Hi friends, By all means I have been unable to ensure that my CPU fan works well because it cannot be detected by /proc/cpuinfo, dmidecode, sensors, various ACPI fan scripts etc. My laptop sometimes hangs and then shuts down and then gets stuck at boot with black screen. But this happens sometimes. I am of the view that my CPU fan does not function properly and on detecting high temperature it shuts down. So far I have come to the conclusion that there is lack of support from ACPI on my Acer Aspire V5 571G. Another problem I face is my laptop gets stuck in shutdown-reboot loop be it Kali Linux, be it Ubuntu. Any idea to get around this folks? I am using Ubuntu 14.04.02 on Acer Aspire V5 571G. I have followed millions of links like: https://www.linux.com/learn/tutorials/620416:discovering-and-monitoring-hard... https://help.ubuntu.com/community/AspireOne/AOA150 http://ubuntuforums.org/showthread.php?t=1612786 -- Thanks Albert Christ www.coderalbert.wordpress.com https://github.com/albertcoder/ || If I had eight hours to chop down a tree, I’d spend the first six of them sharpening my axe. ||