drivers - Can't switch to NVidia graphics card on Ubuntu 16.04

I'm working on Ubuntu 16.04LTS and I would like to switch to NVidia Geforce 740m instead of Intel Ivybridge Mobile. I've tried multiple solutions found on askubuntu but nothing seems to work.

Updating drivers, installing prime, removing all NVidia drivers and installing them again + prime - been there done that

Still when I enter NVidia X Server Settings, PRIME profiles are unavailable. Switching through terminal using prime-select nvidia doesn't give any results as well.

Below lspci output:

    ~$ lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
    Subsystem: ASUSTeK Computer Inc. 3rd Gen Core processor Graphics Controller
    Kernel driver in use: i915
--
01:00.0 3D controller: NVIDIA Corporation GK107M [GeForce GT 740M] (rev a1)
    Subsystem: ASUSTeK Computer Inc. GK107M [GeForce GT 740M]
    Kernel modules: nvidiafb, nouveau, nvidia_375_drm, nvidia_375

lshw gives me that:

    ~$ sudo lshw -c video
  *-display UNCLAIMED
       description: 3D controller
       product: GK107M [GeForce GT 740M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:f7000000-f707ffff
  *-display
       description: VGA compatible controller
       product: 3rd Gen Core processor Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:31 memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64) memory:c0000-dffff

I guess configuration entry shouldn't be empty in NVidia info but don't know what to do with that.

This is how my Additional Drivers tab looks like on Software & Updates and finally the
NVidia X Server Settings window. As you can see the PRIME profiles are unavailable. Even though it's installed

~$ whereis nvidia-prime
nvidia-prime: /usr/share/nvidia-prime

Any ideas? I really stuck on this, would be greatful for any help.