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Questions tagged [hdmi]

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

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24 votes
2 answers
33k views

MacBook [Pro] or iMac - how many displays, what resolution/frequency?

How do I find out the number, type, resolution & refresh rate of additional monitors I can attach to my MacBook or MacBook Pro? This is an attempt at a canonical QA, as per the Meta QA - Where is ...
Tetsujin's user avatar
  • 116k
11 votes
2 answers
27k views

MacBook Air occasionally freezes when external monitor is connected

I bought an ultra wide monitor (LG 29UM58) the other day. To hook it up to my Air, I convert a mini-DP signal to HDMI. With two different cables, I started noticing occasional latency on the signal ...
Pieter's user avatar
  • 453
10 votes
3 answers
13k views

External monitors show blank screen until restart

MacBook Pro (15-inch, 2016) with 2 USB-C to HDMI adapters. The setup works great if I start up in that configuration. If I connect the adapters while the machine is running or simply sleeping, one ...
Pez's user avatar
  • 111
0 votes
1 answer
2k views

What's wrong with HDMI? [closed]

I have seen comments in various posts here to the effect that HDMI is to be avoided. Can anyone explain what the problem is with HDMI, and why it's a bad thing? More specifically, I have a 2nd monitor ...
benwiggy's user avatar
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3 votes
1 answer
4k views

External Monitors Flicker when plugged into my Mac

Seeing as I am going to be working from home the next couple of weeks (or possibly longer...) I purchased some USB-C to HDMI cables to plug my work Mac into my desk monitors. They display correctly, ...
user3213262's user avatar
2 votes
1 answer
2k views

MacBook Pro detects syncmaster (monitor) but doesn't display

My new MacBook Pro 13" touch bar is connected to my Samsung Syncmaster monitor through USB-c hub -> HDMI -> DVI. It detects the screen (shows up on OSX) but nothing is displayed on my screen. I have ...
Nate's user avatar
  • 131
4 votes
3 answers
7k views

MacBook 4K/60Hz adapter is working directly, but not via USB-C hub

I have the Apple MacBook 12" (2016) 1,1GHz 256GB Silver and a 4K/60Hz monitor. I have tried this hardware to connect the displays at 4k/60Hz: Anker® Aluminium USB C Type C to HDMI Converter, ...
ujjain's user avatar
  • 444
0 votes
1 answer
795 views

Logical HDMI display reconnection

I have a Mac mini server with Yosemite, and I plugged a VGA Display using a VGA/HDMI adapter. The issue is, when I shut down or restart the server, the display is not recognized, then I need to go to ...
Alberto Guzmán's user avatar
8 votes
5 answers
75k views

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 ...
Callitaday's user avatar
4 votes
1 answer
323 views

Connecting second screen via Thunderbolt and HDMI

So my problem is the following: At home I am connecting my MacBook Pro (macOS Sierra installed) to a second screen using the HDMI port. If I do that, and already have my mac running, on that second ...
Dr.AbeNickIanEdLewis's user avatar
3 votes
2 answers
1k views

Macbook and 4K monitor

Please, does anyone know whether Macbook (2015) with MacOS Sierra (10.12) is able to drive Dell P2415Q 4K (3840x2160) monitor at 60Hz? What dongles do I need? I have USB-C Digital AV Multiport ...
Rhem's user avatar
  • 33
62 votes
3 answers
72k views

How to stop sound output switching to a monitor when it gets plugged in?

When I plug my (HDMI) display into my laptop, the sound output switches to it. I can switch it back, but is there any way to stop this automatic switch? (I've found many people complaining, but no ...
tog22's user avatar
  • 943
39 votes
2 answers
39k views

rMBP kernel_task spikes when connecting more than one external monitor

When connecting a second external monitor kernel_task spikes to 600%+. This makes the computer unusable. Before Yosemite, this worked fine with 3 monitors. Here are the specifics: When I connect ...
vaughan's user avatar
  • 1,691
35 votes
5 answers
23k 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 ...
Aaron's user avatar
  • 607
13 votes
1 answer
7k views

Does USB-C to HDMI take more processing power than direct USB-C to DisplayPort?

