2 monitors on X-server can't login afer black-out

I have 2-monitors on a nvidia geforce 8600.
I had configured my system(an old quad intel-gigabyte) to boot from screen number 2 and make login to screen n. 1(that means 2 screens non identical,but one right and the other left)configuration made by nvidia-Xserver application with the root account.
After a small black-out i lost my settings and i can not make visible the login screen.

I tried to make login like root(in the dark) and to go in init 1,in the older versions of suse boot screen you could use parameters at boot time(p.e. init 1,3,e.t.c.),NOW?

My 2 screens work fine(test them on windows server2008 and suseDVD).
But i am not sure about my graphic card and my motherboard,the last after hard-reseting the CMOS it boots again in the second screen,like always.

openSUSE 13.1x64 KDE

Any ideas?
Thank you