Hello, I'm new to linuxquestions.org. My problem is that after installing X.org with nvidia drivers, everything is fine except that my virtual screen is shifted so far downward relative to the physical screen that I can't compensate for it using the controls on the monitor itself. I had this problem previously and I had a knowledgeable friend assist in editing some configuration file, but he's not currently available. I'm using debian sarge with kernel-image-2.6.16-2-k7, with gnome desktop.

Hmm... I thought that newer nvidia drivers did the screen aligning automatically? Apparently not.

Well, you can set the horizontal and vertical refresh frequency in "dpkg-reconfigure xserver-xorg" advanced monitor settings (or by directly editing /etc/X11/xorg.conf). If you know the refresh rates that your monitor's manufacturer recommends, that should help you a lot. If you've lost your monitor's manual, try searching the monitor manufacturer's website or do a Google search for "horizontal", "vertical" and your monitor's model.

You could also try opening a terminal window and starting xvidtune from the command line. If you can align the virtual screen with the physical one using xvidtune, you can then press the "Show" button in xvidtune and it should print a new modeline for your monitor in the terminal window. Then you can copy & paste the modeline, adding it under the "Monitor" section in /etc/X11/xorg.conf. Here's an example:

http://www.linuxquestions.org/questi...d.php?t=207579

After editing /etc/X11/xorg.conf, exit from GNOME to the login screen. Then press the Ctrl-Alt-Backspace keys simultaneously to restart X.org and then start GNOME again to see if there's any difference.

The Nvidia drivers in my case for some reason don't automatically align the screen. In fact they are about a centimeter off in the vertical relative to the OpenGL drivers I was using before. I am positive that I configured the hardware correctly when I configured X because I had the manual in hand. But I get 100X better performance with the nvidia drivers so no contest.

I successfully used your second suggestion pasting a new ModeLine in the Monitor section of xorg.conf. Thanks!