I have a MacBook Pro (13-inch, 2016, Two USB-C ports). My company bought a USB-C to HDMI adapter to connect a screen that has both HDMI and DisplayPort. I'm having some issues unrelated to the ...
Lluis Gerard's user avatar
3 votes
2 answers
11k views

Connect 2 external monitors (1 VGA + 1 HDMI) to MacBook Pro

I have a 13" 2017 MacBookPro. I wish to connect two monitors to it, a Samsung HDMI monitor and a LG VGA Monitor. I am using an Aukey Multiport USB-C Adapter. I can't connect the two monitors at the ...
Marco Gagliardi's user avatar
1 vote
2 answers
11k 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 ...
Bharat Soni's user avatar
0 votes
1 answer
242 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 ...
Mailo Světel's user avatar
18 votes
5 answers
28k views

External monitor stays black after "locking" (or sleeping) [duplicate]

I have a Mac Book Pro (latest 2017 touchbar model) which I am using in clamshell mode. Meaning: its lid is closed, and I work with two external monitors. Both monitors are a bit older; they have DVI ...
GhostCat's user avatar
  • 967
13 votes
4 answers
37k views

Can a MacBook Air support 2560x1600 output via HDMI using a Mini DisplayPort/Thunderbolt to HMDI adaptor?

The HDMI 1.3 spec can carry signals with resolutions as high as 2560 x 1600 pixels. Is it possible to output this high a resolution signal from a MacBook Air using a Mini DisplayPort/Thunderbolt to ...
jjxtra's user avatar
  • 480
9 votes
1 answer
28k 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 ...
Rushil Srivastava's user avatar
7 votes
2 answers
35k views

How to solve Mini DisplayPort to HDMI Overscan problem? (Part of the screen is missing)

I use the latest model of iMac 27 inch and output to an Samsung 40 inch HDTV, and found that the Menu Bar is missing on the HDTV. This is usually known as the "overscan" issue, that the top 10 or 15 ...
nonopolarity's user avatar
  • 9,598
7 votes
2 answers
15k views

Incorrect external monitor resolution detected, true resolution not available

I have a BenQ EX3501R monitor connected by HDMI to my MacBook Pro, which is a Early 2015 model. The issue being that OS X gets the resolutions completely wrong - the monitors native resolution is ...
TotalWipeOut's user avatar
7 votes
1 answer
23k views

Which Macs support HDCP on their built-in / native displays?

Which Macs, both desktop and portable, support HDCP on their native displays? The web is awash with information on connected displays, and which support it, don't support it, and stories of people who ...
duozmo's user avatar
  • 2,129
4 votes
2 answers
26k views

MacBook Pro 13" 2016 - How to set up dual monitors?

I own the MacBook Pro 13" 2016 model. It has two thunderport 3 ports on the left side of itself. I have two Samsung monitors with a HDMI IN on both monitors. Do I need to buy two Thunderbold 3 to ...
NewMacBookProOwner's user avatar
4 votes
1 answer
3k views

Display connected via DisplayPort disconnects, reconnects when resuming, resizing windows on display

I have a new LG 29UM55 29" Ultrawide monitor, resolution of 2560 x 1080, connected via DisplayPort to my 2012 MacBook Air 13" via a Cable Matters Mini DisplayPort to DisplayPort cable that reportedly ...
Colin Dean's user avatar
3 votes
6 answers
8k 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 ...
Aaron Gibralter's user avatar
2 votes
1 answer
2k views

External Display recognized as DisplayPort, but connected via adapter using HDMI

I'm trying to connect a brand new macbook Pro with 2 USB-C using an adapter with HDMI. The macbook detects the display, but the Connection Type is DisplayPort. Is there a way to change it? Screen ...
Lukasz Madon's user avatar
2 votes
2 answers
11k 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 ...
Mathijs Segers's user avatar
2 votes
1 answer
3k views

How do I connect a 3rd 4K monitor to my 2013 Mac Pro?

I have a Mac Pro 2013. I already have two 4k monitors now connected to the HDMI port (Bus 0) a thunderbolt port with a TB->HDMI adapter (Bus 1) Before I simply buy a third monitor and adapter, is it ...
Beau D'Amore's user avatar
2 votes
1 answer
3k views

Question about USB C and DisplayPort

I recently purchased a 2017 MacBook Pro 13" no Touchbar, so I have just 2 USB-C ports available. I've spent literally like 2-3 days looking for the perfect USB-C Dongle (I like the ones that take the ...
Le Fernandé's user avatar
1 vote
1 answer
263 views

How do different methods of connecting USB-C display work?

There are multiple ways how we can connect an external display via USB-C to an Apple device (say MacBook Pro). For example: directly (e.g. LG UltraFine) using Apple's USB-C to HDMI/VGA/DVI dongle ...
Petr Peller's user avatar
0 votes
1 answer
2k views

MacBook Pro 13 (early 2015) with 4K Television: Can I get 60Hz?

