Here's another avenue:
http://macguitar.me/apps/pixelcheck/
Create an extra desktop on the screen you want to watch your video on.
Launch PiXel Check. Choose black. It will black out all your monitors. Now
sideswipe to your extra desktop and start your video.
Sweet.
> On Dec 28, 2019, at 2:42 PM, Macs R We <[email protected]> wrote:
>
> Use mission control to create a desktop or the other screens, and make its
> wallpaper black. If you want to darken the screens, just mouse to them and
> scroll sideways to the black desktop.
>
>> On Dec 28, 2019, at 2:34 PM, Carl Hoefs <[email protected]>
>> wrote:
>>
>> I have a MacPro ("ashcan") that supports up to 6 monitors. I have multiple
>> large-screen monitors running right now, but I'd like to be able to have all
>> but one go dark (black), such as when I'm watching a full-screen video on
>> one monitor. The others being on are quite a distraction so I'd like to
>> "blank" them for that purpose.
>>
>> Is there any keyboard shortcut (or other way) to do this (on Mojave)?
>>
>> - I know the ctrl-shift-eject combo but that causes all screens to go dark.
>> - And if I *gasp* turn off the other monitors macOS thinks they're no longer
>> connected and scrambles all of my carefully placed windows onto one.
>> - I'm skipping the upgrade to macOS Catalina completely. It's Horrorville.
>>
>> -Carl
>>
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>
--
Macs R We -- Personal Macintosh Service and Support
in the Wickenburg and far Northwest Valley Areas.
http://macsrwe.com
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