I am working on Debian Stable Linux with XFCE desktop, which is otherwise working very well.
I find that when I click "Log Out" button on XFCE main menu, it usually shows me following 7 options:
However, at other times, only 5 options are shown:
Options "Hibernate" and "Hybrid Sleep" are not coming.
It seems to occur randomly and I am not able to connect this with any application or activity on the system.
Where is the problem and how can it be solved?
Edit1: Following is output of 'free -m' command showing memory and swap in megabytes:
$ free -m
total used free shared buff/cache available
Mem: 3830 765 1839 229 1224 2610
Swap: 7950 0 7950
Edit2: I also have Windows-7 on this system (dual boot) and I sometimes run it. Can that have an effect?