Ubuntu 16.04 LTS freezes randomly when running on Dell Inspiron 11 3147 (2016) laptop. Mouse, keyboard, touchscreen are not reacting - I have to power cycle the machine.
This happens both on stock configuration (4GB RAM, 500GB HDD) and after upgrade (8GB RAM, Samsung 850 Evo SSD).
Resource monitor shows CPU, RAM and storage are used reasonably, all well below 30%. I have upgraded the kernel to version 4.6.4, the problem still exists.
I can not blame hardware, as Windows 10 (which was originally coming with the laptop) had worked non-stop for weeks with no problems at all.
/var/log/syslog I can not see anything which could explain a sudden freeze, however, I might be overlooking something or searching in a wrong direction.
Could you give me some hints how can I resolve this?
UPDATE: I have installed Gnome as my new default window manager. At the moment machine runs smoothly for several hours.