This solution works on my laptop (ubuntu 16.04, but should work on previous OS): open as root file /etc/UPower/UPower.conf and change IgnoreLid=false ==> IgnoreLid=true save changes, restart system and now it works :-) You can remove light-locker now.
You can use bash for these: sudo sed -i -e 's/IgnoreLid=false/IgnoreLid=true/g' /etc/UPower/UPower.conf sudo apt-get remove --purge -y light-locker light-locker-settings -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1357090 Title: Black screen on resume in Xubuntu 14.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1357090/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs