Subject: bug#529: lightdm: on login, lightdm starts a second xserver on the next tty, with mirrored xsession

From: B Stack <[email-masked]>
Date: Thu, 10 Dec 2020 16:03:56 -0500

Hello,

Thank you for your report! The only changes between the versions in
question were to add pam-elogind support, and add a particular setting
to the default lightdm config.

Would you please share the results after you change the value of
"xserver-share" to "true" or omitted in file
/usr/share/lightdm/lightdm.conf.d/01_debian.conf.

This sounds directly related to your issue, and the explicit default
of false was added to resolve #493.

B. Stack

On Sat, Dec 5, 2020 at 10:02 AM Florian Zieboll <[email-masked]> wrote:
>
> Package: lightdm
> Version: 1.26.0-4+devuan1
> Severity: normal
>
> Hello,
>
> after installing beowulf-proposed-updates on my lxqt-beowulf computer, when
> logging in at the lightdm (1.26.0-4+devuan1) logon screen (tty7), a second
> xserver gets startetd on tty8, which mirrors the xsession on tty7. Going back
> to tty7, I have to (lightdm-)login again to the running xsession. After further
> tty switching, the xserver0 on tty7 exits, while xserver1 on tty8 still serves
> the "common" Desktop. Now the system is stable as before the update, with the
> Desktop session running on tty8, while tty7 is not available.
>
> The issue can be reproduced reliably, a downgrade of lightdm to the "beowulf
> main" version (1.26.0-4) resolves it.
>
> Steps to reproduce (with respective time in the attached lightdm.log):
>
>
> 1.) restart lightdm (init.d) +0.00s (12:20, see lightdm/x-0.log.old,
> seat0-greeter.log.old):
>                 tty7 [gtk-greeter] -> tty8 [n/a]
>
> 2.) login @tty7 as "florian" [Desktop] +44.08s
>                         [+48.59s] second xserver started (12:21, see
> lightdm/x-1.log)
>
> 3.) switch from tty7 [Desktop] -> tty8 [Desktop, mirrored] ca. +120s
>
> 4.) switch from tty8 [Desktop] -> tty7 [gtk-greeter, one flicker] +235.23s
> (12:24, see lightdm/x-0.log, end of seat0-greeter.log.old, beginning of
> seat0-greeter.log)
>
> 5.) login #2 @tty7 [Desktop, mirrored] +386.28s
>
> 6.) switch from tty7 [Desktop] -> tty8 [Desktop, mirrored] ca. +500s
>
> 7.) switch from tty8 [Desktop] -> tty7 [n/a] ca. +620s
>
> 8.) switch around and find every thing stable, with the desktop running on tty8
>
>
> When I do the second login @tty7 at 5.) with another user, the session gets
> started, but always after returning to tty7 from another tty, the gtk-greeter
> is presented. In the meantime, the first user's session on tty8 remains
> unlocked.
