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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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2
votes
1answer
17 views

How many monitors iMac 21.5 4K can handle?

Well, Im a programmer and I want bunch of monitors. I have a 21.5 Inch 5K iMac, from 2017 Just bought a DUAL HDMI Adapter from StarTech.com My intention is to have 3 extra displays because the Mac ...
4
votes
2answers
72 views

Prevent external speakers in monitors connected via HDMI being used

I sometimes run into an issue where I connect an external monitor via HDMI, and my Macbook Pro's sound is now routed to the monitor instead of my headphones or the internal speakers. Worse, sometimes ...
21
votes
2answers
13k 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 ...
1
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0answers
806 views

Connecting an early 2015 MacBook Pro Retina to an LG 27UK850-W

Wondering how to connect my early 2015 13 inch MacBook Pro with the Retina Display to my new LG 27UK850-W 4K monitor. I have read several methods but want to know the best one, especially whether it's ...
3
votes
2answers
2k views

Dual displays detected as singular display via usb c dock issue (MBP 2017, Dell)

Hardware 1 MacBook Pro (13-inch, Late 2016, Four Thunderbolt 3 Ports) 2 Dell U2517D documentation 1 Hubee usb-c dock documentation Expectation Successfully connect and extend both of my Dell "...
3
votes
2answers
970 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 ...
1
vote
0answers
44 views

Setting an unsupported custom resolution in MacOS

Is there a way via command line or GUI to set a custom unsupported screen resolution. Specifically the problem I am trying to resolve is getting 5K support for a Dell U4919DW. If not possible, how do ...
1
vote
1answer
29 views

Is it possible to power a 4K display at 60 Hz with a DisplayPort/HDMI adapter connected to a USB-C hub?

I have a LG display which supports 4K at 60 Hz. I wanted to buy an adapter for my Macbook Air(2018) to use it with my notebook. I am confused about one thing though. I have read that USB-C to USB-C ...
1
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0answers
32 views

Macbook Pro 2018 - HDMI Arc Support?

I have a Macbook Pro 15" (2018) model. I just purchased a Sonos amp, and so I'm currently enjoying the quality that this provides. The issue is however AirPlay can be a bit flaky at times with the ...
3
votes
1answer
115 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'...
1
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0answers
23 views

Connecting external monitor at 1440p to mid-2012 MBP 13"

Recently I bought Dell S2719DM monitor, which maximum resolution is 2560x1440. I'd like to use it with my mid-2012 13 inch MacBook Pro, so I got Mini DisplayPort to HDMI adapter - it uses HDMI 1.4 and ...
2
votes
3answers
170 views

2018 Macbook Air hot/slow when using UHD monitor

So I upgraded from a 1080p 27 inch monitor to the following Samsung 32" UHD 4K Monitor Model: LU32J590UQNXZA I've tried connecting over HDMI using a USB C dock, and over Displayport with a ...
0
votes
2answers
33 views

Beam projector works in bootcamp, but do not work in macos

The HDMI beam projector in my classroom works fine when I boot with Bootcamp (win 10), but it shows "no signal" when I boot with macOS (10.14.6) I have changed all the available screen resolutions, ...
2
votes
2answers
33 views

Windows Laptop as Secondary Monitor for Macbook Air (Preferably Wired)

I have a Macbook Air and an HP Stream 13 and I am wondering if it is possible to use the HP Stream 13 as a secondary monitor (a more mobile solution to a secondary screen). I currently own a Mini DP ...
5
votes
1answer
6k views

HDMI Display failure on Mac Mini (late 2012)

I have a late 2012 Mac Mini running OS X Mavericks (10.9.5). When I hook up two displays to the Mini (one Thunderbolt, one HDMI) it will configure and work properly for a time. After 1-2 hours, or ...
2
votes
1answer
22 views

Can I connect 3 display to a mid 2012 MBP retina?

I have a mid 2012 Retina display MBP, currently connected to 2 external displays. Specs: And these are the 2 current monitors, both FULL HD: One of them is connected directly with native HDMI port ...
0
votes
0answers
19 views

Any way to get 5K with 2014 MacBook Pro?

I got a Planar IX2790 5K monitor connected to my Mid 2014 MacBook Pro with Thunderbolt (Mini DP) to DisplayPort cable. Only getting 4K. Too late, I noticed the fine print: Mac: DP Support up to ...
3
votes
4answers
4k 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 ...
0
votes
0answers
26 views

Bootcamp with no sound or BSOD

I have downloaded latest W10 from https://www.microsoft.com/en-us/software-download/windows10 I used MacOS app "Boot camp" in mac to create USB installer with automatically downloaded latest drivers. ...
0
votes
1answer
68 views

Unable to use external monitor's full resolution using Macbook Pro

I recently bought a new 2019 MacBook Pro. It working as expected. I use my HP 22Es for majority of my work. Very unfortunately, my MBP is unable to detect the 1920x1080 resolution of external display. ...
0
votes
1answer
39 views

