nvidia input not supported full screen games

I'd try:

sudo nvidia-xconfig; gksudo nvidia-settings

Set the display up as you wish. Once you are done click "Save to X config file"

Then restart the x server (or reboot). This may help. I used to have this in games and had to manually setup the display in the games config file to get them to work.

Ok i tried to do what you suggested and this came up along with the nvidia control application. Which by the way i think i have tried just about every option in it to try and get it to work..lol anyway i dont know how to set the display up from here.Using X configuration file: "/etc/X11/xorg.conf".

VALIDATION ERROR: Data incomplete in file /etc/X11/xorg.conf.
                  Undefined Device "(null)" referenced by Screen "Default
                  Screen".

Backed up file '/etc/X11/xorg.conf' as '/etc/X11/xorg.conf.backup'
New X configuration file written to '/etc/X11/xorg.conf'

/home/trim/.themes/Clearlooks-Vista/gtk-2.0/gtkrc:54: Clearlooks configuration option "menuitemstyle" is not supported and will be ignored.
/home/trim/.themes/Clearlooks-Vista/gtk-2.0/gtkrc:55: Clearlooks configuration option "listviewitemstyle" is not supported and will be ignored.
/home/trim/.themes/Clearlooks-Vista/gtk-2.0/gtkrc:56: Clearlooks configuration option "progressbarstyle" is not supported and will be ignored.
trim@trim-desktop:~$

Thats fine, reboot and see how it goes.

ok were making progress! before when i tried to save to an xconfig file i would get an error message.. i set my resolution in the nvidia control panel and then saved it and rebooted. still black screen when i try to start any full screen game. any ideas which setting covers this particular feature like a maximum resolution or something when the games take over?

http://www.ubuntugeek.com/how-to-fix-ubuntu-10-04-lts-lucid-blank-screen-at-startup.html

My problem isnt with installation or startup black screens. only when opening a full screen game. other than this little problem ubuntu has been the best operating system i have ever used. i've been living with this for over a year now though so i guess i can wait a little longer till i learn a little more about linux and figure out whats going on though. thanks John

I had the same issue - black fullscreen with audio OK in most opengl or sdl games under KDE 4.10. (Mint Nadia)
It may be joined with: https://bugs.kde.org/show_bug.cgi?id=297146

What helped me:

System settings/desktop effects/advanced unchecked "Suspend desktop effects for fullscreen windows"

It may affect game performance but I am able to run all games in fullsceen.