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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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1answer
21 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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0answers
19 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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0answers
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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0answers
35 views

MacBook Air 2018 Thunderbolt/HDMI to external screen - low resolution, no sound, no options

So I just upgraded to a 2018 MBA from a 2013 MBP. I never had screen issues with the MBP, just plug in the HDMI cable and everything just works. The connection goes via a Denon receiver. Now on this ...
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0answers
31 views

How to connect macbook pro (13-inch, 2017, Two Thunderbolt 3 ports) usbc -> hdmi splitter -> 2 non-mirrored monitors?

Computer : macbook pro no touchbar 13-inch, 2017, Two Thunderbolt 3 ports Right now my macbook pro is connected to two external monitors (identical 274E softblue phillips < 4k)but both external ...
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1answer
19 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
15 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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25 views

MacBook performance degrading while using external screen through some USB-C Adapters

The Setup: MacBook pro 2018 13" without touchbar Asus 24" Screen GooBay 62113/Inateck sc01001 USB-C Adapter When the Screen is connected through the GooBay Adapter via HDMI, the performance of ...
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1answer
55 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
44 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
30 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 ...
0
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1answer
13 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
41 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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0answers
16 views

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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383 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 ...
1
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1answer
309 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 ...
3
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1answer
24 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
55 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 ...
0
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1answer
29 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 ...
2
votes
1answer
80 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 ...
2
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1answer
536 views

Mac mini 2018 HDMI surround sound output

I have a new Mac mini 2018. I want to get surround sound over HDMI. I have a receiver that is capable of transmitting 5.1 surround sound to my speakers, and HDMI video to my projector. I have ...
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1answer
126 views

Why can't I use this monitor full resolution at 60hz on my 2013 Mac Pro with OS X Mojave?

https://www.samsung.com/us/computing/monitors/uhd-and-wqhd/32-uj590-uhd-monitor-lu32j590uqnxza/#specs Says 60hz on the site, tried HDMI1, HDMI2, FreeSync, tried various HDMI cables, even bought an ...
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1answer
35 views

Dual external monitors: Blink on wake

I have two HP 24es monitors connected to my MacBook Pro. The input to the monitors are via HDMI. One connects directly to the MacBook Pro via a HDMI cable. The other connects via a HDMI to DVI, DVI to ...
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2answers
529 views

Screen goes black for a few seconds intermittently with Mac Mini 2018

I purchased a Mac Mini 2018 and connected it to my Dell 42" monitor via HDMI. I works fine except that the screen goes black intermittently and comes back after 3 or 5 seconds. The monitor and cable ...
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0answers
22 views

Attaching a HDMI screen to my Macbook interferes with Network access

I have a Macbook Pro and an USB-C Adapter where I can attach a HDMI screen. Without a screen attached: on the iPad remote I press the Play button turns green Once I press the Stop button the Play ...
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0answers
9 views

mbp late 2013 and hdmi odd behavior

I've been using a mac book pro late 2013 with an Asus proart display monitor connected by Philips HDMI cable with no adaptors for over a year now. Only recently I got a weird behavior that happens ...
0
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1answer
36 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 ...
1
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1answer
507 views

HDMI Audio doesn't work on AMD RX580 Mac Pro 5,1

I have a Mac Pro 5,1 2012 and just installed an AMD RX580 GPU. The sound doesn't go through the HDMI so I have to plug into the headphone outlet on the front of the computer (and can't use the ...
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0answers
366 views

How to connect iPhone to USB Type-C Portable Monitor?

I'm trying to figure out a way to connect iPhone 5 (lightning) to ASUS MB16AC portable monitor with USB type-C input as only connector that at the same time serves as power supply. Thought about some ...
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0answers
11 views

personal experience with Thunderbolt 3 dock and dual hdmi displays

i've placed a few of these, with mixed results, with cable-matters, startech, belkin, caldigit. but i have a couple HP displays which are just messing up pretty regularly with all these docks (or i ...
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0answers
400 views

Macbook Pro 2018 blurry output on external HP Z23N display

I'm on a MacBook Pro (15-inch, 2018) with Mojave (10.14). I'm trying to connect my MacBook to an external monitor (HP Z23N) through HDMI + Apple's usb-c adapter A1621 EMC 2877. The connection works ...
0
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1answer
44 views

Can I use MST on one mDP and 4k on the other?

I have a mid-2015 MacBook Pro 15" retina (A1398), and I'm trying to setup external displays as follows: 4k tv (TCL 43s405) @60 hz with mDP to HDMI adaptor 2x HP VH240A 1080p using mDP to 2xHDMI MST ...
1
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1answer
770 views

Closed MacBook Pro keeps turning external display on/off [duplicate]

I hooked up my old 2012 retina MacBook Pro to an external 4k monitor via HDMI. It works fine while the lid is open, but as soon as I close it, various issues occur. Monitor won't work or receive ...
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0answers
240 views

macOS — Is there a way to force HDMI-connection “restart”?

