KDE is broken after upgrade

[Aleksey Midenkov]

After upgrade Ubuntu to 19.04 KDE doesn't start, just blank screen freeze.
When starting KDevelop from lxde it freezes also and slowly floods the
following in terminal:
```
org.kde.solid.udisks2: Error getting props:
"org.freedesktop.DBus.Error.NoReply" "Did not receive a reply. Possible
causes include: the remote application did not send a reply, the message
bus security policy blocked the reply, the reply timeout expired, or the
network connection was broken."
org.kde.solid.udisks2: Error getting props:
"org.freedesktop.DBus.Error.NoReply" "Did not receive a reply. Possible
causes include: the remote application did not send a reply, the message
bus security policy blocked the reply, the reply timeout expired, or the
network connection was broken."
org.kde.solid.udisks2: Error getting props:
"org.freedesktop.DBus.Error.NoReply" "Did not receive a reply. Possible
causes include: the remote application did not send a reply, the message
bus security policy blocked the reply, the reply timeout expired, or the
network connection was broken."
...
```

After ~10 minutes it finally started:
```
org.kde.solid.udisks2: Error getting props:
"org.freedesktop.DBus.Error.NoReply" "Did not receive a reply. Possible
causes include: the remote application did not send a reply, the message
bus security policy blocked the reply, the reply timeout expired, or the
network connection was broken."
kdeinit5: preparing to launch
'/usr/lib/x86_64-linux-gnu/libexec/kf5/klauncher'
kdeinit5: Launched KLauncher, pid = 29609, result = 0
Connecting to deprecated signal
QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kdeinit5: opened connection to :0.0
kdeinit5: Got EXEC_NEW
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/man.so' from launcher.
kdeinit5: preparing to launch
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/man.so'
log_kio_man: STARTING
kdeinit5: Got EXEC_NEW
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher.
kdeinit5: preparing to launch
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
log_kio_man: QUrl("man://")
kdeinit5: Got EXEC_NEW
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher.
kdeinit5: preparing to launch
'/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
log_kio_man: After if
log_kio_man: After if
log_kio_man: After if
...
```

-- 
All the best,

Aleksey Midenkov
@midenok
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