Gnome stop with Kernel Error

[cosma-it]

Hello after upgrading to 15.10 we have a funny error, when we let the Laptop boot normal, the system halt with a gnome error.
When we start the System in Recovery Mode, doesnt matter which Kernel we use and press then, go to normal Boot again (1. Point in the list) then the System start and we get the Graphic Interface but all really slow and with delay in mouse movements and 2 mouse pointer.

Any idea?

[cosma-it]

Here a picture: https://www.dropbox.com/sh/9efj21kz2kmjy5d/AACM4ikXzPivk4qYM02X0yj3a?dl=0

[cosma-it]

okay solved alone ... deinstalled lubuntu desktop and kubuntu desktop and switched to lightdm ... problem solved