How to solve the issue when your system freezes for few seconds from time to time or at all and you have similar information in /var/log/syslog after typing the command?
grep 'Resetting' /var/log/syslog
May 18 06:30:35 DELL kernel: [ 499.929699] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:34:48 DELL kernel: [ 753.880818] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:40:02 DELL kernel: [ 1067.896600] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:42:10 DELL kernel: [ 1195.896294] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:45:50 DELL kernel: [ 1415.895996] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:47:45 DELL kernel: [ 1530.903906] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:54:21 DELL kernel: [ 1926.903712] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 06:57:51 DELL kernel: [ 2136.887378] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
May 18 07:01:29 DELL kernel: [ 2354.870458] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
If you randomly encounter total system freezes, or it freezes from time to time for few seconds, the following kernel option is a workaround:
intel_idle.max_cstate=1
On new Intel processors Elementary OS and also Ubuntu freezes sometimes for few seconds, like it was in my case. So the solution is to do this:
sudo vim /etc/default/grub
press insert (ins) button
and add this line intel_idle.max_cstate=1 to the list of options inside
GRUB_CMDLINE_LINUX_DEFAULT=" ".
Then save that file and execute sudo update-grub from terminal. Reboot and it should be fixed. it should look like this after the change:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1"
I additionally installed rng-tools as advised above:
sudo apt install rng-tools
Seems this solved issue totally. I am monitoring this with command:
sudo tail -f /var/log/syslog | grep 'Resetting'
No rcs0 errors.