screen resolution & graphics card not detected

To increase you screen resolution you can use a tool to change your xserver setting like your video card driver and monitor. The tool is called displayconfig-gtk.

Open a terminal from the menu Applications->Accessories->Terminal and type

sudo displayconfig-gtk

Try to configure your monitor to get more resolutions. You can select your monitor from the list or try to add it with the inf file from monitor driver cd, disk, or download.

After configuring you should reboot

If displayconfig-gtk is not install you can install by typing

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install displayconfig-gtk

Let me know is this works

In Ubuntu 8.04 (not more available into Ubuntu 8.10) try to use displayconfig-gtk: Simple gtk tool to change xserver settings like graphics card driver or monitor.

-- Please open a Terminal from the menu Applications → Accessories → Terminal and type or better copy and paste:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get install displayconfig-gtk

-- give your user password when requested, you don't see nothing when you type it, then press enter.

Then to configure your monitor resolution:

sudo displayconfig-gtk

then try to select and configure your monitor from the list or try to define your monitor by putting the inf file take from xp driver cd or floppy or from the net. If you are introuble due low resolution to push hidden botton out of the screen visual try to press
the ALT key on keyboard and drag the working windows to get access to buttons.

Reboot your pc.

Then go to menu System → Preferences → Screen resolution to try to get high screen resolution setup

Try more than once and keep the refresh/resolution frequency to the lowest value, then choose a high value and retry.

If this solves you problem, please mark as Solved. If not, please clarify your question.

hope this helps

Thanks marcobra, that solved my question.