I'm using a MacBook Pro (late 2016) with an USB-C-to-HDMI cable made by AUKEY to connect to a projector (BenQ, Casio, Epson). There are days, everything works just fine, and there are days (like ...
3
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0answers
41 views

Mac splitscreen (not dual display)

I have a Macbook Pro 2012, and I want to split the display in two. I don't want to set up a dual display though. I want a cloned desktop on the same screen, so that it's the same image on both sides. ...
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0answers
12 views

How to connect two USB-C hdmi displays and an external drive to iMac with only two USB-C ports?

I have this 21.5 iMac but I need more displays in order to build a better workspace, so I bought a couple of USB-C AV adapters to connect the HDMi displays, but now Im using an external SSD (with usb-...
4
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1answer
306 views

Do all Macbooks have a Thunderbolt port?

I'm helping out with organizing a local conference, and I want all the speakers to be able to plug in their computers. While most laptops have an HDMI port, it's notably absent from a lot of Macbook ...
3
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2answers
1k views

2018 MacBook Pro + Dell U2718Q, single cable for display and USB data

Can I connect a 2018 MacBook Pro to a Dell UltraSharp 27 4K Monitor (U2718Q) with a single cable that carries both the display data and the data for the USB ports of the display? I tried a USB-C to ...
1
vote
1answer
128 views

Dell P2314H Monitor Cannot Connect to Macbook Pro

I've got a late 2013 model 13 inch Macbook Pro with Retina Display, and a new Dell P2314H monitor. I keep getting a message on the monitor saying its going to sleep. I've tried the following: ...
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2answers
1k views

MacBook [Pro] - 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 ...
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0answers
59 views

MBP 13" 2017 nTB external display issues when used with 2 DELL external displays

I have a MBP 13" nTB 2017 which i am intending to use with 2 DELL monitors (U2414H and U2417H) as extended desktops. However, i am facing some weird issue with the display issues shown in this video. ...
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0answers
55 views

MacBook Pro connected to WQHD external display through HDMI results in snowing

I have a MacBook Pro (Retina, 13-inch, Early 2015) with Intel Iris Graphics 6100 1536 MB running macOS High Sierra 10.13.6, and a Samsung S32D850T display. I connected them using the High Speed HDMI ...
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1answer
268 views

Running two external 4k displays over thunderbolt to HDMI MacBook Pro (Retina, 15-inch, Late 2013)

I have a MacBook Pro (Retina, 15-inch, Late 2013). Can I use two 3840 x 2160 external monitors over Thunderbolt 2 to HDMI connections if the laptop is in closed-display mode? I would be perfectly ...
0
votes
1answer
45 views

Trick Macbook to not recognize HDMI connection with external monitor but still mirror the screen to it

I am not even sure if my question is achievable or completely dumb. I connect my macbook air (macos High Sierra) to an external display via HDMI. As you know whenever you plug the cable in the laptop ...
1
vote
1answer
225 views

Connecting 2 HDMI monitors with 2 adapters on both side of USB-C port on 2018 MacBook Pro

I am thinking of buying 2 of this adapter for my Macbook Pro 2018? By plugging the adapter from both side of the USB-C ports, can i connect it to 2 external HDMI monitors?
0
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1answer
260 views

Secondary display turns off when I close the flap of my MacBook pro running on High Sierra

I wanted to play some retro games, I connected a ps3 controller so that i could play on a big screen. As soon as I close my MacBook pro's flap, monitor also mirrors it. I saw on youtube that a person ...
3
votes
2answers
1k views

MacBook Pro (2018) stopped detecting external monitor

My new MacBook Pro suddenly stopped recognizing external monitor (Dell U2515H) after 2 days of normal usage. Yesterday, after I was done with my work, I closed the lid as usual and today, I opened ...
1
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2answers
96 views

Is there an adapter / Dock / hub with 2 display outputs?

Looking around I can only seem to find an adapter / dock that only has 1 hdmi output with usb,ethernet, etc. Are there any adapters / Docks that have 2 display outputs? So then I can plug it into the ...
3
votes
1answer
4k views

Connect external display to Macbook Pro 2018: HDMI or DisplayPort?

What is the best way to connect external display (3840 x 2160, 27") to MBPro 13" 2018? It only has 4 USB-C ports, so we have to use adapters. Which is better, USB-C - HDMI or USB-C - DisplayPort? I ...
0
votes
0answers
36 views

MacVideo issues on external displays connected to Macbook Pro

For the past 2 years I've struggled with connecting my Early 2015 Macbook Pro to various displays around the house. In all honesty I should have reported the issue sooner, but I could use thunderbolt ...