Black screen after KDE 5 logo (with log)

[Dâniel Fraga]

	I compiled and installed KDE 5 (Frameworks 5.28.0 and Plasma
5.8.4) from scratch succesfuly, but after the SDDM login, there's only
a black screen with a cursor.

	If I start xterm from the console, it appears. What's
interesting is that I can start fine KDE 4 from the SDDM (only KDE 5
shows this problem, so my conclusion is that the X and graphics setup
are fine). I tried to run plasmashell from the console and nothing
happens:

Here's the log:

Failed to connect to bus: No such file or directory
Loading stage  "initial" 587
startkde: Starting up...
kdeinit5: preparing to launch '/usr/local/kde5/lib/libexec/kf5/klauncher'
kdeinit5: Launched KLauncher, pid = 797, result = 0
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kdeinit5: opened connection to :0.0
kdeinit5: preparing to launch 'libkdeinit5_kded5'
kdeinit5: Launched KDED, pid = 801 result = 0
kdeinit5: preparing to launch 'libkdeinit5_kcminit_startup'
kdeinit5: Launched 'kcminit_startup', pid = 802 result = 0
kdeinit5: Got SETENV 'KDE_MULTIHEAD=false' from launcher.
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/solidautoeject.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/freespacenotifier.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/bluedevil.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/ksysguard.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/baloosearchmodule.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/proxyscout.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/remotedirnotify.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/desktopnotifier.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/ktimezoned.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/device_automounter.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/keyboard.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/statusnotifierwatcher.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/soliduiserver.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/kscreen.so"
kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/local/kde5/lib/plugins/kf5/kded/networkstatus.so"
Initializing  "kcm_access" :  "kcminit_access"
kdeinit5: Got EXEC_NEW '/usr/local/kde/bin/kaccess' from launcher.
kdeinit5: preparing to launch '/usr/local/kde/bin/kaccess'
Initializing  "kcm_style" :  "kcminit_style"
kdeinit5: Got EXEC_NEW '/usr/local/kde5/lib/libexec/kf5/kconf_update' from launcher.
kdeinit5: preparing to launch '/usr/local/kde5/lib/libexec/kf5/kconf_update'
kf5.kcoreaddons.kaboutdata: Could not initialize the equivalent properties of Q*Application: no instance (yet) existing.
kdeinit5: PID 814 terminated.
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
kdeinit5: PID 810 terminated.
detected kglobalaccel restarting, re-registering all shortcut keys
kdeinit5: Got SETENV 'GTK_RC_FILES=/etc/gtk/gtkrc:/home/fraga/.gtkrc:/home/fraga/.config/gtkrc' from launcher.
kdeinit5: Got SETENV 'GTK2_RC_FILES=/etc/gtk-2.0/gtkrc:/home/fraga/.gtkrc-2.0:/home/fraga/.config/gtkrc-2.0' from launcher.
kscreen.kded: Config KScreen::Config(0x1dff110) is ready
kscreen.kded: UPower not available, lid detection won't work
kscreen.kded: "The name org.freedesktop.UDisks2 was not provided by any .service files"
kscreen.kded: PowerDevil SuspendSession action not available!
kscreen.kded: "The name org.kde.Solid.PowerManagement was not provided by any .service files"
kscreen.kded: Couldn't get if the device is a laptop:  "The name org.freedesktop.UPower was not provided by any .service files"
Initializing  "kcm_input" :  "kcminit_mouse"
Initializing  "kded_touchpad" :  "kcminit_touchpad"
No such schema “org.gnome.desktop.a11y.applications”
kdeinit5: PID 802 terminated.
kdeinit5: Got KWRAPPER '/usr/local/kde5/bin/ksmserver' from wrapper.
kdeinit5: preparing to launch '/usr/local/kde5/bin/ksmserver'
Qt: Session management error: networkIdsList argument is NULL
Configuring Lock Action
_IceTransmkdir: ERROR: euid != 0,directory /tmp/.ICE-unix will not be created.
ksmserver: "/run/user/501/KSMserver"
kdeinit5: Got SETENV 'SESSION_MANAGER=local/tux.abusar.org.br:@/tmp/.ICE-unix/833,unix/tux.abusar.org.br:/tmp/.ICE-unix/833' from launcher.
ksmserver: KSMServer: SetAProc_loc: conn  0 , prot= local , file= @/tmp/.ICE-unix/833
ksmserver: KSMServer: SetAProc_loc: conn  1 , prot= unix , file= /tmp/.ICE-unix/833
ksmserver: KSMServer::restoreSession  "saved at previous logout"
ksmserver: Autostart 0 done
ksmserver: Kcminit phase 1 done
ksmserver: Autostart 1 done
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
BluezQt: Cannot open /dev/rfkill for reading!
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find "mtp"
bluedevil: Created
realPath called with a relative path 'etc/xdg/./', please fix
realPath called with a relative path 'etc/xdg/config/', please fix
Trying to convert empty KLocalizedString to QString.
Trying to convert empty KLocalizedString to QString.
Trying to convert empty KLocalizedString to QString.
org.kde.kcm_keyboard: Failed to open layout memory xml file for reading "/home/fraga/.local/share/kded5/keyboard/session/layout_memory.xml" error: 5
kf5.kded: found kded module "touchpad" by prepending 'kded_' to the library path, please fix your metadata.
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
Failed enumerating UDisks2 objects: "org.freedesktop.DBus.Error.ServiceUnknown" 
 "The name org.freedesktop.UDisks2 was not provided by any .service files"
bluedevil: Bluetooth operational changed false
bluedevil: ObexManager operational changed false
BluezQt: PendingCall Error: "Process org.bluez.obex exited with status 1"
BluezQt: PendingCall Error: "Launch helper exited with unknown return code 1"
ksmserver: Starting notification thread
ksmserver: Kcminit phase 2 done
ksmserver: Starting autostart service  "/home/fraga/.config/autostart/IRkick.desktop"
ksmserver: Starting autostart service  "/home/fraga/.config/autostart/KNut client.desktop"
ksmserver: Starting autostart service  "/home/fraga/.config/autostart/wakoopa.desktop"
ksmserver: Starting autostart service  "/etc/xdg/autostart/wicd-tray.desktop"
ksmserver: Autostart 2 done
kwin_xkbcommon: XKB: couldn't find a Compose file for locale "en_US.UTF-8"

ksmserver: autostart service "/usr/bin/wicd-gtk" finished with exit
code  1
completeShutdownOrCheckpoint called
OpenGL vendor string:                   Intel Open Source Technology Center
OpenGL renderer string:                 Mesa DRI Intel(R) Haswell Mobile 
OpenGL version string:                  3.0 Mesa 13.0.2 (git-3a9f628)
OpenGL shading language version string: 1.30
Driver:                                 Intel
GPU class:                              Haswell
OpenGL version:                         3.0
GLSL version:                           1.30
Mesa version:                           13.0.2
X server version:                       1.19
Linux kernel version:                   4.8.13
Requires strict binding:                yes
GLSL shaders:                           yes
Texture NPOT support:                   yes
Virtual Machine:                        no
QXcbConnection: XCB error: 3 (BadWindow), sequence: 15189, resource id: 10485787, major code: 18 (ChangeProperty), minor code: 0

	***

	Any hints? Thanks

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