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

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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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16 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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12 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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1answer
104 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 ...
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1answer
53 views

MacBook Pro Retina 15 connecting a 4k monitor

Just got a new MacBook Pro 15 Retina (mid 15). I have an Acer 4k-monitor which I'm looking to connect to the MacBook but I can't figure out how. The Apple website and FAQ's weren't helpful. I want ...
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1answer
20 views

System volume locked on Mac mini when using HDMI audio

I just connected my Mac mini (Late 2012) to my TV using HDMI. Now, all works good, except that I cannot set system volume on the HDMI link. That is, if I switch from built-in speaker to HDMI audio, ...
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39 views

My iMac detects a samsung external monitor, but nothing comes up on the display

I've got a late 2013 iMac running OS X El Capitan and am trying to get a second screen for work. Its a Samsung LED Syncmaster SA350 Series (Plug & Play). When I plug it in, nothing but a black ...
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1answer
105 views

Can I use my MacBook Pro (Retina, 13-inch, Early 2015) with 4k (3840x2160) LG 40" ub800t TV @ 60Hz refresh rate?

As the TV only has HDMI 2.0 ports, I am considering to buy a thunderbolt to HDMI 2.0 adapter. but I want to know that whether this combination will give me the 60Hz refresh rate at 4k resolution.
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32 views

Switching HDMI input to Apple TV causes crackling noise and strange video

When I switch HDMI inputs on my TV from Tivo or Blu-ray to a sleeping Apple TV (4th generation, with apps), I get nasty crackling electronic interference noise on the sound system plus weird ...
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24 views

Can a faulty HDMI cable damage macbook

I tried to connect my rMBP mid-2014 to a TV through an HDMI cable. I first plugged the cable to the TV. when plugging the other end of the cable to the HDMI port on the macbook, I heard some crackling ...
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1answer
138 views

MacBook Pro Screen Flickering when using HDMI to VGA adapter to connect to external monitor

My MacBook Pro 2014 keeps flickering when I plug in a HDMI to VGA converter to it. I am using HDMI to plug in the HDMI to VGA converter (which is plugged in to my monitor). The screen is just black ...
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1answer
106 views

Connect MacBook Pro 2015 to iMac 2015 with HDMI?

I forgot to bring my "Thunderbolt to Thunderbolt" cable to connect my MacBook Pro to my iMac screen. I do not wish to spend again all that money to go buy one now. The only thing I have here is a ...
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1answer
27 views

MBA & VGA monitor, using strange reduction Thunderbolt-HDMI-DVI-VGA

I have latest Macbook Air and I want try to use VGA monitor. I don't have MiniDisplayPort to VGA reduction, but this: I know that DVI-VGA worked fine on with my old PC, so I don't understand, why ...
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1answer
296 views

Stopping Dell P2715Q monitor flickers with MacBook Retina 12" (2015)

I have recently purchased both a Dell 4K display (P2715Q) and a new Macbook (Retina, 12", 2015). According to Apple's website, the MacBook should be capable of driving the display at full resolution ...
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10 views

Everything chopping after I power off additional monitor or TV

I'm using iMac mid 2014 with additional monitor (one thunderbolt to HDMI) and connected TV (Panasonic Smart TV on other thunderbolt to HDMI). Everything is ok and working perfectly, but I'm using TV ...
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116 views

Use an iPhone as cabled webcam / capture camera stream from hdmi out?

I am wondering if there is a way to use an iPhone as a usb webcam. I saw solutions for wifi and friends but none of them seems to work for a cabled connection. Alternatively, I know that it is ...
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160 views

No sound on external monitor using El Capitan

Although this question has been asked and answered many times on this for earlier OSXs, I have not found a solution here or elsewhere that works with El Capitan. The problem is: No audio when playing ...
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24 views

How do I get all three monitors to work with 2015 Mac mini?

I have a 2015 Mac mini with two monitors hooked up out TB-VGA adapters. A HP and a Compaq. Today I added (or tried to add) a samsung 24" with the HDMI. Since adding the samsung, I can only get my ...
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66 views

How can a Mac mini drive 3440 pixels wide display instead of 1920?

