Section "Screen"
Identifier "Default Screen"
Device "NVIDIA XFX 7600 GS 512mb"
Monitor "Philips LCD 150S "
DefaultDepth 24
DefaultFbBpp 32
Option "AddARGBGLXVisuals" "True"
Option "AllowGLXWithComposite" "True"
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Este é um pedaço do meu arquivo xorg
sudo gedit /etc/X11/xorg.conf
Inclua as resoluções se já não estiverem, salve ai reinicie o x
Cltr+Alt+Backspace
fiz, mas não adiantou...
tá assim aqui no meu
Section "Screen"
Identifier "Default Screen"
Device "Generic Video Card"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1580x1050" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
não consegui mudar a resolução