I just found out that my mother had several virtualbox
packages installed. But not virtualbox
itself.
Namely, if I remember correctly, these three:
virtualbox-guest-dkms
virtualbox-guest-utils
virtualbox-guest-x11
And yes, these were installed on the host.
As she never used virtualbox
, I probably installed it along with these packages long ago for testing purposes. And forgot to remove these packages along with virtualbox
itself.
The question is:
Could this be the cause of system freezing? Well, I am unsure, if the whole system freezes. But the screen freezes almost every day. I am not at the machine, so I don't know if she could just press Ctrl+Alt+Backspace to restart the display manager.
She told me just now, that it happens regularly, almost daily, and she just presses the power button for a few seconds. Oh my god, I say.
So far I found these "suspects" and removed them.
Could you tell me what to look for further and where?
The system is Linux Mint 18.1 Cinnamon 64-bit.