In log files I found this error, before gnome session crashed:
Xorg[1481]: segfault at b4f1f000 ip b489c366 sp bfdce710 error 7 in
nvidia_drv.so[b47b9000+6f3000]
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NVIDIA Driver Version: 302.17
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https://bugs.launchpad.net/bugs/1015031
Title:
Gnome session crashes, when using unity
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Thank you for your bug report, that's an issue with the nvidia driver if
it segfaults in the driver
** Package changed: gnome-session (Ubuntu) = nvidia-graphics-drivers
(Ubuntu)
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** Attachment added: lspci result on my comp
https://bugs.launchpad.net/bugs/1015031/+attachment/3195823/+files/hardware.txt
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