After an update to ubuntu 12.04 from 10.04, I have a strange problem: in grub menu if I select ubuntu kernel 3.2.0-58-generic the graphical interface just hangs there, I get this black screen with a blinking cursor at the top. It does react to crt+alt+F2 and ctr+alt+supr and then it reboots.
Then I select the other kernel which is the recovery and I enable networking and then drop to root shell I do
/etc/init.d/lightdm start and then once it managed to boot normally and was working, kind of.
It's dell T7500 desktop with quadro 600 nvidia graphic card. I have blacklisted -nouveau and i am using nvidia driver 310.19 downloaded from their website.
I have previously purged nvidia and reinstalled xorg, gdm, lightdm several times, tried using gdm over lightdm ...
I have gnome3 desktop
I have then updated nvidia driver using
nvidia-installer --update and now it's 310.20
After last reinstall of lightdm even
/etc/init.d/lightdm start doesn't work.
I have tried to boot in failsafe graphic mode but still but it says no screen found (I have a screen obviously).
I have checked the /var/log/Xorg.failsafe.log and basically here are some of the messages:
loading --- vesa driver Ignoring device with a bound kernel ... Screens found but none with usable configuration
fatal server error no screens found
I have tried this:
sudo X -configure
sudo mv xorg.conf.new /etc/X11/xorg.conf
then since it dind't work I ran
Any other staff I could do? Thanks
EDIT: I installed dgm and then I did service gdm start and then startx and got the purple ubuntu screen which seems better than black screen but is not as ctr+alt+supr doesn't work
EDIT2: I have removed lightdm and installed gdm. So now if I try to boot normally it also crashes (shows weird screen half purle half black) but if I choose the recovery kernel and then slect the option boot normally it boots fine using gdm.