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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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1 answer
185 views

HDMI in to MacBook Pro via Thunderbolt?

Got an old DSLR that output HDMI. Got a MBP M1. Got a USBC hub with HDMI port. Can I output from the DSLR into the hub and and transfer it and capture inside the MBP via USB-C port?
3 votes
1 answer
432 views

Using cables, how do I mirror my macbook's screen onto an iPhone screen?

It's nice that I can mirror my iPhone onto my Macbook using a simple lighting to USB-whatever cable, then open Quicktime but what about the inverse of this? I want to simply record my mac's screen ...
1 vote
1 answer
5k views

Sleep broken on a late 2021 MacBook Pro M1 when connected to external hdmi monitor

Using macOS 12.2.1 on a MacBook Pro M1 while connected to an external monitor breaks sleep mode. On Linux / Windows I expect the sleep mode to power off both my laptop screen and my external monitor ...
1 vote
2 answers
1k views

iPhone to monitor connectors with no noticeable latency

I have a VP2768A monitor (provided by my employer), and I bought a lightning to HDMI cable yesterday because I wanted to project my iPhone 12 Pro to a larger monitor for certain activities (e.g. ...
45 votes
8 answers
157k views

How to enable sound on MacBook when connected to second monitor via HDMI?

My MacBook Pro will not play sound when I connect a second monitor via HDMI. When I use the volume buttons, I see this icon: How do I resolve this?
1 vote
1 answer
63 views

Connect a DVD player to an iMac

I have a DVD player that I want to connect to an iMac M3. This is not the standard external-drive DVD player, but one that you'd normally hook up to a TV or similar; more a set-top box style. It's a ...
2 votes
2 answers
2k views

MacBook Pro 11,3 with dual Dell P2715Q 27" Monitors

I have two Dell P2715Q 27" external monitors I want to connect to my 15" MacBook Pro 11,3 with OSX 10.10.2 ordered around September 2014. I've tried connecting it as follows: note: tb = thunderbolt, ...
1 vote
1 answer
1k views

MacBook Pro - issues connecting to external monitor(both DisplayPort and HDMI)

I have an Apple Macbook Pro 16 Inch (Touchbar) 2019 w/ AMD Radeon Pro 5300M. I'm running into issues connecting it to this monitor, PX329. If I use DisplayPort(this monitor supports up to version 1.2) ...
0 votes
0 answers
23 views

Can you get 1440p on external monitor via Mini DisplayPort to HDMI converter on MacBook Air (mid 2012)?

Is it possible to get 1440p over an adapter (Mini DisplayPort to HDMI) on an external display on MacBook Air (2012)? The adapter supports 4k, and the HDMI cable does too. Still, I don't get the ...
-2 votes
1 answer
378 views

Why doesn't my iPhone 11 connect to my external monitor via HDMI?

I want to connect my iPhone 11 (iOS 17) to my external monitor via HDMI. I use a Sharllen RJ45 Ethernet Adapter 4 in 1 Lightning to HDMI Adapter (picture), as well as a standard HDMI cable, which is ...
1 vote
1 answer
22 views

MacBook Pro 13 2017: Built-in display flickering, no problem when connecting to an external display

Same problem as this problem "My MacBook Pro's built-in display started flickering (screen goes black) a few weeks ago. Most of the time the flickering stops by itself randomly after a couple of ...
0 votes
1 answer
8 views

Dark colours strobing on external display plugged in via HDMI with MacBook

I've noticed that my screen was slightly strobing when my MacBook is plugged in via HDMI to my LG TV. The issue does not repro when there's lighter colours, and it also doesn't repro on the Mac's ...
3 votes
1 answer
440 views

MacBook Pro M3 detects monitor but got black screen

I am trying to connect my home screen via HDMI using a dock. It shows the monitor in the Displays tab in settings but I keep having a black screen on the external monitor. I also have a Dell laptop ...
14 votes
5 answers
10k views

Macbook Pro 2019 overheating with external monitor

Problem My Macbook overheats insanely. After investigating a bit, I found out that the correlation is extremely strong with having it plugged in to an external monitor with the Macbook Pro monitor ...
0 votes
0 answers
98 views

How to achieve 6k @ 60Hz on Mac Pro 5,1 with RX 6600?