The TV has only HDMI inputs. I've found cables on the Internet that will connect Mini DisplayPort to HDMI: AmazonBasics Mini DisplayPort to HDMI Cable - 3 Feet My question is, will I get 60Hz when ...
Derek Alvarado's user avatar
32 votes
8 answers
234k views

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 ...
avetis.kazarian's user avatar
25 votes
6 answers
11k views

MacBook doesn't remember Screen Orientation

I've got at work two external displays + a MBP 13" 2017. (OS: Mojave 10.14.1 Beta) The monitors are both BenQ (GL2450), connected via HDMI to a Thunderbolt 3 port. (one through hub, one through plain ...
TheRealHypo's user avatar
25 votes
8 answers
42k views

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 ...
DkAngelito's user avatar
19 votes
6 answers
47k views

What is the max resolution output by the HDMI port of the MacBook Pro Retina?

Does the MacBook Pro (Retina, Mid 2012) output 2560x1600 to the HDMI port? The reason I ask is that I would like to drive 2x30 inch 2560x1600 monitors while still using the Gigabit Ethernet adapter. (...
Kyle Brandt's user avatar
  • 1,017
18 votes
9 answers
97k views

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 ...
Physics_maths's user avatar
12 votes
1 answer
5k views

Send "soft power off" signal from a Mac via HDMI to a TV

How can I make a TV (a Sony W755C in my case) do a "soft power off" (same as when pressing the ON/OFF on the remote) by sending HDMI signals from a connected Mac? I think Apple TVs can turn TVs on ...
forthrin's user avatar
  • 2,631
9 votes
5 answers
40k views

Where can I purchase Female Thunderbolt to HDMI cable?

I have a Apple Thunderbolt Display 27 which I want to use on a Windows machine with only an HDMI port. So I basically need to cable which will have female Thunderbolt port in one side and male HDMI ...
avro3030's user avatar
  • 119
6 votes
2 answers
15k views

4K@60Hz MacBook Pro Late 2013 [duplicate]

I recently got a 4K 60Hz monitor for my 13" MacBook Pro Late 2013. It supports both HDMI and DisplayPort, but since the included cable is a full-sized DisplayPort cable, I'm currently using HDMI. Back ...
JustMe's user avatar
  • 81
6 votes
3 answers
11k views

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 ...
Alok's user avatar
  • 61
5 votes
1 answer
3k views

External display occasionally shows just noise

When I'm at work I have my Macbook Air mid-2013 hooked up to a Samsung SyncMaster 2443 display via a ThunderBolt-to-HDMI adapter and then to a HDMI-to-DVI adapter. Almost every second time I switch ...
aleksikallio's user avatar
  • 1,859
4 votes
0 answers
1k views

My monitor doesn't sleep if my mac is connected via HDMI: who's at fault?

I have a MacBook5,1 running 10.8, and an Asus VW246 monitor. I connected it to the monitor using a "MiniDisplayPort->DVI(f) adapter" + a "DVI(m)-DVI(m) cable". Now I've bought a single "...
o0'.'s user avatar
  • 2,006
4 votes
8 answers
53k views

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 ...
Eun's user avatar
  • 457
4 votes
3 answers
21k views

Can I use HDMI for audio only without video?

When I connect an HDMI display to my computer, it uses it as a display. I can't figure out how to use the HDMI cable for audio only and only use my laptop monitor. Is this possible?
aaazalea's user avatar
  • 196
4 votes
1 answer
2k views

Best practices for 2011 Mac mini connected to monitor + HDTV?

I'm dual-purposing a new Mac mini (2011) as a desktop machine and media center. I will be using a DisplayPort to DVI adapter to use with the desktop monitor, and a long HDMI cable to go directly to an ...
NReilingh's user avatar
  • 4,469
3 votes
1 answer
8k views

Belkin Thunderbolt 2 Express Dock HD dual monitor setup

I have the Thunderbolt 2 Express Dock HD (Model no. F4U085) and I have a question to ask. The dock is attached to a Macbook Pro and everything works fine (audio, ethernet, USB devices etc). However, I ...
VDA's user avatar
  • 43
3 votes
1 answer
18k views

How to solve the "overscan" issue if the iMac is connected to an HDTV and using BootCamp and Windows 7?

This question is related to both iMac and Windows, but since it is happening on an iMac 27 inch model, so I hope posting in the Apple forum is more relevant. Basically, when an iMac is connected to ...
nonopolarity's user avatar
  • 9,598
3 votes
1 answer
281 views

Triple screen on MBP 2016 13"?

I currently own a MBP (2016, 13", No Touch Bar) as well as an official Apple USB-C Digital AV Multiport Adapter (HDMI version). I have a second screen plugged in (Asus VS247H, HDMI, 24" 1080p), and ...
3rgo's user avatar
  • 153