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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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Can macOS 10.14 (mojave) output a 4K HDR desktop to a 4K HDR TV?

How can I get macOS 10.14 on my MacBook Pro (15-inch, 2016) to output the macOS UI (desktop) in HDR mode to my Samsung Q6F 4K HDR TV display? I'm using a USB-C/Thunderbolt to HDMI 2 dongle and an ...
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24 views

Cannot get 60 Hz on MBPr 13" 2018

I connect my Macbook Pro 13" 2018 with Mojave 10.14.5 to the external display Fujitsu P27-8 TS UHD via adapter Dell DA301. All the components of this chain are capabale of 4k@60Hz. However, I can only ...
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2014 MB air to Dell S2718D not showing QHD resolution

I have an early 2014 macbook air trying to connect to a Dell 27 inch QHD monitor (model S2718D) the monitor has 2 usb SS ports, a full size hdmi, and a usb-c port. I have a miniDp to hdmi cable that ...
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Macbook Pro to LG-40LX340H to HDMI - gives error “device has no output controls”

When I try connecting an LG-40LX340H to my early 2015 retina MacBook Pro via HDMI, I get "device has no output controls". The volume comes through and it's full blast with no way to control it. I ...
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23 views

Mirror a specific desktop

I have a MacBook and I’m using the latest High Sierra with 2 displays total, my MacBook and the projector. But I only want one (or specific) desktop(s) to be mirrored to the projector an external ...
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1answer
44 views

Mac mini 2018 hdmi white noise

I have 2018 mac mini, just bought it a few days ago, running OS X Mojave. And I have 2 monitors connected to it, 1 through usb-c and 1 through HDMI. Whenever I wake my computer up from sleep, the ...
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1answer
32 views

Should a late 2012 Mac Mini be able to drive these two monitors?

A Raven MTi2, which is 1080p on HDMI, and an LG 34U97, which is 3440x1440 on Mini DisplayPort. It works sometimes, but after an hour or so the LG just says "Out of Range". Sometimes with them both ...
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2answers
56 views

mac mini multi-display reconfiguring repeatedly

I have a new mac-mini with HDMI + 2 thunderbolt-hdmi adapters. Waking up the mini results in screen blanking repeatedly as it adds and removes displays. Repeatedly. Like 20 times. For 2+ minutes. I ...
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37 views

iOS screen recording while using external HDMI/VGA output?

On iOS devices, the screen recording feature does not function when an external HDMI or VGA adapter is connected. My (limited) understanding is that, essentially, iOS uses an AirPlay-like mechanism ...
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56 views

Getting an error when i connect external monitor Unable to find display pipe for IOFB service

I have a mid 2012 macbook Pro running Mojave 10.14.4 when i plug in the external monitor it detects the display however on the external monitor screen it say no input. I have checked all connections ...
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17 views

MacBook Pro MiniDisplay to HDMI, Detects external display but the monitor is not getting input [duplicate]

I have a mid 2012 Macbook Pro running macOS Mojave 10.14.4. When I plug in the external monitor it detects the display however on the external monitor screen it say no input. I have checked all ...
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1answer
28 views

How to chian two External Monitors with Macbook Air 2017 13" [duplicate]

About the Mac: Mac OS Mojave Version 10.14.4 (18E226) MacBook Air (13-inch, 2017) I wish to connect two external monitors with following specifications with my Apple device. one pure HDMI other ...
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1answer
45 views

Macbook Pro 2017 with 2 thunderbolt ports with triple monitor setup

I currently have a macbook pro with 2 thunderbolt 3 ports and integrated graphic card and a belkin dock that I use for work, but can't get work done with just 1 monitor. I have a triple 1080p monitor ...
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93 views

Best way to connect 2018 Macbook Pro to external display using a dock?

