Ubuntu gui doesn't load

[shemeshra]

Hey all, today after i updated ubuntu base and restarted i have a problem.
After i login to unity, it seems like it doesn't load at all.. I tryed this:

dconf reset -f /org/compiz/ 
unity --reset-icons &disown

I restarted but it does nothing. I tryed to login with cinnamon, it gives me an error and wants to restart, after a couple of restarts (cinnamon) it loads, but still gives me the same error..

thx for help

UPD:
Ubuntu 13.04, just a small update

[SweetAurora]

Which Ubuntu are you using? Did you upgrade to a new release from an older one, or did you just do a simple update?

[shemeshra]

Sorry, forgot to write it.. It's 13.04, it was small update ~50mb ubuntu base.

[SweetAurora]

Do you still have access to a terminal? on the keyboard, hold ctrl+alt+t to open it and type

sudo apt-get update && sudo apt-get dist-upgrade

but on the dist-upgrade, don't push y, instead copy the output from the command, push n, and then type

firefox

in terminal to open Firefox and paste it here in a reply. Use the code tags please when doing so.

[shemeshra]

Yes, I still have access to terminal, but I don't have any dist updates, so there is no Y/N ..
Btw, i can access to gnome2-fallback and it works without any error.

[SweetAurora]

Then it's probably a graphics error. What graphics card are you using? If it's an ATI or Nvidia, how did you install the drivers?
Post the output here:

lspci | grep VGA

[shemeshra]

ATI, i've installed the driver from their website.

The lspci | grep VGA :
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Park [Mobility Radeon HD 5430/5450/5470]

[SweetAurora]

You were not supposed to do that!!! NEVER USE THE DRIVER ATI SUPPLIES ON THEIR WEBSITE!!! Because it is untested by Canonical and usually requires manually reinstalling every time you update the kernel and any graphics libraries like MESA and X.Org.

You will have to uninstall the driver you downloaded, remove the X.Org config file it likely created, then install the driver Ubuntu provides in the driver utility.
I'm not fully litterate on ATI cards and drivers so someone else will have to step in.

[shemeshra]

Thx for helping me, changed the driver and it solved the problem

[SweetAurora]

Well good! You are welcome.