Hi Radu, thanks for sending the information. As far as I can see there is only one thing that i don't understand in the xorg.log, when you try to add the second monitor.:
[ 310.430] (II) NVIDIA(0): Setting mode "DFP-0:NULL,DFP-1:1920x1080@1920x1080+0+0" mine looks like this when attaching a display: [ 37938.491] (II) NVIDIA(0): "DFP-0:1680x1050@1680x1050+1920+0,DFP-1:1920x1080@1920x1080+0+0" As you can see, your DFP-0 is not configured. All other things seem to be configured correct and all packages are up to date. What I would suggest (not necessarily in this order) 1. Get rid of ALL old nvida related packages and reinstall them: Boot into save mode. See https://bugs.launchpad.net/ubuntu/+source/nvidia-settings/+bug/840462 (there #13) Delete ~/.nvidia-settings-rc and ~/.config/monitors.xml (#45) Reboot in save mode and reinstall nvidia-current and -settings. 2. You could you probably try the autoconfiguring tool Disper for nvidia cards ( https://launchpad.net/disper ) to get twinview working. On xfce you must enable an indicator message docklet to see the applet. But you can also use it from the command line (disper --help / man disper). On unity you have to add "Disper" to the list of allowed applets (dconf- editor->desktop->unity->panel). Here is the package: https://launchpad.net/~disper-dev/+archive/ppa/+files/disper_0.3.0_all.deb (you can savely uninstall it afterwards) Good luck -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/813343 Title: nvidia drivers, second monitor covered by black To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/813343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs