Additional information : This problem occurs with the default driver : i.e. x.Org X server.
My graphical is NVIDIA EN6600 silencer. So I tested the additional drivers : version 304.117 from nvidia-304 (proprietary, tested) version 173.14.39 from nvidia-173 (proprietary) version 304.117 from nvidia-304-updates (proprietary) x.Org X server --- Then the behaviour is slightly different. With 173 - only one monitor appears. Probably a driver with no dual monitor. So I stayed with the recommanded [ nvidia-304 (proprietary, tested) ] ; I have got the green line. Now I can disable only one monitor. But that's the one declared as primary one ( LG 20" ). Other remark - for the NVIDIA application. The button "apply" does not apply. Once the configuration is saved, a reboot is required. Then X configuration eventually applies. My config might explore the unusual cases. LG monitor 1600x1200 horizontal + NEC 1680x1050 Vertical. Ubuntu+Unity perfectly manages this setup - except for the slowness and the ongoing xorg crashes. With Lubuntu/LXDE no crash ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1364159 Title: lubuntu - display settings - monitor unselection not saved To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-default-settings/+bug/1364159/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
