HDMI (High-Definition Multimedia Interface) is a widely used interface for transmitting audio and video signals between devices and displays.

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HDMI Display failure on Mac Mini (late 2012)

I have a late 2012 Mac Mini running OS X Mavericks (10.9.5). When I hook up two displays to the Mini (one Thunderbolt, one HDMI) it will configure and work properly for a time. After 1-2 hours, or ...
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HDMI output problem with late-2013 13 inch macbook pro with retina

I just bought late-2013 13-inch MacBook Pro with retina. I want to connect it to my Samsung 32'' TV at home and DELL u2412m monitor at work. None of these connection is working right now. MacOS X ...
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External monitor displaying only noise after Yosemite upgrade

After upgrading to Yosemite, I see just noise on the external monitor, using a MDP to HDMI converter and an HDMI to DVI cable. It worked very well on Mavericks. I have no display now after updating, ...
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1answer
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30hz vs 60hz 4K output

I am currently using a MacBook Pro 13" 2015 model with a Samsung U28D590 UHD display. Currently I am using the HDMI port of the monitor with a mini-displayport to HDMI adapter and receive 4K 30hz ...
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4answers
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Will 27' 2560x1440 Korean IPS monitor (brand: Crossover) with DVI-D output work with MBP retina?

I have a 15' MBP retina (which has HDMI and Thunderbolt interfaces for connecting to external displays). I was planning to buy this 27' Crossover monitor (one of those Korean displays that have ...
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2answers
27 views

HDMI to DisplayPort Not Working

I have a Macbook Pro and a QHD BenQ monitor here. Should it be supported to connect these two devices using a HDMI to DisplayPort cable (So HDMI on Macbook DisplayPort on monitor)? For me it just ...
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EDID loss on HDMI switching

I have a LCD tv hooked up to an HDMI switcher flipping between a Mac Mini (2006 snow leopard using a DVI - HDMI cable), cable tv and dvd player. Trouble is, whenever the switch goes away from mac ...
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Mac mini (Late 2014) and 4K TVs

Based on Apple's documentation, my Mac mini (Late 2014, mid-range model with Intel Iris) should be able to support 4K video through HDMI. I've plugged in my Seiki 39" 4K TV (SE39UY04), but when the ...
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3answers
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Connect a Thunderbolt Display to windows 8 desktop

I've been spinning around with this question but couldn't find the answer. Hope someone here could help. I have been trying to connect my Windows 8 desktop to a Thunderbolt Display 27" without ...
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20 views

How to reach full resolution potential with MacBook Pro 2012?

I have a MacBook Pro (13-inch, Mid 2012) running OS X El Capitan version 10.11.4. I am attempting to use an external display with my Dell U2715Q (has 4k capabilities). I purchased an AmazonBasics ...
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28 views

Macbook air 2015 + elgato thunderbolt 2 doc to use two external displays

I have a 2015 Macbook Air running Yosemite v10.10.5. I recently purchased a Elgato thunderbolt 2 dock and would like to connect two external monitors. One using thunderbolt-to-DVI and the other using ...
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2answers
23 views

Can MBP 13 mid 2012 send audio and video through thunderbolt to HDMI?

I own this model: https://support.apple.com/kb/sp649?locale=en_US And I have an adapter thunderbolt to HDMI that works wonderfully with video, but no audio. Does someone has any advice on a product ...
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2answers
471 views

Can I prevent OS X from resizing and moving windows when sleeping while attached to an external monitor?

I have my Retina Macbook Pro connected to a ASUS 2560x1440 display via the HDMI port. I keep the laptop lid closed so the monitor is the only display in use. When I sleep my computer (via hot corners ...
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1answer
20 views

Mac — HDMI to USB/Thunderbolt

I know there are small USB boxes which are able to pass through image from HDMI (and record it) to computer. Is there something similar which would enable me to see stuff from HDMI on my Mac? Why: I ...
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33 views

HDMI not working anymore on MacBook Pro

HDMI has been working fine for as long as I remember. However, today when trying to connect it to my Sony TV, the HDMI wasn't working. It's not the cable or TV (tested different laptops/cables) so it ...
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3answers
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2013 Macbook Air not showing 1440p Option on External Display

I have a mid 2013 Macbook Air with the Intel HD 5000 graphics chip. I recently purchased a 27" Acer K272HULbmiidp 1440p (2560x1440) monitor that just arrived today. I connected it via a mini ...
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4answers
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MacBook Air 2012 Mini DisplayPort not working with HDTV

I'm trying to connect my 2012 11" MacBook Air to my Panasonic p60st60 1080p plasma HDTV using a new Monoprice Mini DisplayPort to HDMI adapter & 6' HDMI cable. My TV displays a "No signal" ...
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1answer
41 views

Is it fundamentally impossible to have passive thunderbolt to dual-link-DVI or HDMI adapter supporting 2560x1440?

