The input on my laptop (system specs below) freezes at random times, for no reason. What I mean with this is that the keyboard and trackpad stop working.

I've had this problem for a long time (since Ubuntu 16 LTS), but recently I formatted my whole PC and installed Ubuntu 18 LTS and thought that would solve my problem. Since it didn't, I'm thinking that this problem is specific to my hardware.

What happens exactly is that my onboard trackpad and keyboard freeze. So, if I have an external keyboard plugged in, I can still type with it. Same with the mouse. I have also observed that if i'm typing when this happens, it's as if the key I'm pressing gets stuck:

If I'm pressing t when the freeze happens, this happens:

This is some example textttttttttttttttttttttttttttttttttttttttttttttttt

And it keeps typing t until I have to forcibly reboot my computer. I don't know how useful is this information, but there it is.

System Specifications

Laptop

System Information

        Manufacturer: LENOVO

        Product Name: 80NW

        Version: Lenovo ideapad Y700 Touch-15ISK

Kernel

4.15.0-29-generic

Ubuntu

Distributor ID: Ubuntu

Description:    Ubuntu 18.04.1 LTS

Release:    18.04

Codename:   bionic

CPU

Architecture:        x86_64

CPU op-mode(s):      32-bit, 64-bit

Byte Order:          Little Endian

CPU(s):              8

On-line CPU(s) list: 0-7

Thread(s) per core:  2

Core(s) per socket:  4

Socket(s):           1

NUMA node(s):        1

Vendor ID:           GenuineIntel

CPU family:          6

Model:               94

Model name:          Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz

Stepping:            3

CPU MHz:             800.312

CPU max MHz:         3500,0000

CPU min MHz:         800,0000

BogoMIPS:            5184.00

Virtualization:      VT-x

L1d cache:           32K

L1i cache:           32K

L2 cache:            256K

L3 cache:            6144K

NUMA node0 CPU(s):   0-7

GPU

+-----------------------------------------------------------------------------+

| NVIDIA-SMI 390.48                 Driver Version: 390.48                    |

|-------------------------------+----------------------+----------------------+

| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |

| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |

|===============================+======================+======================|

|   0  GeForce GTX 960M    Off  | 00000000:01:00.0 Off |                  N/A |

| N/A   51C    P0    N/A /  N/A |    295MiB /  4046MiB |      0%      Default |

+-------------------------------+----------------------+----------------------+



+-----------------------------------------------------------------------------+

| Processes:                                                       GPU Memory |

|  GPU       PID   Type   Process name                             Usage      |

|=============================================================================|

|    0      1017      G   /usr/lib/xorg/Xorg                            24MiB |

|    0      1170      G   /usr/bin/gnome-shell                          49MiB |

|    0      1363      G   /usr/lib/xorg/Xorg                           117MiB |

|    0      1520      G   /usr/bin/gnome-shell                          93MiB |

|    0      1980      G   ...-token=153BFAB3474626E84A199D1208518B77     6MiB |

+-----------------------------------------------------------------------------+

Does anyone know how to solve this?

Any updates on the issue?

Switching GPU off in the BIOS solves the problem, but it's kind of not that best solution.

I've heard installation of Ubuntu in way which will force it to rely only on integrated Intel Graphics Chip should solve it (possibly via installation of Ubuntu OS with disabled NVidia chip). Are there any less destructive solutions?