How to get rid of Contrast/Brightness in box stuck on screen

October 29, 2020 at 18:56:31
Specs: Macintosh
How do you get rid of contrast/brightness black box on screen.I have shut down my computer many times and nothing helped.I also have the buttons on my monitor to get it to leave. I press 1 and it will disappear for 30 seconds and then it is right back.It is very frustrating.
Cheryl

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#1
October 29, 2020 at 22:12:24
Is this a box that normally displays at the press of a single
button on the monitor? That is, it doesn't normally require
you to press some combination of buttons? If so, it might
just be a problem with the button.

-- Jeff, in Minneapolis


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#2
October 30, 2020 at 01:27:11
Make and model of monitor might be useful here?

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#3
October 30, 2020 at 10:54:17
Unplug all the cables to the monitor then plug them back in again.

The problem is with the monitor not the computer.

Always pop back and let us know the outcome - thanks


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