I have only recently installed Ubuntu 16.04 LTS in my machine. It is dual booted alongside Windows 10. I have an NVidia graphic card, Intel i5 7700 and 8gb RAM. Changing intel_idle.max_cstate = 1 did not help my problem.
1 Answer
The problem could be that the default open source driver is insufficient or ineffective for the machine.
Switch over from open source driver Xorg to proprietary drivers.
Under Software & Updates, go to Additional Drivers, and select both proprietary drivers(One in NVIDIA Corporation and one in Unknown).
'Using NVIDIA binary driver - version 384.90 from nvidia 384 (proprietary, tested)' and 'Using Processor microcode firmware for Intel CPUs from intel-microcode (proprietary)' are the two drivers to be selected. You might have a different driver that's proprietary under NVIDIA Corporation.
Apply changes and enter sudo reboot in terminal. This solved my problem.
In this picture, I have switched from open source to proprietary. Additional Drivers, Software and Updates