I have a Mac Pro 5,1 running macOS Monterey via Open Core Legacy Patcher (OCLP) and I just purchased a flashed RX 6600 video card from MacVidCards.eu. According to the specs on the MacVidCards website,...
2 votes
1 answer
1k views

Thunderbolt monitor running at 30Hz when second monitor connected

I have a MacBook Pro (15 inch, 2018, Radeon Pro 560X) to which I plug 2 external monitors: a LG 32UL950 4K over thunderbolt & an old ASUS full HD over HDMI. The problem is when the ASUS is ...
0 votes
0 answers
56 views

Samsung U28R552UQR via HDMI + USB‑C Digital AV Multiport Adapter – bad quality

I have two Samsung U28R552UQR displays. One is connected via DisplayPort–to–USB-C, the other one via HDMI + Apple's own USB‑C Digital AV Multiport Adapter. The one connected via HDMI looks ...
1 vote
0 answers
23 views

How to diagnose cause of sound stutters on mac pro

I have ancient Mac Pro, a 2009 heavily upgrade: 2012 mother board, 12 core Xeon at 3.33 Ghz 96 GB ram. It has an add on card with 5 USB ports, as several of the original ports no longer work. (A way ...
9 votes
2 answers
8k 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 ...
0 votes
1 answer
1k views

MiniDisplay port to HDMI to optical 5.1 audio only has 2-channel output

I have a Macbook Air 2017. My goal is to have an optical output capable of 5.1 audio for my home theatre. My series of connections are, mini display port to hdmi and the hdmi connected towards hdmi to ...
1 vote
1 answer
4k views

How to connect two monitors to M1 Mac Mini using a Thunderbolt Dock?

I'm trying to find a solution to switching external monitors between an M1 Mac mini and an Intel MacBook Pro by replugging a single Thunderbolt cable. Equipment Two Dell U2720Q/U2720QM monitors (...
1 vote
1 answer
78 views

Can't arrange 3 displays with 2 on top and one below

I have a 2013 MacBook pro with Catalina (10.15.7) and have added 2 external displays, one on hdmi, one with a thunderbolt VGA adapter. All 3 (the builtin LCD and 2 external) are used and not mirrored. ...
1 vote
1 answer
114 views

How can I use the Built-in display as the primary monitor, and a projector (via HDMI) as secondary?

I have a Mac mini which has no display which I connect to it by sharing the screen to my laptop. The Mac mini runs apps which controls my live show's backing tracks, lights and video. The video ...
3 votes
1 answer
254 views

Can MacBook Air 2017 handle 4k video playback

I bought a 4k monitor and now I am connecting the monitor to my MacBook Air 2017 with the mini-DisplayPort to HDMI cable. This cable supports 1440p on 59.98 FPS, or 4K on 30 FPS. When it is on 1440p, ...
0 votes
0 answers
296 views

MacBook Pro 13 2017: Built-in display flickering, stops when connecting to an external display

My MacBook Pro's built-in display started flickering (screen goes black) a few weeks ago. Most of the time the flickering stops by itself randomly after a couple of minutes. The thing is, when I ...
0 votes
0 answers
9 views

Desktops move to wrong displays upon wake

I'm running Sonoma with 2 external displays, one via HDMI, and one via USB-C. The USB-C display has 3 virtual desktops, and the HDMI one a single virtual desktop. The vast majority of the time (every ...
0 votes
4 answers
663 views

Dock Dual Thunderbolt 2 Laptops with dual HDMI out / dual screen sharing?

I have a 2013 Macbook Pro and a 2015 Macbook Air. The MBP has a busted screen but works fine otherwise, it has two Thunderbolt 2 ports. The Air is fully functional, it has one Thunderbolt 2 port. I ...
3 votes
1 answer
4k views

HDMI to DisplayPort adapter for a M1 MacBookPro

At my new job, I received an Apple MacBookPro to work on. Some specs: 16-inch 2021, Apple M1 Pro CPU, one HDMI port. This Mac has USB-C ports and does not have any legacy mini DisplayPorts. Can you ...
11 votes
4 answers
81k views

How to audio out to iPad Pro when connected to HDMI?

I have 3rd generation iPad pro. I use USB-C to HDMI adapter to connect my iPad to an external monitor with speaker. The speaker on the monitor is so bad..I would love to use iPad speaker instead. I'...
38 votes
14 answers
127k views

External monitor flicker / signal loss

I have a Samsung 28" U28E590 4K Display and a 13" MacBook Pro with Touch Bar (Intel Iris 550 1536 MB Graphics). I have a dongle for HDMI output. The problem is that the external monitor flickers, ...
0 votes
1 answer
2k views

External display doesn't work, keeps disappearing and reappearing in settings

I am trying to connect my MacBook Pro to an external display (HP E24i G4) via HDMI. The display doesn't work. When I go to Display Settings to check on it, I see the following: Then, in a split ...
0 votes
0 answers
37 views

Is there any way to check chroma sampling applied (MacBook Air M2)?