I've bought a new 21:9 IPS screen with a native resolution of 3440x1440px. The display has only two inputs: 1x DisplayPort which is connected to a workstation and 1x HDMI port which should go to my ...
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98 views

Connect MBP 2015 to 2560x1440 IPS monitor via HDMI?

I would like to connect my Crossover IPS monitor which only has a single dual-link DVI port on it to my MPB I realise that by paying the apple tax of $165 I can get one of apple's buggy dual-link mini ...
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1answer
79 views

Need some advice/solutions on having 2 external displays set up

I have a 2015 13" Retina MacBook Pro that comes with 2 Thunderbolt ports and an HDMI port. I have 2 monitors which have same resolution (1920x1080) and same size, and they also only have DVI and VGA ...
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1answer
44 views

Connecting an old Mac to home entertainment system

I have an old MacBook Pro, with DVI-out video, analog audio (earphone and speaker ports), and of course USB. I'm using it to manage my iTunes library, but the only way to play iTunes content on my ...
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30 views

MacBook Retina 15" HDMI glitches

I have a 15" Retina MacBook (mid-2012), and I encounter issues with HDMI external displays. Sometimes, the connected display will turn either totally black or with white noise for a few seconds, and ...
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61 views

Wifi problems when using mini display port

I have two monitors that only have HDMI ports. With my late 2013 Macbook Pro, I connected one using the HDMI port and another with a mini Displayport to HDMI adapter. Specifically, I bought this ...
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1answer
233 views

Macbook Pro connected to HDMI, but no sound?

I have a Macbook Pro 13" and it's a mid 2012 model. It's hooked up to my TV through the HDMI cord as well as the mini display adapter and the display is great, but there's no sound at all. My computer ...
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1answer
211 views

HDMI/Displayport audio control for OS X

I have a Macbook Pro Retina, running OS X 10.10.5, and a BenQ GW Series GW2765HT monitor, which does not allow audio adjustment via my computer. I've tried Soundflower, but find that it is buggy and ...
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1answer
2k views

Can I connect Amazon fire TV/fire TV stick to my Macbook Pro instead of TV?

If I just replace a TV with Macbook Pro, does it work? I haven't tested it yet. Please give me some suggestions. Thanks.
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34 views

HDMI to DVI-D works only when an additional VGA device is connected at start

I have a problem about connecting DELL P2014H monitor to my macbook pro (13" retina, 2013 late). Monitor does not respond when I connect the HDMI-DVI-D cable but, If I connect HDMI-DVI-D cable and ...
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1answer
402 views

Mac Book Pro Retina Failed to Connect External Monitor via HDMI port with Intel Iris

I want to connect my MBP 2015 to my external monitor http://www.asus.com/Monitors/VS239H/ through HDMI port. I found out that by using AMD Radeon, my MBP's battery is draining fast and the fan is ...
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33 views

How to use a Mac Mini to power 4 tv's

We are looking to setup monitoring and a dashboard at work, and want to use a Mac Mini powering 4 Samsung 50" TVs (1080p). According to the official Apple Spec, it only supports 2 displays using the ...
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2answers
88 views

Display's native resolution not registering properly

I've got an HP monitor (specs here) that is supposed to display natively in 1080p. I've used it for years in this setup no problem. Last night I upgraded my Mini to a newer model, and when it was ...
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1answer
156 views

How do I connect an external display to my Macbook Pro?

I have a Macbook Pro (Late 2013). I'm trying to mirror the display on a LG M2035A. The monitor accepts VGA input. The monitor comes with a VGA cable. So, I purchased a HDMI to VGA converter, to ...
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22 views

2 monitors and 2 HD tv form late 2013 MacPro - can this be done?

I have 2 x 28" LED monitors connected to my late 2013 6 core MacPro (the back bin shape) by HDMI from monitors to mini display ports in the back of the Macpro which work great - But I want to add a ...
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1answer
573 views

Can 2013 MacBook Air output to 2560x1080?

