Multiple Monitors aren't working properly

Hello!

So, I use 2 monitors (DVI-0, VGA-0) at openSUSE 12.3 with opensource Radeon driver. I haven’t installed any other versions of packages, just use stable version. In general, monitors works fine after plug-in in a working KDE. But if I reboot, I will see an incorrect-picture with a stripes on VGA-0 after choosing openSUSE Grub menu entry. Also, I used to add to the kernel parameters “vga=0x31b”, but it still the same. So If I want to work my second monitor, I always have to switch-off cable in VGA-0 while system is booting and then switch on.

I suppose there is something wrong with KMS ? Please help.

Thank you all.