About the X-Swat PPA
Installing packages from the Ubuntu X-Swat PPA should help fix this problem. It provides newer versions of X.org components, including some drivers.
Before enabling this or any other PPA, you should familiarize yourself with the possible risks of using PPA's:
In this case, the potential security risk can probably be considered very minimal, since this PPA is owned by the same team that is in charge of officially packaged X.org in Ubuntu. While considered stable upstream, it's possible that you may have some stability or usability problems with these packages...but you're already having serious problems, so it's worth it to use the PPA.
Enabling the PPA and Upgrading Your Packages
Open a Terminal window (Ctrl+Alt+F2) and run these commands:
sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current
Reboot. Then open Nvidia X Server Settings:
- You're using Lubuntu, so you'll probably find it in LXDE Menu > Preferences.
- If you were running vanilla Ubuntu (with Unity / Unity 2D0, you could search for
nvidia x server settings in the Unity dash.
You can use this utility to configure the display as you wish.
Source: http://www.noobslab.com/2011/09/nvidia-drivers-for-ubuntu-1110-oneiric.html (by "Umair")