Comment 79 for bug 1530405

Adding to the above #78, when I start the system, and before logging into ubuntu 18.04 LTS with my username and password. I opened up the console view (tty4). While shutdown down from there and reboot also works fine. I recieve no messages of cpu worker stuck as described above. I think its some other service which hangs the cpu workers(cpu resource deadlock) which starts after logging into the system for the first time. Since its a new laptop I have not installed apps or services to start with init.d and also I have put no triggers for /etc/rc* bluetooth/screen settings.

After this I tried installing nvidia drivers for gtx 1050 ti from nvidia site run file I downloaded and it gave an error for nouveau kernel driver. So I turned it off by nvidia's installer helper for this and updated ramfs and did a reboot.

No issues for me now, for shutdown/reboot or random system hang after successfully running nvidia graphics.