I have 2018 Macbook Pro with usb-c ports which I would like to connect a Dell UltraSharp U2715H monitor. (I have installed the DisplayLink software as recommended to ensure the monitor will work with ...
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3answers
212 views

Mac Mini 2018 - 3 monitors [duplicate]

I've seen this question for older versions of the Mac mini, but I'm struggling to find an answer for the Mac mini 2018. I want to connect 3 identical monitors (22inch 1080p). I'm currently able to ...
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97 views

Connect 30" Apple Cinema HD Display to 2018 Mac Mini

I am trying to run an Apple Cinema HD Display (30") from a 2018 MacMini. I have tried all kinds of HDMI- to DVI adaptors but so far no luck. I have also tried these connectors with a MacBook Pro ...
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20 views

MacBook Pro external display black @ resolutions higher than 1080p

MacBook Pro 13 inch 2018 Using Nucleum Adapter, HDMI to HDMI cable. I connected my MBP to an external display (native resolution is 2560x1440), it detects it fine, and even recommends this ...
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1answer
21 views

Overriding the default resolution on external monitor

I have an iMac 5K (mid-2017) and a USB-C to HDMI adapter. I used to have a standard 24" monitor (1920x1080) connected to the adapter, and it worked just fine; however, I have put a video capture ...
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1answer
251 views

Connecting Mac Book Pro 2017 to 2 Projectors via USB C

Just wondering can I connect my 13" MacBook Pro to 2 HDMI projectors? I would like to extend the displays ( 3 display, 1 laptop screen and 2 projector screen) instead of duplicating if that is ...
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1answer
23 views

Audio issue when HDMI drawing tablet is connected?

I'm running a 13" Macbook pro 2017 with operating system Mojave 10.14.4. I have an HDMI connected tablet (Huion Gt-220). When I connect my drawing tablet to my computer, it locks out my sound for the ...
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Why does my HDMI display -sometimes- need to be manually reconnected after sleep? [duplicate]

My 27" Samsung display stays connected to my 2015 MacBook Pro (MBP) at all times when I'm home via a standard HDMI cable. The display stays powered on. My MBP sometimes goes to sleep e.g., overnight. ...
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1answer
25 views

Connect Macbook Air with external monitor

I have a MacBook Air (13-inch, Mid 2013) that uses an Intel HD Graphics 5000. I also plan to buy the monitor that is supposed to have connectors for DisplayPort and HDMI with a resolution of 2560x1440 ...
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Can MacBook Pro/Air models with just two Thunderbolt 3 ports support two external HDMI displays? [duplicate]

With recent models (2018/2019) having only two Thunderbolt 3 ports, one used for charging, can a single Thunderbolt port support two external HDMI monitors? Does the video chip-set support it? Can the ...
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1answer
89 views

External monitor HDMI vs Displayport

I just got a nice 4K monitor (LG 27ud68p-b) and, when connected to my 2017 MBP 15" via USB-C to HDMI, the refresh rate is noticeably slow and results in choppy moving images. Even when it's not a very ...
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19 views

Weird problem with external display

I've just connected MacBook Pro 13" (new one with USB-C) to my external display (quite old Samsung, 24", 1920x1200) via HDMI and there is a weird glitch on the bottom of the screen. I used this ...
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1answer
205 views

2017 Macbook pro 13 inch 3 monitors help

I have done quite a bit of searching and haven't found a solution to my issue. I have a 2017 macbook pro 13 inch with touchbar. I want to be able to use 3 monitors 1080p via apple usb c digital av hub ...
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1answer
167 views

HDMI Stop working after Macbook OS Update

HDMI Stop working after Macbook OS Update to Mojave Version 10.14.3. Was working perfectly. I tested cable and monitor and it works on other laptops.
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1answer
57 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 ...
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0answers
18 views

Corrupted display on Mac Mini with two monitors

I have a Mac Mini (5,1 mid 2011) running High Sierra with two monitors connected, one HD and one ultra-wide. It's generally been fine, but sometimes (and currently every time) when I start it, one of ...
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86 views

HDMI not working on 2018 MacBook Air in Bootcamp Windows 10

I have a USB-C hub that includes an HDMI port. This works fine while running macOS but not in Windows 10 Bootcamp mode on a 2018 MacBook Air. My multi-part question is [a] is this a driver problem [b]...
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1answer
20 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 ...
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1answer
175 views

Use the HomePod to turn on TV and Receiver

is there any way to have the Apple HomePod control my receiver? Here is what I am thinking: I would ask the Siri HomePod to play a playlist and Siri would automatically turn on my receiver (Sony STR-...
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22 views

Secondary display says no input [duplicate]

I have a mid-2007 iMac (EMC 2133, 20"). I upgraded the CPU and WiFi card in order to run Collin Mistr's High Sierra Patcher tool. That worked fine. Now I need to connect a second display. I hooked ...
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1answer
35 views

Can I safely charge&use my macbook with the adaptor below? [duplicate]

I need to use an Ethernet cable, VGA monitor, usb connection and power cable in same time with my macbook. That's why i need an adapter because my macbook has only one usb-c port. Let me share a ...
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328 views

Can't get DELL U2717D to display retina quality on macbook pro 2017

I have a Dell Monitor U2717D and I tried connecting it to my 13 inch MacBook pro 2017 running MacOS Mojave. I tried using different cables such as 4K HDMI to USB C, DisplayPort to USB C, etc.. but the ...
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13 views

How to prevent iMac from using the second monitor but still using its audio?