>
>
>
>
> # uname -a
> Linux nulldevice.lan 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28)
> x86_64 GNU/Linux
>
>
>
>
> # cat /etc/apt/sources.list
> deb http://pkgmaster.devuan.org/merged beowulf main non-free contrib
> deb http://pkgmaster.devuan.org/merged beowulf-security main non-free contrib
> deb http://pkgmaster.devuan.org/merged beowulf-updates main non-free contrib
> deb http://pkgmaster.devuan.org/merged beowulf-backports main non-free contrib
> deb http://security.debian.org/debian-security buster/updates main non-free
> contrib
> deb http://pkgmaster.devuan.org/merged beowulf-proposed-updates main
>
>
>
>
> # dpkg -l *lightdm*
> ---snip---
> ii  liblightdm-gobject-1-0:amd64    1.26.0-4+devuan1    amd64
> ii  lightdm                         1.26.0-4+devuan1    amd64
> un  lightdm-greeter                 <none>              <none>
> ii  lightdm-gtk-greeter             2.0.6-1             amd64
>
>
>
>
> # cat /var/log/lightdm/lightdm.log
> [+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
> [+0.00s] DEBUG: Starting Light Display Manager 1.26.0, UID=0 PID=4594
> [+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/01_debian.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: 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: Monitoring logind for seats
> [+0.00s] DEBUG: New seat added from logind: seat0
> [+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
> [+0.00s] DEBUG: Seat seat0: Starting
> [+0.00s] DEBUG: Seat seat0: Creating greeter session
> [+0.00s] DEBUG: Seat seat0: Creating display server of type x
> [+0.00s] DEBUG: posix_spawn avoided (fd close requested)
> [+0.00s] DEBUG: Could not run plymouth --ping: Failed to execute child process
> “plymouth” (No such file or directory)
> [+0.00s] DEBUG: Using VT 7
> [+0.00s] DEBUG: Seat seat0: Starting local X display on VT 7
> [+0.00s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
> [+0.00s] DEBUG: XServer 0: Writing X server authority to
> /var/run/lightdm/root/:0
> [+0.00s] DEBUG: XServer 0: Launching X Server
> [+0.00s] DEBUG: Launching process 4610: /usr/bin/X :0 -seat seat0 -auth
> /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
> [+0.00s] DEBUG: XServer 0: Waiting for ready signal from X server :0
> [+0.00s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
> [+0.00s] DEBUG: Registering seat with bus path
> /org/freedesktop/DisplayManager/Seat0
> [+0.00s] 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
> [+0.00s] DEBUG: Loading user config from /etc/lightdm/users.conf
> [+0.00s] DEBUG: User florian added
> [+0.00s] DEBUG: User administrator added
> [+0.00s] DEBUG: User gast added
> [+0.00s] DEBUG: posix_spawn avoided (automatic reaping requested) (fd close
> requested)
> [+0.01s] DEBUG: Seat seat0 changes active session to
> [+0.37s] DEBUG: Got signal 10 from process 4610
> [+0.37s] DEBUG: XServer 0: Got signal from X server :0
> [+0.37s] DEBUG: XServer 0: Connecting to XServer :0
> [+0.37s] DEBUG: posix_spawn avoided (fd close requested) (child_setup
> specified)
> [+0.37s] DEBUG: Seat seat0: Display server ready, starting session
> authentication
> [+0.37s] DEBUG: Session pid=4630: Started with service 'lightdm-greeter',
> username 'lightdm'
> [+0.39s] DEBUG: Session pid=4630: Authentication complete with return value 0:
> Success
> [+0.39s] DEBUG: Seat seat0: Session authenticated, running command
> [+0.39s] DEBUG: Session pid=4630: Running command /usr/sbin/lightdm-gtk-greeter
> [+0.39s] DEBUG: Creating shared data directory /var/lib/lightdm/data/lightdm
> [+0.39s] DEBUG: Session pid=4630: Logging to /var/log/lightdm/seat0-greeter.log
> [+0.40s] DEBUG: Activating VT 7
> [+0.51s] DEBUG: Greeter connected version=1.26.0 api=1 resettable=false
