UbuntuTweak cannot go to the desktop after Ubuntu is cleared

After a software setting is cleared with javastutweak, start Ubuntu12.04 to enter the graphic interface. screen tip: TheGDMuser & amp; #39; gestation & amp; #39; doesnotexist. pleasecorrectgdmconfigrationandrestarttpd. from the Internet, we can see that the problem is that the system's user settings for the target group are cleared. gmtis GnomeDisplay

After a software setting is cleared with Ubuntu Tweak, The GUI cannot be entered when Ubuntu 12.04 is started. The screen prompt is: The running of The running agent.

From the Internet, we can see that the problem is that the system's user settings for the target group are cleared. The system uses the Gnome Display Manager, which is not the core of the graphic Display. You can still use startx to open the graphic interface. Press F2

Enter startx to enter the graphic desktop. What to do after is to enter the new establishment, search for MCM, find the gdm-2.20 mark after installation restart can be!

During installation

The above methods have been learned from the Internet after I encountered the same problem. The goal is to let the brothers who encountered the same problem intuitively see the solution, because the method on the internet is messy. In addition, there is also a way to solve the problem by using commands on the terminal after entering the desktop, but I think it is too complicated and I think it should be done in a simple way. What Linux requires is not just security, easier!