Le 10/02/2018 à 09:55, Ed Greshko a écrit : > On 02/10/18 16:42, François Patte wrote: >> Le 10/02/2018 à 09:32, Ed Greshko a écrit : >>> On 02/10/18 16:12, François Patte wrote: >>>> Le 09/02/2018 à 18:46, Rick Stevens a écrit : >>>>> On 02/09/2018 08:05 AM, François Patte wrote: >>>>>> Le 09/02/2018 à 15:33, Ed Greshko a écrit : >>>>>>> On 02/09/18 22:13, François Patte wrote: >>>>>>>> Seems to be an empirical way to solve the problem! Nobody knows what is >>>>>>>> responsible for such a message (Authenticate result for user cath : >>>>>>>> User not known to the underlying authentication module)? What is this >>>>>>>> module and how to inform it that a new user was added? >>>>>>> Well, since I am the only one who has responded to your query and since >>>>>>> I only know >>>>>>> what I have found by using google, I guess nobody knows for sure what >>>>>>> is causing the >>>>>>> problem. >>>>>> Trying your trick gives the same result: once the password has been >>>>>> given, lightdm behaves like if it was a wrong password and user can't >>>>>> log! >>>>>> >>>>>>> At this point are you more interested in getting that user logged in >>>>>>> under lightdm or >>>>>>> finding out why they have been unable to? >>>>>> I am interested in both, it is quite boring that something has been done >>>>>> somewhere and messages in log files are not enough explicit to solve the >>>>>> problem.... This tends to make the system more secretive. >>>>>> >>>>>> I googled too, and find some answer related to pam, to ldap.... Nothing >>>>>> about lightdm! >>>>> Please check the system logs. It may be an issue with libcrypt (e.g. the >>>>> version desired isn't there). I've had that issue with a laptop before >>>>> where the PAM system wanted libcrypto.so.6 (which was what was >>>>> originally installed way back when) but the current version was >>>>> libcrypto.so.10. >>>> In that case wouldn't be impossible to login for all users? >>>> >>>> >>> Would you consider to try another DM? >> DM? >> > light(dm) dm=Display Manager > > You could try sddm, kdm, or gdm?
I don't want to do that: I dislike gnome or kde and do not want to introduce a lot of dependancies.... I solved the problem but I am still wondering why this issue hapenned: lightdm uses accountservice and for other users there is file /var/lib/AccountsService/users/user-name which seems to has been created by adduser when their account was created. Why, for this particular user this file was not created, I don't know! I deleted and recreated the account but this file was not created and I had to do it manually.... This file is very simple and contains: [User] Language=fr_FR.utf8 XSession=xfce SystemAccount=false That's all! Now, if anybody has a clue, I will have better nights! Thank you. -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)6 7892 5822 http://www.math-info.univ-paris5.fr/~patte
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