A lil background on this issue:

I am a LM KDE refugee. I decided to move to neon after LM announced they wouldn't have a KDE flavor anymore and SDDM started crashing on my system. This would mainly happen when I connect remotely via Teamviewer.

I decided to install a fresh copy of KDE Neon in my root partition. The home partition was left intact as I want to keep all my data.

Everything seems to work correctly when I am not connected to this machine remotely. However a few mins after I initiate a remote connection, the display manager dies. I can't reconnect via TV anymore and if someone is in front of the machine this is what shows up:



All open apps are closed automatically and any unsaved data is lost. What is interesting is that when I migrated to KDE Neon what seems to also happen is:

1. TV loses connection
2. SDDM stops/crashes
3. When I come back to inspect the machine it is suspended?

Below are Journald Logs from KSystemlog. Can anyone spot anything that is causing the display manager to die and trigger suspend?

Thank you in advance!

KDE Version:
Neon 5.12

Uname -a Output:

Code: Select all

Linux acer 4.13.0-38-generic #43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


Plasma Info:

Code: Select all

plasmashell 5.12.4
Qt: 5.10.0
KDE Frameworks: 5.44.0
kf5-config: 1.0

KSystemLog data:

Code: Select all

4/11/18 3:10 PM   org.kde.ActivityManager   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   org.a11y.atspi.Registry   XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
4/11/18 3:10 PM   org.a11y.atspi.Registry         after 31425 requests (31425 known processed) with 0 events remaining.
4/11/18 3:10 PM   org.kde.kuiserver   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   org.kde.runners.baloo   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   org.kde.kglobalaccel   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   com.teamviewer.TeamViewer.Desktop   terminate called without an active exception
4/11/18 3:10 PM   org.kde.KScreen   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   org.kde.kdeconnect   The X11 connection broke (error 1). Did the X11 server die?
4/11/18 3:10 PM   bluetoothd   Endpoint unregistered: sender=:1.221 path=/MediaEndpoint/A2DPSource
4/11/18 3:10 PM   bluetoothd   Endpoint unregistered: sender=:1.221 path=/MediaEndpoint/A2DPSink
4/11/18 3:10 PM   polkitd(authority=local)   Unregistered Authentication Agent for unix-session:15 (system bus name :1.214, object path /org/kde/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
4/11/18 3:10 PM   sddm   Display server stopped.
4/11/18 3:10 PM   sddm   Running display stop script  "/usr/share/sddm/scripts/Xstop"
4/11/18 3:10 PM   org.gtk.vfs.Daemon   A connection to the bus can't be made
4/11/18 3:10 PM   sddm   Socket server stopping...
4/11/18 3:10 PM   sddm   Socket server stopped.
4/11/18 3:10 PM   sddm   Removing display ":0" ...
4/11/18 3:10 PM   sddm   Adding new display on vt 7 ...
4/11/18 3:10 PM   sddm   Loading theme configuration from ""
4/11/18 3:10 PM   sddm   Display server starting...
4/11/18 3:10 PM   sddm   Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{f0d0c232-d94c-4982-96fa-f5bee4025bdc} -background none -noreset -displayfd 18 -seat seat0 vt7
4/11/18 3:10 PM   pulseaudio   [pulseaudio] client-conf-x11.c: xcb_connection_has_error() returned true
4/11/18 3:10 PM   rtkit-daemon   Successfully made thread 3384 of process 3384 (n/a) owned by '1000' high priority at nice level -11.
4/11/18 3:10 PM   rtkit-daemon   Supervising 1 threads of 1 processes of 1 users.
4/11/18 3:10 PM   pulseaudio   [pulseaudio] pid.c: Stale PID file, overwriting.
4/11/18 3:10 PM   pulseaudio   [pulseaudio] module-ladspa-sink.c: Master sink not found
4/11/18 3:10 PM   pulseaudio   [pulseaudio] module.c: Failed to load module "module-ladspa-sink" (argument: "sink_name=ladspa_output.mbeq_1197.mbeq master=alsa_output.pci-0000_00_14.2.analog-stereo plugin=mbeq_1197 label=mbeq control=4.8,4.8,4.8,3.1,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,2.5,4.8"): initialization failed.
4/11/18 3:10 PM   pulseaudio   [pulseaudio] main.c: Module load failed.
4/11/18 3:10 PM   pulseaudio   [pulseaudio] main.c: Failed to initialize daemon.
4/11/18 3:10 PM   org.kde.ActivityManager   Closing SQL connection:  "kactivities_db_resources_139833830283456_readwrite"
4/11/18 3:10 PM   pulseaudio   [pulseaudio] main.c: Daemon startup failed.
4/11/18 3:10 PM   sddm   Setting default cursor
4/11/18 3:10 PM   sddm-helper   [PAM] Closing session
4/11/18 3:10 PM   sddm-helper   pam_unix(sddm:session): session closed for user ivan
