Upgraded 8.10 start up problem

[btermeli]

everything is normal after the upgrade. But since yesterday I can't login. Only I can see red, blue, black and gray screen.
If I change the session to "failsafe gnome" , it works and says problem is with startup scripts.

What can I do??

[lemming465]

You didn't mention your video card, but if it's either ATI or Nvidia there may be some X driver issues.

For ATI, try converting to the xserver-xorg-driver-flgrx driver (proprietary)
For Nvidia, try converting to the xserver-xorg-driver-nv driver (open source, 2D only)

You'll need to install the relevant driver from either synaptic, or "sudo apt-get install ...".

If necessary you can put driver "vesa" or driver "nv" or whatever into /etc/X11/xorg.conf. (sudo nano ...)