Hello,
When I start "kaddressbook" by a terminal window or by the graphic incon of KDE (4.13.3) no panel is displayed. For example with a terminal session I obtain immediately a new Linux prompt but nothing more. Where can I find a log to debug ?
2 tries:
1 - With "kcclient" all seems ok.
2 - If I start "sudo kaddressbook" I obtain an error message saying that the uid of the datafile is not correct (of course) but a default panel is displayed.
Has somebody any idea ?
Thanks

You can try enabling kaddressbook debug output by running "kdebugdialog" and writing "kaddressbook" in the search box, followed by ticking its name (don't forget to untick "disable all debug output") and clicking on OK, then running it in the terminal.

Other sources of possible information are in ~/.xsession-errors.

Thanks for your answer. None of both .xsession-errors and xsession-errors.old are documented after invoking "kaddressbook" grafically or by line command. However when I use the second method, the following message is displayed before return prompt:
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
When I select "kaddressbook" in the kdebugdialog box and I try "kaddressbook", nothing appears except "QDBusConnection ..." message.

Ok, let's go for plan B. Close KAddresbook, open a terminal and write "akonadictl restart". Then try to open KAddressbook again. Some output should be written to the terminal where you typed that command. See if there's anything pertaining KAddressbook after you launched it.

Hello,
I have restarted akonadi as you say. All seems ok. Last of the 3 messages about kaddressbook is :
Akonadi::Server::NotificationManager(0x99965a8) "kaddressbook_2338_15og0p" true
Database "akonadi" opened using driver "QMYSQL"
Thanks for your help
Pierre

If you're knowledgeable enough you can try using "strace" to see if there's something going on when kaddressbook starts:

strace -p $(pidof kaddressbook)

I have started strace then typed in "kaddressbook". Every 3 seconds a series of messages is displayed:
poll([{fd=3, events=POLLIN}, {fd=8, events=POLLIN}, {fd=7, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}], 7, -1) = 1 ([{fd=7, revents=POLLIN}])
recvmsg(7, {msg_name(0)=NULL, msg_iov(1)=[{"\34\0Z\4\271\2\0\0002\1\0\0\2263\t\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(7, 0xbfd4fb84, 0) = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(7, 0xbfd4fa84, 0) = -1 EAGAIN (Resource temporarily unavailable)
It is looping and never ending.
Pierre

Hello,
I have applied new patches to Kde and the problem was resolved. My addressbook is now accessible. Thank you very much for your help einar. Topic can be closed.
Pierre