Intel Mac mini Q&A - Updated March 12, 2009
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If you're using a Mac Pro (Late 2013) make sure your displays are connected to the right ports. If you're using a display hub, switchbox, or 'KVM,' try connecting your display's video cable directly to your Mac instead. Disconnect the video cable where it plugs into your Mac, then plug it back in to reseat the connection. Use Thunderbolt 3 (USB-C) with displays and other devices that connect using either a Thunderbolt 3 (USB-C) cable or USB-C cable. You can also connect a USB-C power adapter and cable to charge your notebook computer. If you have a device that doesn't connect to this port, you might be able to use an adapter to connect it. These Mac models have Thunderbolt 3 (USB-C) ports.
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How do I connect an Intel Mac mini to a television?
How to connect your Intel-based Mac mini to a television depends greatly on the type of television you have (and the Mac mini you have as well). Apple once provided a helpful document entitled 'Using Mac mini with a Television' on the Apple Support Site.
The subsequently deleted Apple Support Document noted that the Intel Mac mini can be connected to digital HDTV sets via DVI, HDMI, and VGA/RGB [emphasis added]:
- A standard DVI cable can be attached from the [pre 'Early 2009'] Mac mini [models] to an HDTV, supporting resolutions up to 1920x1080. [The 'Early 2009' models can be connected to a DVI equipped television via DVI by using a Mini-DVI to DVI adapter].
- HDTVs with HDMI inputs can be connected to [a pre 'Early 2009'] Mac mini with a DVI to HDMI adapter. A DVI to HDMI adapter will relay video but not audio from the computer. [The 'Early 2009' models can be connected to an HDMI equipped television by using a Mini DisplayPort to HDMI adapter]. . . [To connect audio], the Belkin PureAV HDMI to DVI cable can be ordered.
- The DVI to VGA adapter that was included with your [pre 'Early 2009] Mac mini can be used along with a VGA cable to connect [the Mac] to an HDTV with an analog PC-input (VGA/RGB), supporting resolutions 1920x1080. [The 'Early 2009' models can be connected to a VGA equipped television by using a Mini-DVI to VGA adapter].
The same document provided instructions on how to connect pre 'Early 2009' Intel Mac mini models to an analog television with the Apple DVI-to-Video Adapter via Composite or S-Video:
- Composite is the most widely available video input on traditional analog televisions. It delivers acceptable quality at resolutions up to 800x600 on most televisions.
- S-Video separates the analog video signal into separate channels, providing better quality than Composite. S-Video is best used with a resolution of 800x600.
For connecting the audio, Apple once mentioned that all Intel-based Mac mini models use 'a combo mini-plug connector to output both digital audio and analog audio signals' and audio can be connected using digital and analog audio:
- Digital Audio: Use an optical mini-plug cable with the audio output on the Mac mini to connect A/V receivers and home theater audio systems with 5.1 surround sound and optical audio inputs. A mini-plug to TOSLINK adapter may be needed to connect to some receivers. The Belkin PureAV Digital Optical Cable with Mini-TOSLINK adapter is available from the Apple Store [and other resellers].
- Analog Audio: The Mac mini can be connected to most televisions, audio receivers and speakers using analog line-out. A mini-plug to stereo RCA adapter may be necessary. The Monster iCable mini-to-RCA left/right audio cable is available at the Apple Store [and elsewhere].
Skimming the extensive 'Intel Mini: Home Theater' Reader Report on MacInTouch might be beneficial as well. It provides a collection of posts from people including questions, solutions, and opinions regarding using the Intel Mac mini with a television.
Site sponsor Adorama has new Mac mini models, as well as many of the adapters listed above, available free of sales tax (outside of NY and NJ).
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One of the ways to connect your Mac to an external display is by using a High-Definition Multimedia Interface or HDMI cable. You can connect the HDMI cable to the HDMI port on your Mac to a second monitor or TV. Whether you want to use a second screen or you want to export full audio and video display on your TV, connecting your devices is a lot easier with HDMI. Some Mac models, such as the Mac mini, also rely on HDMI to connect the computer to the display.
But with the release of macOS Catalina, a lot of Mac users using HDMI connection reported encountering various problems after the upgrade. Several users reported getting a black screen after installing the new version of macOS, even with the monitor still turned on. The display just turns black (or dark green in some cases) and eventually shuts down.
