Bith systems connected with KVM. When system2 is running the screen on system 1 (when switching to it with the kvm) lines are scrolling fromj top to bottom of screen. When I removed the VGA cable from system2 the libes stopped. I tried different resolution and refresh rate and the same lines appeared.
I heard there was some filters available when using LCD screen, would tagt help? ALso, could it be video card related, now system2 is working fine and there's no problem with the VC.