How To Connect a Video Projector to a Mac

Connect your MacBook DVI or Micro-DVI cable to the side of your MacBook. Consult your Mac's documentation if you are unsure which jack you have. Connect the other end of the cable to your video projector.
Switch the projector on.
Click the Apple logo on the taskbar, then click 'System Preferences.'
Click 'Displays.' Click 'Detect Displays.'
Select the new display and change the resolution to the highest available. You now have two displays ready to use with your MacBook.
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How to Use DVI Out on Macbook

Plug the DVI cable into the display, television or other equipment to which you are connecting the MacBook.
Plug the DVI-out connector end of the adapter into the DVI cable
Plug the Mini-DVI or Mini DisplayPort connector into the port on the left side of the MacBook. Open the 'Displays' preferences menu on the MacBook to make adjustments to the settings.
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How to Connect a MacBook to a TV Monitor

Connect a DVI cable from your Macbook to your TV. If your TV does not have a DVI port, then use a converter cable to convert DVI to S-Video.
Turn on the TV.
Click the Apple logo on the task bar and click 'System Preferences.'
Click 'Displays.' Click 'Detect Displays.'
Click the TV display and then adjust the 'Resolution' to the highest possible setting. If you are connecting to a high-definition TV, then you are likely to get the best resolution. You have now connected your MacBook to a TV.
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How to Connect a Samsung Flat Screen HDTV LCD to a MacBook

Power down your MacBook and change your Samsung's input to either the VGA input or to the HDMI input. This will be dependent on the cable connection you decided to use or that your MacBook allows.
Connect the Mini DVI or Displayport end of the connection cable to your MacBook. Connect one end of the VGA or HDMI cable to the female portion of the cable connected to your Mac and the other end to either the VGA port of your Samsung or an available HDMI port.
Power on your MacBook. It will automatically detect that the Samsung is connected and change your settings accordingly.
Edit your Display preferences via the System Preferences menu. Choose the settings that best suit your needs.
Connect audio by connecting the 3.5mm audio end to your MacBook the red and white RCA cables to your television audio inputs.
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How to Connect an Apple Mini DVI to HDMI TV (3 Steps)

Locate the HDMI to DVI adapter that came with your Mac Mini when you ordered it from Apple. If you do not have an adapter or you lost it, you can purchase one from the Apple store.
Insert the small end of the adapter into your Mac Mini's DVI port and attach the other end of it to the HDMI cord. Plug the other end of the HDMI cord into your television.
Turn on your television and your Mac Mini to see the Mac display on the television screen. You do not have to worry about sound because the adapter includes audio as well as visual capabilities.
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How to Hook Up Your Samsung TV to Your Mac (7 Steps)

Make sure that your television and Mac are both turned off.
Clear a space for the computer to sit beside the television. It should be close enough to the TV for the cords to reach both machines.
Connect the Apple mini-DVI to DVI/HDMI adapter to the VGA cable before connecting either cords to the television or to the Mac.
Plug-in the Apple mini-DVI to DVI/HDMI adapter to the Mac. This is located on the left side of the computer, identified by a rectangle that is flanked by two lines.
Connect the VGA cord to the television, securing the plug by screwing in the two screws. This cord will plug in on the back of the television that is marked 'PC IN.'
Connect the 3.55mm-to-3.55mm audio jack first into the headphone jack on the Mac to get sound. This is on the left side of the computer.
Plug in the other end of the 3.55mm-to-3.55mm audio jack to the television. This goes on the back side of the television, beside the space marked 'PC IN.' The jack is marked 'Audio.'
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How to Hook Up a MacBook to the Television

Connect the mini-DVI cable to the mini-DVI port on your MacBook.
Plug the S-video cable from the port on the television to the mini-DVI adapter in your MacBook.
Connect the headphone cable from the headphone port on the MacBook to the headphone port on the television.
Turn on your TV and select the S-Video input.
Turn on your MacBook.
Open System Preferences and click on 'Displays.'
Click 'Detect Displays.'
Click 'Mirror Displays.' Your laptop screen will now appear on both the laptop and television.
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How to Set the Display on a Macbook to Mirror

Locate a video-out port on the side of your MacBook. The available ports will depend on your MacBook's model. For example, a MacBook Air has a Thunderbolt port, while a MacBook Pro with Retina display has two Thunderbolt 2 ports and an HDMI port.
Examine the video port on the external display, and then use the appropriate cable or adapter to connect your MacBook to the display. For example, if your display has a DVI port and your MacBook has a Thunderbolt port, use a Mini DisplayPort to DVI Adapter to connect the two devices. In this example, connect the Mini DisplayPort end of the adapter to your MacBook's Thunderbolt port, and then connect the other end to the display's DVI port.
Open the 'Apple' menu, and then select 'System Preferences.'
Click the 'Displays' icon, and then select the 'Arrangements' tab.
Click the 'Mirror Displays' check box in the lower left corner of the window.
Click the red button in the upper left corner to close the window.
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How to Hook Up a Mac to an Overhead Projector

