I think I installed the wrong driver for my nvidia 7100 GS under Kubuntu 9.04 , after rebooting kubuntu stated in a text mode with no display !
help
help
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# cd /etc/X11/ # sudo cp xorg.conf xorg.conf.bak # sudo nano xorg.conf
#lsmod |grep nvidia
sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.sort_of_working_backup
sudo /etc/init.d/hal restart
sudo /etc/init.d/kdm restart
sudo mv /etc/X11/xorg.conf.bak /etc/X11/xorg.conf
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