Hi Orlando, > Try to set the "virdual screen" in duble size orizontal. In others words, if > your screen mode is set to 800x600, set the virtual to 1600x600. That has > worked for me, using 2 nvidia. Later I have buyed a dual card. :) same > problem, but, changing the virtual has solved the problem. :) Thanks for the suggestion but it does not seem to help. When I start with this: Section "ServerLayout" Identifier "Xine" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" Option "Xinerama" "on" EndSection Then the second monitor does not even seem to pick up any signal, while it does perfectly with this: Section "ServerLayout" Identifier "Second" Screen 0 "Screen1" 0 0 EndSection Any further clues?? :-( On a side note, I found the source of the inconsistent behavior mentioned in my original post. Apparently the way it goes wrong depends on acpi paramenters on the kernel. I have tweaked with various combinations of pci=noacpi, acpi=off/on but did not get much further. Have you guys have a general suggestion for what the acpi settings on the kernel should be for best results? thanks, tamas _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86