Other users, on the other hand, got a No Signal error message instead of the black screen. There are also some cases where the external display just blinks randomly when connected to a Mac running macOS Catalina.
Mac users who are using HDMI for their second monitor are less affected compared to Mac mini users who use HDMI as their main connection. However, this doesn’t deny the fact that display problems such as these can cause a lot of inconvenience and annoyance. Basic makeup kit for beginners mac.
This guide will show you what to do if your Mac shows no HDMI signal after Catalina update.
How to Fix HDMI Signal After Catalina Update
There is no explanation yet why the macOS Catalina update caused the HDMI to stop working, and it will probably take a while for Apple to release an update that addresses this issue. If you’re using your Mac for study or work, finding a solution to this problem is a priority because you can’t do anything with a black screen.
Cd burning software for mac free download. Before you try the solutions listed below, try some of these emergency steps first to see if they work.
- Restart your Mac. If you’re in the middle of installation, cancel it first before restarting. Once your Mac has restarted, resume the upgrade and see if you encounter further issues.
- Make sure that the HDMI and power cables are connected properly.
- Use a different HDMI cable. In the case that your HDMI cable is damaged, replacing it with a new one should resolve the issue.
- Use a different port. Try to use a different cable to connect your Mac to your display, if possible. For example, you can use a USB-C to HDMI cable for some Mac models.
- Optimize your Mac using Tweakbit MacRepair to delete possible corrupted files causing the issue.
If the above steps don’t work, try the solutions below.
1. Restart Your Display.
Restarting your TV, external monitor, or other HDMI devices should be your first step in fixing this issue. To do this:
- Turn off your HDMI display while your Mac is turned on.
- Disconnect the HDMI cable from your Mac, then plug it back again.
- Turn on your HDMI display again.
If the problem is caused by a minor glitch, restarting your HDMI device should do the trick. If not, try the other fixes below.
2. Enable Your Display Driver.
If you’re using an HDMI monitor or a TV as an external display and you encounter the black screen issue, changing your Mac’s privacy settings should take care of the issue. To do this:
- Click on the Apple logo, then choose System Preferences.
- Click on Security & Privacy, then click Screen Recording from the left menu.
- Tick off Enable the Display Driver in the right panel.
Changing your screen resolution and refresh rate parameters should help. Go to the Apple menu > System Preferences > Display and choose the resolution that you want.
3. Turn Off the HDMI Ultra HD Color Feature
HDMI Deep Color is responsible for creating a more realistic and smooth rendering of an image on the screen. However, there have been reports that this feature causes flickering and other screen problems when turned on. So if your external display has this feature, try turning off to see if the problem goes away.
4. Reset Your Mac’s SMC.
The System Management Controller or SMC manages a lot of aspects of your Mac, including the display. So if you’re having screen issues, such as the HDMI not working on Mac after Catalina update, resetting the SMC might help.
To reset the SMC, follow the steps below.
- Shut down your Mac.
- Hold the left Shift + Control + Option keys together, then press and hold the Power button down.
- Wait for 10 seconds, then let go.
- Turn on your Mac again.
If you’re using an iMac or a Mac Mini, here are the steps to reset the SMC:
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- Shut down your device.
- Unplug the power cable.
- Wait for at least 15 seconds.
- Plug the power cable back in.
- Turn on your Mac.
Once your Mac’s SMC has been reset, check if you’re still getting screen problems on macOS Catalina.
5. Reset NVRAM.
If resetting the SMC does not fix your problem, you should try resetting the NVRAM this time. To do this:
- Shut down your Mac.
- Turn it back on, then immediately press and hold this key combination: Option + Command + P + R.
- Wait for at least 20 seconds, during which your device might appear to restart.
- Release the keys when you hear the second startup sound or when you see the Apple logo appear and disappear for the second time.
Summary
The release of macOS Catalina has also introduced a lot of bugs and issues that Apple needs to fix, including the HDMI signal problem on external displays. Rolling back to macOS Mojave is not an option because this method does not fix the issue, according to user reports. So instead of waiting for an official fix from Apple, you might want to give the methods above a try.