4/11/18 3:10 PM   sddm   Running display setup script  "/usr/share/sddm/scripts/Xsetup"
4/11/18 3:10 PM   sddm-helper   pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_close_session
4/11/18 3:10 PM   sddm-helper   pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
4/11/18 3:10 PM   sddm-helper   [PAM] Ended.
4/11/18 3:10 PM   sddm   Display server started.
4/11/18 3:10 PM   sddm   Socket server starting...
4/11/18 3:10 PM   sddm   Socket server started.
4/11/18 3:10 PM   sddm   Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
4/11/18 3:10 PM   sddm   Greeter starting...
4/11/18 3:10 PM   sddm   Adding cookie to "/var/run/sddm/{f0d0c232-d94c-4982-96fa-f5bee4025bdc}"
4/11/18 3:10 PM   systemd   Stopping Session 15 of user ivan.
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0665] device (wlp2s0): state change: activated -> deactivating (reason 'connection-removed') [100 110 38]
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0669] manager: NetworkManager state is now DISCONNECTING
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0776] device (wlp2s0): state change: deactivating -> disconnected (reason 'connection-removed') [110 30 38]
4/11/18 3:10 PM   avahi-daemon   Withdrawing address record for fe80::3d6e:ee2e:1fa3:5c3c on wlp2s0.
4/11/18 3:10 PM   avahi-daemon   Leaving mDNS multicast group on interface wlp2s0.IPv6 with address fe80::3d6e:ee2e:1fa3:5c3c.
4/11/18 3:10 PM   avahi-daemon   Interface wlp2s0.IPv6 no longer relevant for mDNS.
4/11/18 3:10 PM   sddm-helper   [PAM] Starting...
4/11/18 3:10 PM   sddm-helper   [PAM] Authenticating...
4/11/18 3:10 PM   sddm-helper   [PAM] returning.
4/11/18 3:10 PM   sddm   QProcess: Destroyed while process ("/usr/lib/x86_64-linux-gnu/sddm/sddm-helper") is still running.
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0947] dhcp4 (wlp2s0): canceled DHCP transaction, DHCP client pid 19829
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0948] dhcp4 (wlp2s0): state changed bound -> done
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.0972] dns-mgr: Writing DNS information to /sbin/resolvconf
4/11/18 3:10 PM   kernel   wlp2s0: deauthenticating from 70:3a:cb:d6:11:b6 by local choice (Reason: 3=DEAUTH_LEAVING)
4/11/18 3:10 PM   avahi-daemon   Withdrawing address record for 192.168.86.20 on wlp2s0.
4/11/18 3:10 PM   avahi-daemon   Leaving mDNS multicast group on interface wlp2s0.IPv4 with address 192.168.86.20.
4/11/18 3:10 PM   dnsmasq   setting upstream servers from DBus
4/11/18 3:10 PM   systemd   Created slice User Slice of sddm.
4/11/18 3:10 PM   systemd   Starting User Manager for UID 118...
4/11/18 3:10 PM   systemd-logind   New session 30 of user sddm.
4/11/18 3:10 PM   systemd   Started Session 30 of user sddm.
4/11/18 3:10 PM   systemd   pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
4/11/18 3:10 PM   systemd   Reached target Timers.
4/11/18 3:10 PM   systemd   Reached target Paths.
4/11/18 3:10 PM   systemd   Reached target Sockets.
4/11/18 3:10 PM   systemd   Reached target Basic System.
4/11/18 3:10 PM   systemd   Reached target Default.
4/11/18 3:10 PM   systemd   Startup finished in 48ms.
4/11/18 3:10 PM   systemd   Started User Manager for UID 118.
4/11/18 3:10 PM   sddm-helper   pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
4/11/18 3:10 PM   sddm-helper   pam_systemd(sddm-greeter:session): Cannot create session: Already running in a session
4/11/18 3:10 PM   sddm   Greeter session started successfully
4/11/18 3:10 PM   sddm-greeter   High-DPI autoscaling not Enabled
4/11/18 3:10 PM   sddm-greeter   Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
4/11/18 3:10 PM   sddm-greeter   Reading from "/usr/share/xsessions/gnome.desktop"
4/11/18 3:10 PM   sddm-greeter   Reading from "/usr/share/xsessions/plasma.desktop"
4/11/18 3:10 PM   sddm-greeter   Reading from "/usr/share/wayland-sessions/plasmawayland.desktop"
4/11/18 3:10 PM   sddm-greeter   Connected to the daemon.
4/11/18 3:10 PM   sddm   Message received from greeter: Connect
4/11/18 3:10 PM   sddm-greeter   Loading file:///usr/share/sddm/themes/breeze/Main.qml...
4/11/18 3:10 PM   avahi-daemon   Interface wlp2s0.IPv4 no longer relevant for mDNS.
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-DISCONNECTED bssid=70:3a:cb:d6:11:b6 reason=3 locally_generated=1
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.4287] manager: NetworkManager state is now DISCONNECTED
4/11/18 3:10 PM   dbus   [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
4/11/18 3:10 PM   systemd   Starting Network Manager Script Dispatcher Service...
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
