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Wed, Jun 13, 2018 11:21 pm

Screen goes black with only mouse pointer visible on MacBook Pro laptop

I've been experiencing an intermittent issue on my MacBook Pro laptop, which is running OS X El Capitan, where I find a black screen with only the mouse pointer visible after I return to it from being away from it for some time. I can move the pointer by moving my finger about on the touchpad, but I get no visible response to hitting any keys. I've tried hitting lots of different key combinations to try to get the desktop to reappear or at least get a login prompt, but none have worked. If I had music playing through the headphones from iTunes , I can hear it still playing if I put the headphones back on, but when I hit any key or keys I simply hear a "bonk" sound and see no response from the system. Initially, when I encountered the problem the only way I could gain access to the system again was to reboot, which might lead to a loss of unsaved work. I have found, though, that if I simply close the lid of the laptop as I might if I wanted to put it to sleep, wait about a minute, then reopen the lid and hit a key that most of the times I've tried that, instead of rebooting, when the problem has occurred, that I could get a login prompt allowing me to log back into the system with everything apparently running as it was before I encountered the problem.

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