Hi i want to configure the Login Window under my ubuntu.
So i ve selected the Login Window, under System->Administration menu
The program starts and closes after 5 secs. I have tried to found the problem by running the program at bash and xterm.

I found that the program that runs is the

gksu /usr/sbin/gdmsetup
so at bash i run the command

a)gksu /usr/sbin/gdmsetup
b)i type the root password
c)the window opens and closes after 5 secs
d)no message returns at bash or xterm

I have also tried the command
sudo gksu /usr/sbin/gdmsetup >> temp
But the file temp is empty

So? what i am doing next? How can i check what is wrong with the specific application>?

Have had you had a look at your system logs?

No... but can u remind me how i do this?

If you use Gnome, you can use System > Admin > System Log. From the command line, you can check the files that are in /var/log.

Thx a lot
From /var/log/messages
Aug 23 23:48:25 akroneiro kernel: [ 6109.950024] gdmsetup[7307]: segfault at 00000000 eip 00000000 esp bfafc08c error 4

The same error appears at kern.log,messages and syslog under /var/log folder!! So whats next now?Seems that the program crashes cause it experienced a fatal error. I dont think if i can fix this. What i am thinking is to try remove and add back again the specific command.. but is this possible? Any other suggestions>?

I doubt that the command alone can be uninstalled, you'll probably have to reinstall all of GDM. But does it make sense? If this is a bug in the most recent version (and segfaults point to a bug), then reinstalling is not going to help. Then again, mine appears to be doing fine so I wonder what could be different. Did you upgrade against the testing branch? Did you suffer a crash that could have damaged GDM? Your guess is as good as mine.

I have edited once the login screen and i have selected one of the preselected images. I relaunched it so to change the boot screen back again to the default but the program started crashing

Hmm, in that case a reinstall of GDM may help. Make sure to erase it completely. Use synaptic if you can and check the status icon in the bottom left corner to remove any remaining configuration files. If you don't use a GUI, you'll have to use the --purge option.

Thx whats the command to remove it completely without leaving any configuration files? I use gnome as gui

sudo aptitude purge

You may want to try with the -s option if you would like to see what will happen before actually doing anything. (Read man aptitude for details).

Damn my bad luck!!!
Remove it with purge.. and installl it back... same crap happens.. so whats next?:P Reinstall everyhing?

P.S (after editing text) Well i have also turned gdm debug info.. Read all the syslog file but cant find anything useful for keep searching!!!!

Which release are you using? I remember having a similar issue when I was still using 7.10.

the latest ubuntu

Then I'm afraid that there is little else that I can suggest. If this is not the only issue that you are having - I think I saw another post by you - there may be a more structural problem. Are you sure that the install cd you used was 100% fine? Or maybe there is a hardware issue behind this all?

yes have opened and close it sonmetimes with no problem. It must be hardware problem or something like that