4/11/18 3:10 PM   NetworkManager   <warn>  [1523484622.4402] sup-iface[0x17b66f0,wlp2s0]: connection disconnected (reason -3)
4/11/18 3:10 PM   NetworkManager   <info>  [1523484622.4413] device (wlp2s0): supplicant interface state: completed -> disconnected
4/11/18 3:10 PM   dbus   [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
4/11/18 3:10 PM   systemd   Started Network Manager Script Dispatcher Service.
4/11/18 3:10 PM   nm-dispatcher   req:1 'down' [wlp2s0]: new request (1 scripts)
4/11/18 3:10 PM   nm-dispatcher   req:1 'down' [wlp2s0]: start running ordered scripts...
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject::installEventFilter(): Cannot filter events for objects in a different thread.
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject: Cannot create children for a parent that is in a different thread.
(Parent is SDDM::GreeterApp(0x7ffc4c4f48a0), parent's thread is QThread(0x17c5930), current thread is QThread(0x197e5c0)
4/11/18 3:10 PM   sddm-greeter   QObject::installEventFilter(): Cannot filter events for objects in a different thread.
4/11/18 3:10 PM   sddm-greeter   Cannot watch QRC-like path ":/icons/hicolor/index.theme"
4/11/18 3:10 PM   sddm-greeter   Empty filename passed to function
4/11/18 3:10 PM   sddm-greeter   Adding view for "eDP" QRect(0,0 1366x768)
4/11/18 3:10 PM   sddm-greeter   Loading file:///usr/share/sddm/themes/breeze/Main.qml...
4/11/18 3:10 PM   sddm-greeter   Empty filename passed to function
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   sddm-greeter   Adding view for "VGA-0" QRect(1366,0 1920x1080)
4/11/18 3:10 PM   sddm-greeter   Loading file:///usr/share/sddm/themes/breeze/Main.qml...
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   sddm-greeter   Empty filename passed to function
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   sddm-greeter   Adding view for "HDMI-0" QRect(3286,0 1920x1080)
4/11/18 3:10 PM   systemd   Stopped Session 15 of user ivan.
4/11/18 3:10 PM   systemd-logind   Removed session 15.
4/11/18 3:10 PM   sddm-greeter   Message received from daemon: Capabilities
4/11/18 3:10 PM   sddm-greeter   Message received from daemon: HostName
4/11/18 3:10 PM   systemd   Stopping User Manager for UID 1000...
4/11/18 3:10 PM   systemd   Stopped target Default.
4/11/18 3:10 PM   systemd   Stopped target Basic System.
4/11/18 3:10 PM   systemd   Stopped target Sockets.
4/11/18 3:10 PM   systemd   Stopped target Paths.
4/11/18 3:10 PM   systemd   Stopped target Timers.
4/11/18 3:10 PM   systemd   Reached target Shutdown.
4/11/18 3:10 PM   systemd   Starting Exit the Session...
4/11/18 3:10 PM   systemd   Received SIGRTMIN+24 from PID 3501 (kill).
4/11/18 3:10 PM   systemd   pam_unix(systemd-user:session): session closed for user ivan
4/11/18 3:10 PM   systemd   Stopped User Manager for UID 1000.
4/11/18 3:10 PM   systemd   Removed slice User Slice of ivan.
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:10 PM   wpa_supplicant   wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN
4/11/18 3:17 PM   CRON   pam_unix(cron:session): session opened for user root by (uid=0)
4/11/18 3:17 PM   CRON   (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
4/11/18 3:17 PM   CRON   pam_unix(cron:session): session closed for user root
4/11/18 3:17 PM   kernel   usb 3-1: USB disconnect, device number 3
4/11/18 3:35 PM   systemd-logind   Suspending...
4/11/18 3:35 PM   NetworkManager   <info>  [1523486107.8456] manager: sleep requested (sleeping: no  enabled: yes)
4/11/18 3:35 PM   NetworkManager   <info>  [1523486107.8456] manager: sleeping...
4/11/18 3:35 PM   NetworkManager   <info>  [1523486107.8457] device (wlp2s0): state change: disconnected -> unmanaged (reason 'sleeping') [30 10 37]
4/11/18 3:35 PM   NetworkManager   <info>  [1523486107.8748] device (enp1s0): state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
4/11/18 3:35 PM   wpa_supplicant   nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
4/11/18 3:35 PM   NetworkManager   <info>  [1523486107.9087] manager: NetworkManager state is now ASLEEP
4/11/18 3:35 PM   systemd   Reached target Sleep.
4/11/18 3:35 PM   systemd   Starting Suspend...
4/11/18 3:35 PM   systemd-sleep   Failed to connect to non-global ctrl_ifname: (nil)  error: No such file or directory
4/11/18 3:35 PM   systemd-sleep   /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
4/11/18 3:35 PM   systemd-sleep   Suspending system...


OK, this seems to be related to Teamviewer version 13.1.3026 - I uninstalled that version and rolled back to v. 12.0.93330

All SDDM crashing went away. Anyone else experienced something similar with KDE Neon and Teamviewer?