I connected my AV receiver to my iMac via the Thunderbolt-to-hdmi adapter but I do not have any TV connected to the receiver, meaning no screen. The whole purpose of this was for being able to use ...
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2answers
172 views

OSX wont save external monitor screen arrangement settings, weird graphics issues with displays

Ive got a 27" iMac 4.2ghz i7, 16gb ram, 8gb GPU, running OSX 10.13.6 Ive got 2x external 1080p monitors connected to it via the thunderbolt ports using 2x of these HDMI to thunderbolt adaptors ...
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0answers
263 views

Use Apple monitor as second monitor for windows pc

I've an Apple monitor 27' with thunderbolt port, such the one in the picture below. Do you know how if it could be used as external monitor for a windows pc, that has not thunderbolt port?
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1answer
659 views

Screen blinking “HDMI no signal” when Mac is sleeping

I usually leave my computer, and let it go to sleep after 15 minutes. My external screen is showing a blue screen saying "HDMI no signal" every other minute while my MacBook is asleep, and the screen ...
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0answers
290 views

Setting TRUE 1080p output on Mac Mini HDMI?

At my church we have a display system that uses a HDMI splitter to drive three 1080 TVs as well as an old (might be relevant) 1080 monitor. We were running this setup off a 2012 MacBook pro with a ...
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0answers
64 views

MacBook Pro 13” screen dead - how can I use external display?

An authourised Apple store have told me I need a screen replacement after my screen went dead. When I connect the MacBook Pro (late 2013 model) to my Samsung TV via hdmi I see the log in screen on the ...
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1answer
21 views

displays - drive displays from USB-C hub

Is it possible to drive a monitor from a hub? If the hub was Thunderbolt 3 compatible and I used a USB-C to HDMI adapter, from the hub to the monitor, would this work? The monitor in question is a ...
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0answers
359 views

Mac mini (2014) won't output video signal over HDMI only via Thunderbolt

I've got a 2014 Mac mini running OSX 10.11.6 connected to 2 screens; one via the native HDMI and one via a Thunderbolt to HDMI convertor. It has been running fine for about 2 years. I turned it off ...
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iPhone XS video output for professional applications

I wish to use two iPhone XS as live video cameras connected to a SONY switcher via HDMI or SDI for a live stream. I have a couple questions: Can I output live video as a 'clean' signal image to the ...
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0answers
751 views

Why does HDMI on the 2018 Mac Mini have a “codec compressed” look?

I just purchased the 2018 Mac Mini, and also a LG 32UD99-W monitor that does 4k (3840x2160) at 60 Hz. When connecting HDMI cables from the Mac Mini HDMI out port to the monitor HDMI in port, the ...
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1answer
708 views

4K HDMI output from MacMini (late 2018) to LG C8 (OLED55C8PLA)

The LG TV just says "no signal". I'm connecting the Mac Mini to another TV just fine (1080p though). I'm using the same cable to connect a Windows 10 machine and it works over 4K just fine. Is there ...
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1answer
37 views

Using Macbook and Windows Desktop with wired mouse and keyboard

My Monitor has 1 spare HDMI port and the desktop it is connected to (through another HDMI) has wired mouse and keyboard attached to it. I am looking for a device or cable that would allow me to plug ...
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0answers
149 views

Audio hijack and loopback setup for spotify eq

I want to have the following setup on my MacOS machine: All audio should go to a Loopback device (call it "main"), configured as the main system audio device, so that I can use the native macOS ...
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1answer
46 views

Maximum number of audio channels over HDMI

Is MacOS Mojave capable of sending more than 8 audio channels over HDMI? For example, if I purchase a DisplayPort -> HDMI 2.0 adapter, will I be able to select more than 8 audio channels in the MIDI ...
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1answer
518 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 ...