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After I finished working, I made the usual update that ubuntu every now and then ask to do. Please notice is update, I'm not upgrading the distro. After it finished, it asked for a reboot which I did. Boom, it won't restart on graphical mode. The XFCE window appears for a very short time, and then everything goes black and I get a console logging. I cannot start the lightdm, it just switches session to the 7th and stands there, waiting.

Where can I start looking for what went wrong? I already started to make a backup, but I really don't want to have to resintall everything...

cauchi
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  • Please improve your question to add some more information on your system. This is possibly an issue with your graphics drivers, and not `lightdm` or `xfce` per se. See http://askubuntu.com/questions/400044/nvidia-x-server-flickers-hangs-and-segfaults-on-start-up to get an idea of what kind of information would be useful. – landroni Jan 15 '14 at 21:22

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If you've recently done a fresh install, you may want to try installing current video drivers. 

sudo apt-get install nvidia-current

If you continue to experience the same issue, try reinstalling xorg

sudo apt-get remove xserver-xorg
sudo rm ~/.config/monitors.xml //if this still exists
sudo apt-get install xserver-xorg

Then reboot.

I was booting to a black screen despite everything working last night. I went through these steps and my issue is resolved.

mabramo
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