how to adjust preset gamma or brightness settings

Did you check the Applications > Settings > Display Settings , if it is what you searching for.

Pedro Fragoso wrote:
> Your question #18705 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/18705
>
> Status: Open => Answered
>
> Pedro Fragoso proposed the following answer:
> Did you check the Applications > Settings > Display Settings , if it is
> what you searching for.
>
> the best thing i can find is display settings under system/preferences/control center/monitor settings but there is a problem here.
it says
the current monitor is in the database but does not support
ddc/ci.
this often occurs when you connect the vga/dvi cable on the wrong input
of monitors supporting ddc/ci only on one of its two inputs.
if your monitor has two inputs please try to connect the cable to the
other input, and then click on the refresh button near the monitor list.

I have already checked i have only one input and i have tried to
refresh. Any other guesses?

Have you tried nvidia-settings ?

Pedro Fragoso wrote:
> Your question #18705 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/18705
>
> Status: Open => Answered
>
> Pedro Fragoso proposed the following answer:
> Have you tried nvidia-settings ?
> How do i do this I can't find a nvidia tool console?
>

Install the package "nvidia-settings" in Synaptic or (sudo aptitude install nvidia-settings) and then:

Applications > System Tools > Nvidia X Server Settings.

i installed the nvidia settings and now when i boot up i end up it a dos interface mode rather then the main ubuntu interface
this happens in recovery start up as well how do i fix this ?

pedro you there

Is there any output?

ok here it is i boot up i see the ubuntu logo then rather then my pictured
loggin screen i get a dos like prompt for loggin after i log in and type
dir/p or \ i forget i get a list of what would be my desktop folders and i
can access the folders for info but not to run anything. this accured after
i restarted after the install of the nvidia settings. HOW do i get my
other settings back to save all my stuff?

How's the /var/log/Xorg.0.log ? Try doing 'sudo dpkg-reconfigure xserver-xorg'