Computer+Video+Out

When a computer user would like to connect to a data projector, either mobile or a fixed Epson Brightlink 450wi, you will usually want the image on your computer and projector to be the same:

Make sure that your **Display (black Apple menu --> System Preference --> Displays) is set to mirroring**

Go to black Apple menu ---> System Preferences ---> Displays Select ☑ Mirror Displays (The pict below shows with Mirror Displays checked on.)

Also select ☑ Show Display in Menu Bar. This gives you the black monitor menu pull down in upper right to control/change screen resolutions.

FYI - Macbooks + most PC laptops have a function button w/ 2 screens on it that will evoke mirroring. Older white Macbooks can press F7 to toggle the mirroring.

One can leave the arrangement side by side -- not mirrored. Some teachers do this so a keynote or video could be running and the teacher could be working on grades, etc. on the other 'screen'.