Is it fundamentally impossible to have a passive (NOT the expensive USB-powered active ones) thunderbolt/mini-displayport to dual-link-DVI or HDMI adapter that can support 2560x1440 external monitor?
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2answers
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External Monitor not working on MacBook Pro 2015 with HDMI-VGA converter

I have an HDMI to VGA connector and a Samsung LED screen. The screen is fine, the VGA cable is fine, the connector is fine (tried with different laptops running Ubuntu and Windows). The Problem: ...
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1answer
4k views

How do I reset/clear my external display settings in 10.9?

I messed up the settings for the clamshell display mode on my MacBook Pro. I can't get my external display to work when I close my laptop. I can get all other modes working (standard mirroring and ...
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Sharing screens/monitor between Asus Laptop and iMac

I have the following equipment: An iMac 27" (mid-2011 windows 8 BOOTCAMP with 2 thunderbolt port and 1 miniDisplayPort) An ASUS ROG laptop (with 1x VGA port/Mini D-sub 15-pin for external monitor / ...
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1answer
24 views

HDMI Input onto a MacBook Air

I have a Canon DSLR camera and I am trying to get the output from the camera onto a MacBook Air so I can then AirPlay the MacBook to a different Room. The other room is on the other side of a school ...
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Mac mini 2014? Connecting to a 2nd monitor

I currently have a mac mini with a thunderbolt connecting my vga monitor to this. I now want to connect a second monitor but my problem is this....I only have a hdmi female in the mac mini and the ...
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2answers
656 views

wifi and hdmi problems on OS X yosemite (macbook pro 15-inch retina, late 2013)

Just wondering if anyone has been having this issue and found a workaround: My wifi works consistently both on Ubuntu and Android. Sometimes it also works on OS X, other times it does not - not even ...
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4answers
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Troubleshooting HDMI connection between MBP and Sony Bravia TV

I'm trying to connect my MacBook Pro (late 2011) running Mavericks to my Sony Bravia television like so: MBP thunderbolt port -> Mini DisplayPort cable -> HDMI cable -> TV HDMI 1 port. However, I'm ...
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16 views

How to display non-DV video signal with Firewire input?

Is there any way to get the video signal output from a Displayport (mDP) or Thunderbolt (1 / 2) socket into a Firewire (FW800, IEEE 1394) input? What cables, adapters and drivers or other software ...
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1answer
35 views

Can I use a USB to HDMI converter to set up 2 external monitors on my 2015 Macbook Air?

Can the Macbook Air (2015 model) power a second external monitor via it's USB port (using a USB to HDMI cable)? I would also need to connect an external keyboard and mouse, so I plan on getting a USB ...
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1answer
3k views

Macbook Pro detects the screen, but external screen stays black (mini dp to hdmi)

I am trying to connect my MacBook Pro (OSX 10.9.3, 2.4 GHz Intel Core i5, 8GB DDR3) to Panasonic Viera TH55AS670D LED TV through Mini DP to HDMI connector. When I connect the wire my laptop screen ...
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37 views

External monitor cuts out on MacBook with Multiport Adapter

I have a newer MacBook with only a USB-C port. I use an Apple USB-C Digital AV Multiport Adapter, and the HDMI output has worked in the past. When hooked to my new ASUS monitor with an HDMI cable, ...
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Can one buy an Ethernet and HDMI Thunderbolt adapter?

I need both of them and I am wondering if it is possible to buy them together or if I have to get two separate items? Also I am seeing a lot of third party Thunderbolt>HDMI adapters for cheap and ...
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Some Applications Muted on Mac when External Displays Connected

For some reason, whenever I plug in my external displays to my MacBook Pro (Retina, 15-inch, Mid 2014), certain applications seem to mute themselves. My audio output is set on Internal Speakers. One ...
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518 views

How can I stop sound switching to internal if I close the lid on my MacBook while playing video on HDMI-connected TV

If I connect an HDMI cable to my MacBook (mid-2010 white model, Mavericks 10.9.2) and play a video, then the audio comes out of the TV - so far so good. If I then close the lid while the video is ...
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4answers
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Force external display refresh rate

I have a 27" screen which is connected to my mid-2012 MacBook Pro retina through a HDMI/DVI-D (HDMI on the MacBook Pro, DVI-D on the screen). Before I was using a adapter DisplayPort+USB/DVI-D and I ...
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1answer
23 views

Using an iPad to view video from a set top box / DVD player over HDMI?

