XRandR Extension nVIDIA

Same here exactly, only on ATI.

ATI x1300, dual head setup (never worked properly)
Intel DualCore 1.8
Ubuntu 8.04, upgraded online from 7.10, last update on April 13th 2008.

In addition, both screens show only part of desktop. Looks like desktop is set to 1280x1024, but resolution is set to 1024x768. Or maybe even 1600x1200 vs 1280x1024. Hard to tell.

duplicate bug report??
https://bugs.launchpad.net/ubuntu/+source/displayconfig-gtk/+bug/140822

any way same here, cant change resolution at all. stuck with low res'..
nvidia 6600gt with last Envy drivers(tried also the regular but the same...)
AMD athlon 64
viewsonic P90f monitor
my /etc/X11/xorg.conf:

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
 Option "AddARGBGLXVisuals" "True"
 Defaultdepth 24
EndSection

Section "Device"
 Identifier "Configured Video Device"
 Driver "nvidia"
EndSection

Section "InputDevice"
 Identifier "Generic Keyboard"
 Driver "kbd"
 Option "XkbRules" "xorg"
 Option "XkbModel" "pc105"
 Option "XkbLayout" "us"
EndSection

Section "InputDevice"
 Identifier "Configured Mouse"
 Driver "mouse"
 Option "CorePointer"
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
  screen "Default Screen"
EndSection

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Extensions"
 Option "Composite" "Enable"
EndSection