Black screen appears after re-opening my laptop from the Lock mode

Bug #1691171 reported by Gopal Chitalia
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
unity (Ubuntu)
New
Undecided
Unassigned

Bug Description

When I lock(Ctrl + Alt + L) my laptop and close the lid and then when i re-open my laptop , i see a blank screen . I dont see anything , i cant type in my password , nothing , even though the system is ON . So i have to manually turn off the laptop by the power button . Can anybody help me with this ??

I am using Ubuntu 16.04

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