> [+0.67s] DEBUG: Greeter start authentication
> [+0.67s] DEBUG: Session pid=4661: Started with service 'lightdm', username
> '(null)'
> [+0.67s] DEBUG: Session pid=4661: Got 1 message(s) from PAM
> [+0.67s] DEBUG: Prompt greeter with 1 message(s)
> [+44.08s] DEBUG: Greeter start authentication for florian
> [+44.08s] DEBUG: Session pid=4661: Sending SIGTERM
> [+44.09s] DEBUG: Session pid=4664: Started with service 'lightdm', username
> 'florian'
> [+44.09s] DEBUG: Session pid=4661: Terminated with signal 15
> [+44.09s] DEBUG: Session: Failed during authentication
> [+44.09s] DEBUG: Seat seat0: Session stopped
> [+44.09s] DEBUG: Session pid=4664: Got 1 message(s) from PAM
> [+44.09s] DEBUG: Prompt greeter with 1 message(s)
> [+48.56s] DEBUG: Continue authentication
> [+48.57s] DEBUG: Session pid=4664: Authentication complete with return value 0:
> Success
> [+48.57s] DEBUG: Authenticate result for user florian: Success
> [+48.57s] DEBUG: User florian authorized
> [+48.59s] DEBUG: Greeter requests session lxqt
> [+48.59s] DEBUG: Seat seat0: Creating display server of type x
> [+48.59s] DEBUG: Using VT 8
> [+48.59s] DEBUG: Seat seat0: Starting local X display on VT 8
> [+48.59s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log
> [+48.59s] DEBUG: XServer 1: Writing X server authority to
> /var/run/lightdm/root/:1
> [+48.59s] DEBUG: XServer 1: Launching X Server
> [+48.59s] DEBUG: Launching process 4667: /usr/bin/X :1 -seat seat0 -auth
> /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch
> [+48.59s] DEBUG: XServer 1: Waiting for ready signal from X server :1
> [+49.41s] DEBUG: Got signal 10 from process 4667
> [+49.41s] DEBUG: XServer 1: Got signal from X server :1
> [+49.41s] DEBUG: XServer 1: Connecting to XServer :1
> [+49.41s] DEBUG: posix_spawn avoided (fd close requested) (child_setup
> specified)
> [+49.41s] DEBUG: Seat seat0: Display server ready, running session
> [+49.41s] DEBUG: Registering session with bus path
> /org/freedesktop/DisplayManager/Session0
> [+49.41s] DEBUG: posix_spawn avoided (fd close requested) (child_setup
> specified)
> [+49.41s] DEBUG: Session pid=4664: Running command /etc/X11/Xsession startlxqt
> [+49.41s] DEBUG: Creating shared data directory /var/lib/lightdm/data/florian
> [+49.41s] DEBUG: Session pid=4664: Logging to .xsession-errors
> [+49.43s] DEBUG: Activating VT 8
> [+49.43s] DEBUG: Seat seat0: Stopping greeter
> [+49.43s] DEBUG: Session pid=4630: Sending SIGTERM
> [+235.23s] DEBUG: Greeter closed communication channel
> [+235.23s] DEBUG: Session pid=4630: Exited with return value 0
> [+235.23s] DEBUG: Seat seat0: Session stopped
> [+235.23s] DEBUG: Seat seat0: Stopping display server, no sessions require it
> [+235.23s] DEBUG: Sending signal 15 to process 4610
> [+235.52s] DEBUG: Process 4610 exited with return value 0
> [+235.52s] DEBUG: XServer 0: X server stopped
> [+235.52s] DEBUG: Releasing VT 7
> [+235.52s] DEBUG: XServer 0: Removing X server authority
> /var/run/lightdm/root/:0
> [+235.52s] DEBUG: Seat seat0: Display server stopped
> [+235.52s] DEBUG: Seat seat0: Active display server stopped, starting greeter
> [+235.52s] DEBUG: Seat seat0: Creating greeter session
> [+235.52s] DEBUG: Seat seat0: Creating display server of type x
> [+235.52s] DEBUG: Using VT 7
> [+235.52s] DEBUG: Seat seat0: Starting local X display on VT 7
> [+235.52s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
> [+235.52s] DEBUG: XServer 0: Writing X server authority to
> /var/run/lightdm/root/:0
> [+235.52s] DEBUG: XServer 0: Launching X Server
> [+235.52s] DEBUG: Launching process 4862: /usr/bin/X :0 -seat seat0 -auth
> /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
> [+235.52s] DEBUG: XServer 0: Waiting for ready signal from X server :0
> [+236.02s] DEBUG: Got signal 10 from process 4862
> [+236.02s] DEBUG: XServer 0: Got signal from X server :0
> [+236.02s] DEBUG: XServer 0: Connecting to XServer :0
> [+236.02s] DEBUG: posix_spawn avoided (fd close requested) (child_setup
> specified)
> [+236.02s] DEBUG: Seat seat0: Display server ready, starting session
> authentication
> [+236.02s] DEBUG: Session pid=4873: Started with service 'lightdm-greeter',
> username 'lightdm'
> [+236.02s] DEBUG: Session pid=4873: Authentication complete with return value
> 0: Success
> [+236.02s] DEBUG: Seat seat0: Session authenticated, running command
> [+236.02s] DEBUG: Session pid=4873: Running command /usr/sbin/lightdm-gtk-
> greeter
> [+236.02s] DEBUG: Creating shared data directory /var/lib/lightdm/data/lightdm
> [+236.02s] DEBUG: Session pid=4873: Logging to
> /var/log/lightdm/seat0-greeter.log
> [+236.02s] DEBUG: Activating VT 7
> [+236.12s] DEBUG: Greeter connected version=1.26.0 api=1 resettable=false
> [+236.27s] DEBUG: Greeter start authentication
> [+236.27s] DEBUG: Session pid=4904: Started with service 'lightdm', username
> '(null)'
> [+236.27s] DEBUG: Session pid=4904: Got 1 message(s) from PAM
> [+236.27s] DEBUG: Prompt greeter with 1 message(s)
> [+386.28s] DEBUG: Greeter start authentication for florian
> [+386.28s] DEBUG: Session pid=4904: Sending SIGTERM
> [+386.29s] DEBUG: Session pid=4911: Started with service 'lightdm', username
> 'florian'
> [+386.29s] DEBUG: Session pid=4904: Terminated with signal 15
> [+386.29s] DEBUG: Session: Failed during authentication
> [+386.29s] DEBUG: Seat seat0: Session stopped
> [+386.29s] DEBUG: Session pid=4911: Got 1 message(s) from PAM
> [+386.29s] DEBUG: Prompt greeter with 1 message(s)
> [+391.03s] DEBUG: Continue authentication
> [+391.04s] DEBUG: Session pid=4911: Authentication complete with return value
> 0: Success
> [+391.04s] DEBUG: Authenticate result for user florian: Success
> [+391.04s] DEBUG: User florian authorized
> [+391.06s] DEBUG: Greeter requests session lxqt
> [+391.06s] DEBUG: Seat seat0: Returning to existing user session florian
> [+391.06s] DEBUG: Activating VT 8
> [+391.28s] DEBUG: Seat seat0: Stopping greeter
> [+391.28s] DEBUG: Session pid=4873: Sending SIGTERM
> [+391.28s] DEBUG: Session pid=4911: Exited with return value 0
> [+391.28s] DEBUG: Seat seat0: Session stopped
> [+391.29s] DEBUG: Greeter closed communication channel
> [+391.29s] DEBUG: Session pid=4873: Exited with return value 0
> [+391.29s] DEBUG: Seat seat0: Session stopped
> [+391.29s] DEBUG: Seat seat0: Stopping display server, no sessions require it
> [+391.29s] DEBUG: Sending signal 15 to process 4862
> [+391.30s] DEBUG: Process 4862 exited with return value 0
> [+391.30s] DEBUG: XServer 0: X server stopped
> [+391.30s] DEBUG: Releasing VT 7
> [+391.30s] DEBUG: XServer 0: Removing X server authority
> /var/run/lightdm/root/:0
> [+391.30s] DEBUG: Seat seat0: Display server stopped
>
>
>
>
> # cat /var/log/lightdm/x-0.log.old     # original log has already been
> overwritten, reconstructed from other run with estimated timestamp
> X.Org X Server 1.20.4
> X Protocol Version 11, Revision 0
> Build Operating System: Linux 4.19.0-12-amd64 x86_64 Debian
> Current Operating System: Linux nulldevice.lan 4.19.0-13-amd64 #1 SMP Debian
> 4.19.160-2 (2020-11-28) x86_64
> Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.0-13-amd64
> root=UUID=78517165-ff11-4b1b-b67d-a5b863d270c1 ro quiet noefi
> Build Date: 01 December 2020  05:59:57PM
> xorg-server 2:1.20.4-1+deb10u2 (https://www.debian.org/support)
> Current version of pixman: 0.36.0
>         Before reporting problems, check http://wiki.x.org
>         to make sure that you have the latest version.
> Markers: (--) probed, (**) from config file, (==) default setting,
>         (++) from command line, (!!) notice, (II) informational,
>         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Sat Dec  5 12:20:xx 2020
> (==) Using config file: "/etc/X11/xorg.conf"
> (==) Using system config directory "/usr/share/X11/xorg.conf.d"
> (II) AIGLX: Suspending AIGLX clients for VT switch
> (II) Server terminated successfully (0). Closing log file.
>
>
>
>
> # cat /var/log/lightdm/x-1.log
> X.Org X Server 1.20.4
> X Protocol Version 11, Revision 0
> Build Operating System: Linux 4.19.0-12-amd64 x86_64 Debian
> Current Operating System: Linux nulldevice.lan 4.19.0-13-amd64 #1 SMP Debian
> 4.19.160-2 (2020-11-28) x86_64
> Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.0-13-amd64
> root=UUID=78517165-ff11-4b1b-b67d-a5b863d270c1 ro quiet noefi
> Build Date: 01 December 2020  05:59:57PM
> xorg-server 2:1.20.4-1+deb10u2 (https://www.debian.org/support)
> Current version of pixman: 0.36.0
>         Before reporting problems, check http://wiki.x.org
>         to make sure that you have the latest version.
> Markers: (--) probed, (**) from config file, (==) default setting,
>         (++) from command line, (!!) notice, (II) informational,
>         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.1.log", Time: Sat Dec  5 12:21:03 2020
> (==) Using config file: "/etc/X11/xorg.conf"
> (==) Using system config directory "/usr/share/X11/xorg.conf.d"
> (II) AIGLX: Suspending AIGLX clients for VT switch
> (II) AIGLX: Suspending AIGLX clients for VT switch
> (II) AIGLX: Suspending AIGLX clients for VT switch
> (II) AIGLX: Suspending AIGLX clients for VT switch
>
>
>
>
> # cat /var/log/lightdm/x-0.log
> X.Org X Server 1.20.4
> X Protocol Version 11, Revision 0
> Build Operating System: Linux 4.19.0-12-amd64 x86_64 Debian
> Current Operating System: Linux nulldevice.lan 4.19.0-13-amd64 #1 SMP Debian
> 4.19.160-2 (2020-11-28) x86_64
> Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.0-13-amd64
> root=UUID=78517165-ff11-4b1b-b67d-a5b863d270c1 ro quiet noefi
> Build Date: 01 December 2020  05:59:57PM
> xorg-server 2:1.20.4-1+deb10u2 (https://www.debian.org/support)
> Current version of pixman: 0.36.0
>         Before reporting problems, check http://wiki.x.org
>         to make sure that you have the latest version.
> Markers: (--) probed, (**) from config file, (==) default setting,
>         (++) from command line, (!!) notice, (II) informational,
>         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Sat Dec  5 12:24:09 2020
> (==) Using config file: "/etc/X11/xorg.conf"
> (==) Using system config directory "/usr/share/X11/xorg.conf.d"
> (II) AIGLX: Suspending AIGLX clients for VT switch
> (II) Server terminated successfully (0). Closing log file.
