[+0.03s] DEBUG: Launching process 11795: /usr/bin/Xephyr :1 -seat seat0 -auth /run/lightdm/root/:1 -nolisten tcp
[+0.03s] DEBUG: XServer 1: Waiting for ready signal from X server :1
[+0.03s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.03s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.03s] WARNING: Could not enumerate user data directory /var/lib/lightdm-data: Error opening directory '/var/lib/lightdm-data': Permission denied
[+0.19s] DEBUG: Got signal 10 from process 11795
[+0.19s] DEBUG: XServer 1: Got signal from X server :1
[+0.19s] DEBUG: XServer 1: Connecting to XServer :1
[+0.20s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+0.20s] DEBUG: Session: Not setting XDG_VTNR
[+0.20s] DEBUG: Session pid=11801: Started with service 'lightdm-greeter', username 'edson'
[+0.22s] DEBUG: Session pid=11801: Authentication complete with return value 0: Success
[+0.22s] DEBUG: Seat seat0: Session authenticated, running command
[+0.22s] DEBUG: Session pid=11801: Not setting XDG_VTNR
[+0.22s] DEBUG: Session pid=11801: Running command /usr/bin/deepin-greeter
[+0.22s] DEBUG: Creating shared data directory /var/lib/lightdm-data/edson
[+0.22s] WARNING: Could not create user data directory /var/lib/lightdm-data/edson: Error creating directory /var/lib/lightdm-data/edson: Permission denied
[+0.22s] DEBUG: Session pid=11801: Logging to /home/edson/.cache/lightdm/log/seat0-greeter.log
[+0.39s] DEBUG: Greeter connected version=1.28.0 api=1 resettable=false
[+0.55s] DEBUG: Greeter start authentication for edson
[+0.55s] DEBUG: Session: Not setting XDG_VTNR
[+0.55s] DEBUG: Session pid=11832: Started with service 'lightdm', username 'edson'
[+0.55s] DEBUG: Greeter start authentication for edson
[+0.55s] DEBUG: Session pid=11832: Sending SIGTERM
[+0.55s] DEBUG: Session: Not setting XDG_VTNR
[+0.55s] DEBUG: Session pid=11833: Started with service 'lightdm', username 'edson'
[+0.55s] DEBUG: Session pid=11832: Terminated with signal 15
[+0.55s] DEBUG: Session: Failed during authentication
[+0.55s] DEBUG: Seat seat0: Session stopped
[+0.55s] DEBUG: Launching process 11834: /usr/sbin/deepin-fix-xauthority-perm
[+0.56s] DEBUG: Process 11834 exited with return value 0
[+0.56s] DEBUG: Seat seat0: Exit status of /usr/sbin/deepin-fix-xauthority-perm: 0
[+0.61s] DEBUG: Session pid=11833: Got 1 message(s) from PAM
[+0.61s] DEBUG: Prompt greeter with 1 message(s

Imgur

Edited: Adding this information below:

[edson@edson-pc6540br ~]$ dmesg | grep -i error
[ 0.820975] RAS: Correctable Errors collector initialized.
[ 34.280345] lightdm-deepin-[665]: segfault at 0 ip 0000563e25b2cc87 sp 00007ffd5f686340 error 4 in lightdm-deepin-greeter[563e25b20000+99000]
[ 2898.992833] traps: KeyboardMonitor[2730] general protection ip:7f5680bddef7 sp:7f566affc810 error:0 in libc-2.29.so[7f5680bc6000+14c000]
[ 8051.450206] traps: lightdm-deepin-[11812] general protection ip:7fa71c392ef7 sp:7ffd170498e0 error:0 in libc-2.29.so[7fa71c37b000+14c000]
[edson@edson-pc6540br ~]$

If you can help me in this matter I am grateful (!)

Serial02

Start by reproducing the white screen with lightdm --test-mode --debug, comparing the sudo and non-sudo runs shown in the report. Inspect /var/log/lightdm/lightdm.log, the X server log, and the dmesg entries for lightdm-deepin-greeter; done means identifying and resolving the reported greeter failure without requiring a replacement greeter.