Comment 2 for bug 459858

Hello,

THIS worked for me:

1.) Edit "/etc/X11/xorg.conf" like this (as root):

Section "Device"
        Driver "nvidia"
        Option "NvAGP" "1"
EndSection

2.) Edit the "/etc/default/acpi-support" like this (as root):

# Should we attempt to warm-boot the video hardware on resume?
POST_VIDEO=false

3.) Blacklist the agp-modules (look after them by typing: lsmod | grep agp)
     I did it by editing "/etc/modprobe.d/blacklist.conf" (as root) like this (just typing this at the end of the file):

blacklist agpgart
blacklist nvidia_agp

4.) Restart... and it worked for me!