On 12 February 2018 at 13:10, François Patte < francois.pa...@mi.parisdescartes.fr> wrote:
> 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! > Have you seen https://askubuntu.com/questions/139412/enabling-a-user-created-with-adduser-command-for-lightdm-graphical-login ? https://bugs.launchpad.net/lightdm/+bug/1019314 indicates that lightdm switched to using PAM via accountservice for user prefs in 2012, causing issues for scripts that were storing user prefs to ~/.dmrc. 4 years is about long enough for someone to have forgotten that lightdm has to be handled differently. Many systems have multiple ways to add a user (different GUI's as well as `adduser` versus `useradd`). Is it possible that a different tool was used for the problem user? If not, perhaps something different in that user's configuration caused the tool to use a different logic path and encounter a bug -- either never patched in 2012-2013 or recently introduced. > > 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 > > > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > > -- George N. White III
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