After changing to Intel (Power Saving Mode), Nvidia X-server setting is not showing anything. I need to active GPU now but can't activate it.

$ sudo lshw -c display

  *-display                 

       description: VGA compatible controller

       product: HD Graphics 5500

       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:50 memory:99000000-99ffffff memory:a0000000-afffffff ioport:5000(size=64) memory:c0000-dffff

  *-display

       description: 3D controller

       product: GK208BM [GeForce 920M]

       vendor: NVIDIA Corporation

       physical id: 0

       bus info: pci@0000:04:00.0

       version: a1

       width: 64 bits

       clock: 33MHz

       capabilities: pm msi pciexpress bus_master cap_list rom

       configuration: driver=nvidia latency=0

       resources: irq:16 memory:9a000000-9affffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:3000(size=128) memory:9b000000-9b07ffff







$ sudo nvidia-settings 



ERROR: Unable to load info from any available system





(nvidia-settings:45705): GLib-GObject-CRITICAL **: 16:53:23.943: g_object_unref: assertion 'G_IS_OBJECT (object)' failed

** Message: 16:53:23.948: PRIME: No offloading required. Abort

** Message: 16:53:23.948: PRIME: is it supported? no