The Linux Geeks

If you use Ubuntu 10.04 LTS or 10.10 Final most likely that you will have issues with Nvidia Card + VLC + Two or more LCDs. Tested this on four LCD screens, and it works perfectly. Here is small tutorial on how to fix all this.First make sure your vlc settings is correct: Open VLC and go to Tools -> Preferences -> Video and check if your Output is set to Default Then open Nvidia Settings and enable following options: Run this command in your console or press ALT+F2 and type:

gksudo nvidia-settings

In X Server XVideo Settings: Enable, Sync to VBlack (repeat this for each monitor)

In OpenGL Settings: Enable, Sync to VBlack (repeat this for each monitor)

Now open Compiz Config, if you don’t have it installed install it by typing:

sudo apt-get install compizconfig-settings-manager

Then enable following options: System -> Preferences -> CompizConfig Settings Manager -> General -> General Options
Under General Tab, check “Unredirect Fullscreen Windows”. Under Display Settings, check “Sync To VBlack” and Select Texture Filter, Best
(repeat this process on all displays)

Now if you want to use two LCDs or more do this:

gksudo nvidia-settings

In “X Server XVideo Settings” select under “Sync to this display device” and select the LCD you want to watch VLC video in.