Laptop often locked with black screen when re-opening lid

Bug #1575871 reported by Alexander Karelas
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
pm-utils (Ubuntu)
New
Undecided
Unassigned

Bug Description

I have a Dell Latitude E5520 (bought in 2012). Worked fine with Ubuntu 14.04 LTS.

Since installing Ubuntu 16.04, roughly half the times I close the lid, the fan of the laptop keeps running the whole time, and in those cases that the fan keeps running, if I open the lid, all I get is a black screen, the fan keeps running, and the power LED is on.

If, when closing the lid, the fan stops, then when I open the lid I get the normal "enter password to unlock" screen.

Revision history for this message
Alexander Karelas (karjala) wrote :

When I get the black screen I mentioned above, there is no way out of it. I have to hold the power button until the computer turns off.

Revision history for this message
Alexander Karelas (karjala) wrote :

Bug has not occurred again for over a week of heavy use of my laptop.

Should I close this bug now?

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.