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Adriaan
Asked: 2016-06-03 12:04:30 +0800 CST

Laptop not going to sleep when closing the lid

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Hi I installed Ubuntu on this laptop. It's an HP notebook. After I close the lid it just shuts off the screen and stays on. It is set to suspend when the lid is closed but nothing happens. Everything is updated. Any help?

Specs:
Specs

laptop

1 Answers

  1. Best Answer

    OK, try manually suspending it first, to see what's up:

    sudo pm-hibernate

    Suspend and hybernate have issues in 16.04 LTS at default kernel. Type uname -r to see which kernel you're using, probably 4.4.0.21 or 22. Doesn't work at this kernel with some laptops. Upgrading to a newer kernel from 4.4.8 onwards fixes the problem.

    See more here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302

    To upgrade the kernel, check here: http://lifepluslinux.blogspot.hr/2016/04/ubuntu-1604-wont-wake-up-from-suspend.html

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