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KriStellar26

macrumors member
Original poster
Sep 10, 2015
90
28
Hi All. I have a Mid-2012 13-inch MacBook Pro 9,2. When I purchased it brand new in 2016 I immediately upgraded memory to 16 GB and hard drive to 1 TB SSD. I use my MacBook Pro with two external displays. One is connected via the Thunderbolt port, the other via USB-3. I keep the lid closed while using the external displays. It worked pretty seamlessly on High Sierra. This past week I upgraded MacOS to Mojave. No problems with the external displays working on Mojave... Only problem I am having is that my displays will NOT go to sleep. Even if I lock the screen manually, both displays stay on unless I power them off. Screensaver also won't come on. I have it set for 10 mins.

My energy saver settings are as follows:

On Battery I have it set for Computer sleep after 30 mins and display sleep after 5.
Option to "Put hard disks to sleep when possible" is checked and option "Slightly dim the display while on battery power" is checked.

On Power Adapter I have Computer set to never sleep and Display to sleep after 15 mins.
Option to "Put hard disks to sleep when possible" is checked and option "Wake for network access" is checked.

Nothing was changed after updating to Mojave.. but displays will NOT go off. I've checked the Activity Monitor, and there are no apps listed that are preventing sleep.

Any suggestions?
 
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