Hi Actually this topic is still undecided even through it was so important for me. Because, this computer is my workstation and sometime I don't use it several days. And some day I'd like to login to check somthing but the screen never came back. Ctrl+Alt+F1 or other combination didn't response till reboot the system. Or I'd like to get a communication via TeamViewer but this screen is same real one as black. So last 2-3 months I was very busy to overcome problem. Because OS reinstallation should be last solution which called plan Z.
So Yesterday I typed following commands than the problem fixed. dm-tool lock light-locker-command light-locker & light-locker-command -l lxlock sudo reboot After booting up, the system has been back to normal. Thanks Ertan ** Changed in: ubuntu Status: Incomplete => Confirmed ** Changed in: ubuntu Status: Confirmed => Fix Committed ** Changed in: ubuntu Assignee: (unassigned) => Ertan Günay (f-info-3) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1500925 Title: Ubuntu 15.10 Idle freezing/screen not waking up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1500925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs