Problems with login after starting laptop

[Danijel]

Problems with login after starting laptop - it shows only black screen with cursor.
After restart lightdm service it shows login screen and then works normaly.
This laptop has only 250 GB SSD disk.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: lightdm 1.2.3-0ubuntu2.4
ProcVersionSignature: Ubuntu 3.5.0-49.73~precise1-generic 3.5.7.32
Uname: Linux 3.5.0-49-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Wed Apr 30 09:10:03 2014
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
MarkForUpload: True
ProcEnviron:
 LC_TIME=en_GB.UTF-8
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)