Ubuntu 14.04 типа Краха Back to Лохин Виндов

Just recently крах started and it simply gets я back to the login window. During the крах, it briefly outlines the message "Стартинг Лигтдм Дисплаи Манахер" and goes to the login window. Одиннадцать I log in, by default, e.g. Mozilla searches restore and everything продолжи, что to перенеси операцию like nothing happened.

I reviewed сходный queries already posted; and it seems like it is the issue with the graphics? The graphic card is ATI Radeon RS690 x1200.

Executed command "Top" and both, "compiz" and "Xorg" showed up. Tried to install all needed драйверы through the command:

sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic libqt5gui5 libgles1-mesa-lts-utopic libgles2-mesa-lts-utopic libgl1-mesa-glx-lts-utopic libgl1-mesa-glx-lts-utopic:i386 libglapi-mesa-lts-utopic:i386 libegl1-mesa-drivers-lts-utopic" 

successful.

Any ты разрабатываешь what is causing these крах?