Comment 2 for bug 1260220

Sometimes, just after booting up, the graphical session does not start. It is a text display (in alt-f7) that ends in:

[ OK ] Reached target Graphical Interface

Photo available on request.

I add logs, including lightdm logs.

2013-10-19T13:49:07.284318+02:00 Minas-Tirith systemd[1]: Starting Graphical Interface. ******************************
2013-10-19T13:49:07.285038+02:00 Minas-Tirith systemd[1]: Reached target Graphical Interface.
2013-10-19T13:49:07.285868+02:00 Minas-Tirith systemd[1]: Starting Stop Read-Ahead Data Collection 10s After Completed Startup.
2013-10-19T13:49:07.286646+02:00 Minas-Tirith systemd[1]: Started Stop Read-Ahead Data Collection 10s After Completed Startup.
2013-10-19T13:49:07.287345+02:00 Minas-Tirith systemd[1]: Starting Update UTMP about System Runlevel Changes...
2013-10-19T13:49:07.288083+02:00 Minas-Tirith systemd[1]: Started Update UTMP about System Runlevel Changes.
2013-10-19T13:49:07.290187+02:00 Minas-Tirith systemd[1]: Startup finished in 6.182s (kernel) + 13.267s (userspace) = 19.450s.
2013-10-19T13:49:07.401875+02:00 Minas-Tirith dbus[544]: [system] Activating via systemd: service name='org.freedesktop.Accounts'
unit='accounts-daemon.service'
2013-10-19T13:49:07.414638+02:00 Minas-Tirith systemd[1]: Starting Accounts Service...
2013-10-19T13:49:07.446238+02:00 Minas-Tirith accounts-daemon[957]: started daemon version 0.6.34
2013-10-19T13:49:07.448784+02:00 Minas-Tirith dbus[544]: [system] Successfully activated service 'org.freedesktop.Accounts'
2013-10-19T13:49:07.449306+02:00 Minas-Tirith systemd[1]: Started Accounts Service.
2013-10-19T13:49:07.490808+02:00 Minas-Tirith xdm[551]: No protocol specified
2013-10-19T13:49:07.491487+02:00 Minas-Tirith xdm[551]: Error opening display! ******************************
Failure.
2013-10-19T13:49:07.494617+02:00 Minas-Tirith xdm[551]: No protocol specified
2013-10-19T13:49:07.495044+02:00 Minas-Tirith xdm[551]: /usr/bin/xrdb: Resource temporarily unavailable
2013-10-19T13:49:07.495408+02:00 Minas-Tirith xdm[551]: /usr/bin/xrdb: Can't open display ':0'
2013-10-19T13:49:07.498385+02:00 Minas-Tirith xdm[551]: No protocol specified
2013-10-19T13:49:07.498826+02:00 Minas-Tirith xdm[551]: /usr/bin/xmodmap: unable to open display ':0'
2013-10-19T13:49:07.544358+02:00 Minas-Tirith lightdm: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)

To recover, I issue init 3, init 5.

Machine is a laptop, compaq presario CQ61-330SS. Video is Intel GM45.