Hello

I have KDE5 installed on Ubuntu 14.04LTS, but when I try use it doesn't work, I can see the load progress and when it reaches 80%, the progress stop, I can only use the TTY to work with the system, I don't know what happens but I can help you to find the answer

Here is the link for Syslog: http://pastebin.com/C6wpVLVg

Thx.