ubuntu 16 не принимает пароль для входа

Эта проблема была решена с помощью обновлений.

decent@decent:~$ gnome-shell --version
GNOME Shell 3.1.92

decent@decent:~$ sudo apt-get install gnome-shell
[sudo] password for decent: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gnome-shell is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

decent@decent:~$ uname -a
Linux decent 3.0.0-11-generic #18-Ubuntu SMP Tue Sep 13 23:38:01 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

decent@decent:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu oneiric (development branch)
Release:    11.10
Codename:   oneiric
decent@decent:~$