My monitor does not show anything but the resolution information. Is there any way to check if my computer runs 4:4:4 instead of any other mode. My laptop is connected to my screen Type C to HDMI 2.1. ...
1 vote
0 answers
439 views

How to enable HiDPI resolutions in macOS Mojave [duplicate]

I just picked up a LG C2 4K monitor and connecting it via HDMI to my 2009 Mac Pro via RX580 video card. I can get 120HZ and 4k resolutions, and there is a 1080P resolution option, but I cannot find ...
0 votes
1 answer
980 views

External display burn-in with MBP16, 2021, M1Pro

I have 2 LG 27GP950-B (4K) external displays, which I connect to MacBook via USB-C->HDMI and HDMI->HDMI cables. Prior to using these with the MacBook, I was using these with a desktop PC for a ...
0 votes
1 answer
42 views

Mirroring from my iPhone 7+ to Aucary projector wirelessly to wall

I want to mirror from my iPhone 7+ to an Aucary projector for displaying on a wall. What adapters or cables do I need? I haven’t been able to connect wirelessly (my iPhone shows no wireless connection)...
1 vote
1 answer
112 views

Acer monitor inbuilt speaker option not working on MacBook Pro

I am using a MacBook Pro with an Acer monitor, but I am not getting audio output. I also tried selecting a speaker from the Menu Bar (attached screenshot) However, when I saw on the Acer page it ...
0 votes
0 answers
56 views

Sudden problems with External Display on MacBook Pro. DisplayPort shows distortion (lines), HDMI turns on and off every few seconds

I have been using this combination of laptop (2021 MacBook Pro M1) and External Display (Mi Curved Gaming Monitor) for several months without issue. Yesterday while gaming suddenly the screen started ...
0 votes
0 answers
555 views

High CPU usage when connecting to external display

My MacBook Pro 13 inch, M1, 2020 becomes very slow when connected to an external display. Just updated to the newest MacOS Sonoma 14.0. Doesn't help. All the programs' CPU usage seems to go up. The ...
0 votes
0 answers
754 views

Thinkpad Thunderbolt 3 dock Gen 2 not working correctly

I have an M2 MacBook Pro with an issue regarding a docking station. I'll write some specs first so you know what I'm working with. Laptop: MacBook Pro M2, 16 inch macOS Sonoma 14.0 Dock: Lenovo ...
4 votes
2 answers
3k views

Connection Problem with HP Pavilion Monitor and 2015 MacBook Pro Retina

I bought the HP Pavilion 22cwa 21.5-inch IPS LED Backlit Monitor off of Amazon to use as a second monitor with my MacBook. However, when using an HDMI cable, there is a connection problem and both the ...
2 votes
1 answer
380 views

Recommendation for a Mac Compatible Display Port switch for a 5K Monitor

I have the following hardware: 2021 MacBook Pro (16 Inch) Apple M1 Max - Running macOS Monterey LG Monitor @ 5120x2880 Samsung Monitor @ 5120x1440 Answin USB C to DisplayPort, 6FT 8K USB-C ...
0 votes
0 answers
87 views

2020 Macbook Pro won't connect to HDMI on Promethean Board

I have a Macbook Pro (2020) running Big Sur 11.7.4 I have tried two USB - C to HDMI adapters to run the display to a Promethean Board in a classroom One was an apple-branded multifunction adapter (has ...
0 votes
0 answers
62 views

HDMI KVM which is working with a Mac Mini M2 and 4k monitors - also sleep and reboot

After I have used a Aten CS1924 KVM for DP for years between my PC and MBP without any issue, the introduction of a Mac Mini M2 renders my setup unusable. On reboot, the Mini doesn't detect the ...
1 vote
0 answers
1k views

MBP in Clamshell mode: display doesn't come on when waking up

I have an M1 Macbook Pro (2020) running Ventura. Most of the time I use it in clamshell mode. I can easily wake it from sleep the using the external wireless keyboard (I hear the fans come on, the ...
0 votes
0 answers
71 views

Macbook Pro 2018 Ventura Not Detecting Additional Monitors From KVM Switch

I'm on MacBook Pro 2018 Ventura 13.5. I have three monitors connected to a KVM switch, two through HDMI, and one through DP. The middle monitor is connected through DP, the monitors on the left and ...
0 votes
0 answers
28 views

How to display a USB webcam / video dongle on a iMac with as little latency as possible [duplicate]

I have been asked to assist a friend who has a 2021 iMac without HDMI input to display an incoming video feed from a work laptop's HDMI output. I have a generic HDMI->USB adaptor that (on Windows &...
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 ...
0 votes
1 answer
188 views

How can I fix my Mac when When Connects to External Monitor (TV) gets blurred Text

I want to use a SANSUI TV as a display for my Mac. I have connected the TV with HDMI but the problem is it gets blurred text, it's not smooth at all. I have many resolutions with ALT on scaled but no ...
12 votes
9 answers
40k 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 ...
1 vote
3 answers
4k views

Can I get my 2020, M1 Macbook Air to drive two different external displays?

Is there a way to get a 2020 MacBook Air (M1) to drive two external displays, specifically where one of the displays does not have USB-C/Thunderbolt? The Macbook Air has two USB-C ports (both "...

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