Le jeudi 21 juin 2012, Slávek Banko a écrit :

> > Slávek Banko wrote:
> 
> Ha, I not thought that KDE4 applications could have a version number 3.x.
> Yes, it seems to me that the problem is probably elsewhere.

Hi,

I would just like to point out that the problem is only with kdesudo, and not with sudo. It is as if kdesudo does not know where to look to check my password. As you have certainly noticed, my knowledge of informatics is minimal. I get along as long as things are straightforward and simple. Oneiric TDE is my main system for all my private files and professional work, so I need it to work...
I did not manage to remove the (non-trinity) kdesudo package because of dependencies, but i renamed it old_kdesu. 
> 
> How do you set /etc/sudoers (or /etc/sudoers.d/)? On the test machine I have 
> my account in the group "sudo", and there to me it works.
> 
> Slavek

I did not set anything in those files. I am the only user (marco) on my linux machine. 

The  etc/sudoers.d  directory contains only the standard README file.

Here are the contents of the /etc/sudoers file : 

++++++++++++++++++++++++++
marco@Blacknight:/etc$ sudo cat sudoers
[sudo] password for marco:
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults        env_reset

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

#includedir /etc/sudoers.d
+++++++++++++++++++++++++++++++++


If i need to do something to this file, please be specific. 

Thanks again

Marco