Connect the Mini-DVI cable to the Mini-DVI port of your Mac. This is usually located in the back of the computer.
Connect the VGA Adapter to the other end of the Mini-DVI cable.
Connect the cable to the port located on the back of the overhead projector and turn the projector on.
Change your Mac to display using the overhead projector. This is usually done by pressing F7 on your computer, however you should refer to your Macbook user guide for specific instructions should that not work.
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How to Hook Up a MacBook to a Larger Monitor (5 Steps)

Locate the mini-display port plug on the left side of the laptop, when looking at the keyboard. It's the third input from the right, or the first large plug from the right after the headphone inputs.
Plug the small mini-display port adapter into the plug on the side of the MacBook.
Plug the DVI cable from the Dell monitor into the DVI side of the adapter and tighten the screws.
Turn on the computer and the second monitor and allow it to boot up. Open up the System Preferences pane on the dock and click on the 'Display' icon on the second row, one column to the right. This will pull up the Display pane on both screens.
Choose the resolution that you want for your second monitor by clicking on the appropriate number. Then click on the 'Arrangement' menu option. Use the mouse to click and drag the monitors into the orientation that you want. For example, if you have your MacBook on the left and the second monitor on the right, then drag the second monitor to the right of the other using the mouse. This will allow you to drag your mouse from one side to the other without interrupting the flow. You can also align the two screens vertically so that the mouse tracks correctly.
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How to Connect an Apple Cinematic Display to a PC

Inspect your PC for a DVI connection port. This is the only way you can connect the Apple Cinema Display to your computer. A DVI connection port has three rows of square ports with a connector that resembles a cross.
Insert the DVI connection cable into the DVI port of the Apple Cinema Display. Tighten the screws along the side with your hands to secure the connection.
Connect the other end of the cable into the DVI connection port on the computer.
Power on the computer and the Apple Cinema Display. You can now see the content from your computer on the Cinema Display.
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How to Connect a MacBook Pro to a Samsung TV (5 Steps)

Examine the backside of your Samsung TV to find which display ports are available. Apple produces Mini DisplayPort adapters that are compatible with DVI, HDMI --- with a third-party adapter --- and VGA cables, so you'll want to see which port type your TV has in common. HDMI ports are semi-rectangular, while VGA ports are rhombus-shaped with several rows of pins. DVI ports feature a grid with multiple female pinholes.
Plug the rhombus-shaped end of the corresponding Mini DisplayPort adapter into your MacBook Pro. The DVI, HDMI and VGA Mini DisplayPort adapters all feature the same functionality, so which type you use ultimately comes down to personal preference.
Plug one end of the corresponding display cable into the other side of the Mini DisplayPort adapter.
Connect the other end of the display cable into the appropriate port on the Samsung TV.
Turn on both devices, if you haven't yet done so. Set the TV's TV/Video settings to the corresponding mode --- HDMI if you're connected via HDMI, for instance --- to begin using the MacBook Pro on the TV.
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How to Use a Projector With a Macbook Pro

Determine the input capabilities of the project. Many projectors only accept analog VGA connections. Digital HDMI or DVI connections are preferred.
Acquire a Mini DisplayPort adapter. One end of the adapter requires a male Mini DisplayPort connector. The other end of the adapter requires the same connection type as the projector, such as HDMI, DVI or VGA.
Connect one end of the HDMI, DVI or VGA cable to the projector.
Power on the projector and wait for it to warm up.
Connect the other end of the cable to the Mini DisplayPort adapter.
Power on the MacBook Pro and wait for it to finish booting.
Insert the Mini DisplayPort adapter with the connected cable into the Mini DisplayPort connector on the MacBook Pro. The projector is detected and configured automatically.
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How to Connect an Optoma Projector to a Laptop

Turn off your laptop computer, if it is on.
Plug one end of a VGA cable into the “VGA” port on the back of the Optoma projector. The VGA cable is included with the Optoma projector.
Plug the other end of the VGA cable into the “VGA” port on the side or back of your laptop. If using a Mac, plug the other end of the VGA cable into the “VGA” port on the side of a DVI to VGA adapter. Plug a DVI cable into the “DVI” port on the other side of the DVI to VGA adapter. Plug the other end of the DVI cable into the “DVI” port on the back or side of your Mac laptop.
Plug one end of a 1/8-inch audio cable into the “Audio” port on the back of the Optoma projector.
Plug the other end of the 1/8-inch audio cable into the “Audio” or “Headphone” port on the back or side of your laptop.
Turn on the Optoma projector by pressing the “Power” button on the projector. The projector will take about a minute to start up.
Turn on your laptop. Your computer may auto-detect the projector. You will see your laptop's display projected through the Optoma projector. If you don't see your laptop's display, press the function key on your laptop's keyboard that activates the VGA port on your laptop. Consult with your laptop's manual for more information.
Use the “Audio” buttons on the Optoma projector to adjust the audio transmitted from your laptop.
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How to Put an Apple Computer on a Projector Screen

Power on the projector according to the manufacturer's instructions.
Plug the projector's video cable (VGA or DVI) into the matching port on the Apple computer. The display should automatically appear on the projection screen.
Click the 'Apple' menu, if the projector does not automatically detect the connection. Select 'System Preferences.'
Click 'Displays.' Select 'Arrangement.'
Click a check mark next to 'Mirror Displays.'
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