I have an Asus 22" widescreen monitor with resolution: 1680x1050, and another Samsung 19" with resolution: 1280*1024. I use my Asus as primary display, and want to use my Samsung monitor as streched desktop, but when I activate the secondary display, it works only in twinview mode (it works correct). But when I try to use it in separate X mode, in different resolution, all the things (Unity launcher, gnome panel (top bar), and window borders) missing. If I restart the system (only reset works) the login screen appears, but can't login, because the loginscreen freezes after typing password and hitting enter. I can login with Ubuntu 2D. Without closed nVidia drivers the extended desktop mode works correct (under display menu). Is there any way to make it work? What did i wrong? I'm using nVidia 9600GT in my system, with Ubuntu 11.10.
Thanks in advance.