I recently purchased a 21:9 LG monitor (model 29UM57) and I'm having difficulty getting my 2013 MBA to output to 2560x1080, which is the monitor's resolution. My max resolution is 1080p. I purchased ...
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63 views

External Display on Macbook Pro 13" Late 2011

I have a Macbook Pro 13" late 2011 and a DELL S2340L Display. I am using a mini display port HDMI adaptor to connect to my dell monitor. I have had no problems using the native display resolution of ...
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1answer
264 views

Using iMac 27" for displaying HDMI output

I have an HD satellite box which I previously connected to my old PC. I am interested in using my new iMac 27" 5K as a monitor for its output. I did go through the various answers available, but some ...
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1answer
403 views

Connect 3 monitors to Macbook Pro retina early 2015 13"

I've seen multiple system setups where people connected 3 external displays to their macbook pro retina 13". So I bought 2 Mini-Displayport to VGA and 1 HDMI to VGA adapters. The adapters are working ...
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46 views

Force Mac OS X to Register USB devices

I'm using an HDMI CEC adapter connected via USB to my Mac Mini (Machine model Macmini6,2). Often when the Mini is rebooted it fails to register the adapter. Unplugging and replugging the USB cable to ...
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58 views

Thunderbolt to HDMI no image

I purchased this adapter (it is not original) and when I connect my macbook to a TV (Sanyo) the macbook detects it (it even blinks) but I get no image on the TV. Is there something I need to configure ...
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1answer
147 views

Retina MBP 2015 does not recognise third external monitor

I am trying to get this system to run: Laptop lid closed. 1 Monitor connected with DVI-miniDP adapter to a thunderbolt port 1 Monitor connected with DVI-miniDP adapter to a thunderbolt port 1 ...
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1answer
116 views

How to force Mac screen resolution?

Whenever I connect my Mac FireWire-to-HDMI to a large-screen TV, the resolution on my MacBook Air 11″ becomes larger and more content fits on the screen. In other words, everything scales down and it ...
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1answer
1k 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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100 views

How to avoid external display going off after I unplug a MacBook from the AC Power?

When I have my MacBook Pro 10.10 connected to the AC Power my external display connected through HDMI works fine. As soon I disconnect the MacBook from the AC Power and start running on battery, my ...
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49 views

Mac mini 2010 HDMI displays static

I've got a mid 2010 mini connected to my TV via HDMI. When I boot the computer, the Apple logo appears with a progress indicator just fine. However after several seconds the screen blinks and then ...
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1answer
392 views

AppleTV 3rd Gen Displaying 'static' randomly

We have a third generation AppleTV that has just started giving us trouble (after moving - although the unit was properly packed and transported, so I do not expect damage from this). Randomly when ...
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1answer
211 views

Use iMac 27" in Target Display Mode with Raspberry Pi

I have this little box called the Kanex XD HDMI to Mini-Displayport converter. It works perfectly with a lot of machines (tried it with a Macbook, PS4 and Xbox 360), but some devices don't seem to be ...
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187 views

Change refresh rate/resolution on Seiki 4k using Mac Pro via HDMI?

I have a late 2014 (current model) Mac Pro and I use a Seiki 50 inch 4k TV to for that computer (the seiki does 30hz at 4k and should do 120 at 1080p). I use the HDMI port on the Mac Pro to directly ...
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952 views

HDMI & VGA issues with MacBook Pro Retina & Acer Monitor

I'm having a very strange issue. I inherited an Acer monitor from a friend that is full HD, 1080p. Good monitor overall. When connecting ONLY an HDMI cable from my Mac to the monitor, I get no signal. ...
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101 views

2 External DVI Monitors from 1 Thunderbolt 2 port on Macbook Pro Retina late-2013 or better option

I have read some topics on here regarding the title. It sounds like, for the most part, running two displays from a single Thunderbolt 2 port doesn't really create an extended desktop, but a stretched ...
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1answer
62 views

Dual external monitors?

I am trying to switch from using my desktop to my macbook pro as my primary machine. I have 2 monitors (each 1600x1200 resolution) I'd like to use as external monitors for my macbook pro (from 2013). ...