Tested Zesty daily and the fan started immediately after boot. When I do nothing the system shuts down shortly after it enters the desktop.
But I found out following: I can reproduce it with Zesty daily and Xenial 4.4.0-57.78 kernel. The fan is on after boot. As soon as I enter the Desktop, I press FN+F12 which puts the system in sleep mode and the fan stops. (In German the manual translates it with "toggle energy savings mode", in English it says "sleep toggle".) After a waiting moment I press the power button, it enters the desktop (in Xenial after login) and the fan doesn't start again, System works fine. Obviously kernel 4.9.0-040900rc6 does not trigger this. After a cold start it proceeds without ever running the fan and shutdown. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643341 Title: Unexpected shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643341/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs