openSUSE 13.1 Clean install random logout

Hi,
I am user of openSUSE since ver 12.3 but currently i am using clean installation of openSUSE 13.1 x64. I have random logouts during for example browsing internet through Firefox or using konsole etc.
My config is:
AMD x4 740
AMD HD7750 running fglrx not open radeon driver.

Here are my Xorg.logs:
Xorg.0: http://paste.opensuse.org/6021834
Xorg.0.log: http://paste.opensuse.org/62131989