From time to time I need to test set top boxes / DVD players, currently I carry around a 20" HDMI monitor to test them on, but is it possible to use an iPad as an display with an HDMI input adaptor ...
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5answers
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Desktop icons have disappeared after using HDMI cable (Yosemite)

I had a strange issue recently where I had to reset PRAM after using an HDMI cable with my MBP (it had a blank screen on boot). I feel like this is again related to the HDMI cable. After using it, ...
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Resolution problem on external display with Thunderbolt->HDMI adapter

Let me explain problem in quick bullets: What I want: I would like to use ultra wide external display with 3440x1440@50hz resolution with my MacBook Pro (Retina, Mid 2012). I would like to use my ...
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3answers
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HDMI VGA projector cannot connect to Macbook Pro

Why doesn't the projector find the Macbook Pro when connecting a VGA cable to the HDMI port on Macbook Pro via an adapter? It does work on a Windows machine. I know that to fix this problem one needs ...
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How do I record HDMI input to a file with my Mac

So I have an HDMI signal and an HDMI to USB adapter. I need to record this HDMI signal to a video file. Zero budget. Will plugging this into my Mac work as a video input? If not, how else do I do ...
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1answer
54 views

2 External monitors on 21,5 iMac Late 2009?

So I wonder if I can use 2 external monitors on my Late 2009 21,5 iMac? I currently use 1 external monitor and it works great but I now want to sell it and use 2 external monitors but there is only ...
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3answers
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Connecting 2015 15" Retina MacBook Pro to Dell U2715H?

What would be the 'best' way to connect the 2015 Retina MacBook Pro to a Dell U2715H monitor? If I wanted to use the monitors USB 3.0 ports and also output sound to a Dell soundbar, how many cables ...
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2answers
2k views

Where can I purchase Female Thunderbolt to HDMI cable?

I have a Apple Thunderbolt Display 27 which I want to use in Windows machine with HDMI port only. So I basically need to cable which will have female thunderbolt port in one side and male HDMI port in ...
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6answers
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Connect 2 external Monitors with Belkin's Thunderbolt 2 Express Dock HD

I need a little help here, I have attached my MacBook Air Mid 2013, to an Belkin Thunderbolt 2 Express Dock HD. On the product page it says that one can connect two monitors. The only condition is ...
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macbook pro to external monitor 1920px via hdmi?

I just got macbook pro 13inch retina and the default resolution is 1280px width, and maximum is 1600px. If I connect this laptop to an external monitor via HDMI which has 1920px resolution, will the ...
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MacBook Pro Connected to External Monitor issue

I connect my Macbook to an external LCD screen, using their VGA and HDMI ports. When I try: The LCD is black with no signal The MacBook flickers LCD screen, VGA-HDMI cable checked and work fine. ...
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534 views

Are HDMI to VGA converters/adapters compatible with Mac?

Recently I purchased an HDMI to VGA adapter that actually converts the digital signal to an analog VGA signal to connect a computer to an external monitor. It works perfectly with a Windows PC that I ...
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56 views

How not to miss the elimination of Optical Audio Output from 3rd to 4th gen Apple TV

I speculate that the audio signal at the Optical Audio Out of the 3rd generation Apple TV is always the same audio signal within the HDMI output. I further speculate that that's the reason behind ...
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Driving a 4K display at 60Hz with rMBP

I've been Googling so much my eyes hurt. I have a 2014 rMBP. I want to use it with a 4K display or UHD TV at 60Hz that's at least 30" big. From my research, this means either using something with a ...
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28 views

3xHDMI out of a single Thunderbolt port - 2015 MBP

I'm planning on purchasing 3 HDMI monitors to use as a workstation for my MBP. For the sake of ease and convenience, instead of using the native HDMI + 2 mini DP to HDMI adapters, is there any way to ...
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Volume Keys not working with HDMI audio on mac OSX Lion?

I have a mac mini 2011 with OSX Lion. And I have connected my monitor (with integrated speakers) through hdmi port. The sound is working fine, but the volume keys on the keyboard don't work. When I ...
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124 views

What non-Apple external monitors are currently recognized as 2 pixels per point?

I was thinking about getting a Dell 4k or perhaps a 2560x1440 display, but then I realized that not all non-Apple displays are recognized as 2 pixels per point even though the ppi is high enough. Is ...