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GeoProf

macrumors newbie
Original poster
Aug 1, 2018
1
1
Every now and then when I access a Youtube video and go to full screen, I see the video for a second and then the whole screen goes black. Furthermore, once it does, I cannot escape out of the full screen and must shut my iMac (OS 10.13.6) manually.
Does anyone know what is going with my iMac?
 
If the escape key doesn't work, did you try any of the other Finder and mission control keys, such as:

F12 Show Dashboard
F11 Show Desktop
Command Tab - select active program

When escape doesn't work Command Tab has always has worked for me.
 
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