This article is intended to help you optimize the projected screen of your MacBook Air. If you don’t change anything when you project, the laptop will use the default settings and provide a decent projected image but if you want to improve the quality of projected screen you will need to tweak the display settings using System Preferences.
Click System Preferences in your Dock and choose Display. Or find the display icon in the upper right of the menu bar and select Open Display Preferences…
You will need to decide if you want to “Mirror” or “Extend” your computer screen. If you Mirror, you will see the same thing on your computer screen as you see on your projected screen. If you Extend you will be able to have different things on the computer screen than what you have on the projected screen.
There is a good chance you are using either the Epson PowerLite 83+ or the Epson PowerLite 96w, 99w or 109w projector and the best resolution recommendation will vary slightly depending on which one you are using. You can figure out what model you have by looking at the top of the projector (near the buttons) for the 83+, 96w, 99w or 109w stamp.
Projector: Power Lite 83+
• Best choice appears to be clicking on Scaled while holding the Option key and selecting 1024 x 768.
• Using Best for Display 800 x 600 works but the picture (text) is large.
• 1280 x 960 works but the picture (text) is rather small and fuzzy and any resolution larger than this only causes the image to become more fuzzy.
Projector: Power Lite 96w, 99w, or 109w
• It is highly recommend that you use an EDID Minder if you are using VGA to project from your computer. The EDID minder is a little light gray or tan device that goes between the VGA dongle and the VGA cord that plugs into the wall. If you do not have one of these, feel free to ask the tech for your building to get you one.
• Click on Scaled while holding the Option key, this will give you and extended list of resolutions.
• For most systems, we find that either 1280×800 or 1440×900 are great starting points, but feel free to play around with the different options.
• Best option for both projectors appears to be iPad Retina (960 x 720) option under AirServer > Preferences…
• The default of iPad Retina High Quality (1440 x 1080) is acceptable as well but to change it open AirServer and find the AirServer in the upper right hand side menu bar (it looks exactly like the Display Preferences but with a triangle point up) and choose the Mirroring tab. Use the pull down menu to change the resolution.