masz dokładnie ten sam problem co ja
http://forum.linuxmint.pl/index.php/topic,672.0.htmlU mnie pomogło pożyczenie od kogoś innego karty GF 4 Ti i zainstalowanie do niej sterowników. Potem podmieniłem ją z powrotem na MX 440 i wszystko śmiga. Mogę Ci swojego Xorga podesłać może u Ciebie też zadziała.
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder57) Sat Jan 24 20:04:42 PST 2009
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "MAG"
HorizSync 30.0 - 80.0
VertRefresh 70.0 - 75.0
Option "DPMS"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1280x1024_50.00"
EndSubSection
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
# generated from default
EndSection
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Device"
Option "AddARGBGLXVisuals" "true"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection
Section "ServerFlags"
Option "DontZap" "False"
EndSection