>
>
>
>
> # cat /var/log/lightdm/seat0-greeter.log.old
> ** (process:4630): WARNING **: 12:20:14.842: Failed to open CK session:
> GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name
> org.freedesktop.ConsoleKit was not provided by any .service files
> ** Message: 12:20:14.878: Starting lightdm-gtk-greeter 2.0.6 (Dec 27 2018,
> 16:15:47)
> ** Message: 12:20:14.878: [Configuration] Reading file:
> /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf
> ** Message: 12:20:14.879: [Configuration] Reading file: /etc/lightdm/lightdm-
> gtk-greeter.conf
> libGL error: failed to open drm device: Permission denied
> libGL error: failed to load driver: i965
>
> ** (lightdm-gtk-greeter:4633): WARNING **: 12:20:14.980: [PIDs] Failed to
> execute command: upstart
>
> (lightdm-gtk-greeter:4633): Gtk-WARNING **: 12:20:15.126: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> ** (lightdm-gtk-greeter:4633): WARNING **: 12:20:58.528: 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
>
> (lightdm-gtk-greeter:4633): Gtk-WARNING **: 12:21:00.064: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4633): Gtk-WARNING **: 12:21:03.015: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4633): Gtk-WARNING **: 12:21:03.046: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4633): Gtk-WARNING **: 12:24:09.537: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> ** (lightdm-gtk-greeter:4633): WARNING **: 12:24:09.541: [PIDs] Failed to
> terminate process #4656: No such process
>
>
>
>
> # cat /var/log/lightdm/seat0-greeter.log
> ** (process:4873): WARNING **: 12:24:10.470: Failed to open CK session:
> GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name
> org.freedesktop.ConsoleKit was not provided by any .service files
> ** Message: 12:24:10.488: Starting lightdm-gtk-greeter 2.0.6 (Dec 27 2018,
> 16:15:47)
> ** Message: 12:24:10.489: [Configuration] Reading file:
> /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf
> ** Message: 12:24:10.489: [Configuration] Reading file: /etc/lightdm/lightdm-
> gtk-greeter.conf
> libGL error: failed to open drm device: Permission denied
> libGL error: failed to load driver: i965
>
> ** (lightdm-gtk-greeter:4876): WARNING **: 12:24:10.584: [PIDs] Failed to
> execute command: upstart
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:24:10.730: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:25:00.676: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:25:02.375: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:25:03.881: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:26:00.756: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> ** (lightdm-gtk-greeter:4876): WARNING **: 12:26:40.728: 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
>
> (lightdm-gtk-greeter:4876): Gtk-WARNING **: 12:26:45.487: Drawing a gadget with
> negative dimensions. Did you forget to allocate a size? (node menubar owner
> GreeterMenuBar)
>
> ** (lightdm-gtk-greeter:4876): WARNING **: 12:26:45.723: [PIDs] Failed to
> terminate process #4899: No such process
>
>
>
>
> -- System Information:
> Distributor ID: Devuan
> Description:    Devuan GNU/Linux 3 (beowulf)
> Release:        3
> Codename:       beowulf
> Architecture: x86_64
>
> Kernel: Linux 4.19.0-13-amd64 (SMP w/4 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: sysvinit (via /sbin/init)
> LSM: AppArmor: enabled
>
> Versions of packages lightdm depends on:
> ii  adduser                                3.118
> ii  dbus                                   1.12.20-0+deb10u1+devuan1
> ii  debconf [debconf-2.0]                  1.5.71
> ii  libaudit1                              1:2.8.4-3
> ii  libc6                                  2.28-10
> ii  libgcrypt20                            1.8.4-5
> ii  libglib2.0-0                           2.58.3-2+deb10u2
> ii  libpam-elogind [logind]                241.4-2
> ii  libpam0g                               1.3.1-5
> ii  libxcb1                                1.13.1-2
> ii  libxdmcp6                              1:1.1.2-3
> ii  lightdm-gtk-greeter [lightdm-greeter]  2.0.6-1
> ii  lsb-base                               10.2019051400
>
> Versions of packages lightdm recommends:
> ii  xserver-xorg  1:7.7+19
>
> Versions of packages lightdm suggests:
> pn  accountsservice  <none>
> ii  upower           1:0.9.23-2+devuan1.3
> pn  xserver-xephyr   <none>
>
> -- debconf information:
> * shared/default-x-display-manager: lightdm
>   lightdm/daemon_name: /usr/sbin/lightdm