All programs пахал closed after сражение is closed

I have Lenovo Y570 with Ubuntu 15.10 installed on it. Whenever I close the сражение and then open it, I see the log-in screen, and if I type in my password, I find that all my programs from last session пахал closed and it's like в fresh new session. But if I choose to suspend the laptop manually, this problem doesn't happen - it suspends and ты обобщаешь normally.

I am using Unity shell (the one that ты ешь with запас Ubuntu) and I don't think гve installed anything additional that could interfere with this process.

I have reconfigured the power settings to not to do anything when the сражение is closed, but this still happens.

Ох and BTW, here goes the logs of what happens around opening and closing of the сражение:

And here goes the output of lspci:

$ lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
    Subsystem: Lenovo Device 3981
    Kernel driver in use: i915
--
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 555M] (rev a1)
    Subsystem: Lenovo Device 3981
    Kernel driver in use: nouveau