2nd monitor is mirroring the first external monitor

For years I've been using a Dell U2515H monitor as external display for my Macbook Pro. Yesterday I purchased a second monitor (exactly the same) and connected it through HDMI to my Macbook Pro (2018) ...
1
vote
1answer
64 views

MacBook Pro screen broken and was using 2nd monitor fine until I started the process of turning FileVault on

I have a MacBook Pro 2015 with a broken screen (most of it is black and not visible). Before I had it set up where I would just turn it on, connect my HDMI cable to TV or Monitor and it would show ...
0
votes
1answer
501 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 ...
1
vote
1answer
98 views

monitor displays shows no picture in display settings and goes black randomly

This is my first question so please pardon my mistakes. I use a Mid 2017 MacBook Pro with a HP V270 Monitor. The monitor connects fine using a USB-C to HDMI cable but the issue I'm having currently is ...
2
votes
0answers
56 views

MacBook Pro can't get more than 2048 x 1152 on my QHD Dell monitor through Mini DisplayPort to HDMI adapter (4K capable)

Short story: My MacBook Pro (Retina 13" Late 2012) can't run 2560 x 1440 on new QHD monitor (Dell S2719DM - Only has HDMI ports) through a 4K Mini DisplayPort to HDMI adapter. Why and how to fix? ...
7
votes
4answers
5k views

External monitor stays black after “locking” (or sleeping)

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 ...
1
vote
3answers
182 views

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

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 ...
4
votes
4answers
9k 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
vote
2answers
92 views

USB-C dock with HDMI graphics on Late 2013 MacBook Pro

I have two MacBook Pros, a 2017 model with Thunderbolt 3 ports, and a late 2013 Retina with TB2 and USB3 ports. I use a HP USB-C Dock G4 docking station for the 2017 model. I have two 1080p HP ...
4
votes
1answer
1k 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 ...
8
votes
3answers
6k 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 ...
0
votes
0answers
24 views

Thunderbolt 1.0 with New Monitors [duplicate]

I have never connected my MacBook to external monitors. I know I can use the HDMI port, but I was wondering about the Thunderbolt 1.0 port (I have 2 ports). I am using a Mid 2012 15" retina MacBook ...
1
vote
0answers
31 views

Getting sound to split between computer and external monitor (TV hooked up with HDMI to thunderbolt) from iMac but NOT simulatneously

I connected my TV to the iMac last night. When I drag a program up to the TV the sound switches from my computer speakers to my TV speakers; I thought this was a great feature. However, when I wake up ...
1
vote
0answers
48 views

Dell Monitor S2817Q goes into flicker mode on MacBook Pro (Retina, 15-inch, Mid 2015) 10.14.5

I have been using dual monitors (HP and Dell) with no issues on my MacBook Pro running 10.14.5 for 6 months. Dell is connected to HDMI and HP is connected to Thunderbolt. After a few recent OS ...
3
votes
2answers
1k views

Can I output 1080p at 240hz from my 2017 MacBook Pro 13inch with Touch Bar

I just bought an Acer XB252Q gaming monitor that has 1080p 240hz. I was wondering if I can output 1080p at 240hz with my 2017 MacBook Pro 13" with Touch Bar using a display port cable? I ask because ...
1
vote
0answers
138 views

Retina MacBook Air: External Monitor lag issue

I have a new 2018 Retina MacBook Air, 1.6Ghz i5, 16GB memory, Intel UHD Graphics 617 1536 MB. I am connecting this to an external monitor, a Dell P2415Q, using an HDMI cable and a Targus DOCK412USZ ...
0
votes
1answer
800 views

How to reach full resolution potential with MacBook Pro 2012?

I have a MacBook Pro (13-inch, Mid 2012) running OS X El Capitan version 10.11.4. I am attempting to use an external display with my Dell U2715Q (has 4k capabilities). I purchased an AmazonBasics ...
2
votes
0answers
333 views

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 ...
2
votes
2answers
4k views

Possible to get 1440p from a 2012 Mac Mini via mini DP -> HDMI adapter?

I recently purchased a 2012 Mac Mini and am attempting to max out my dual monitor setup. Currently, I connect my Mac to a Dell S2417DG's HDMI 1.4 in via this passive mini DP to HDMI 1.4 cable. ...
0
votes
1answer
197 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 ...
6
votes
5answers
53k views

Dell WD15 Dock with 2017 MacBook Pro

I have a 2017 MacBook pro w/ touchbar and the Dell WD 15 dock (work issued it to me). The dock has thunderbolt, HDMI, and VGA on the back. A single USB-C cable comes off of the dock. The issue I have ...
0
votes
0answers
22 views

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 ...
0
votes
1answer
288 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 ...
1
vote
0answers
39 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 ...
1
vote
1answer
294 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 ...
4
votes
1answer
752 views

External monitor's (DELL U2415) refresh rate locked at 59.88 Hz (NTSC)?

I bought a DELL U2415 monitor and connected it via a MiniDP to DP cable that came with the monitor. Surprisingly the refresh rate of the monitor was locked at 59.88 Hz (NTSC), unlike a U2414H ...
1
vote
1answer
254 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 ...
1
vote
2answers
339 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 ...
1
vote
2answers
127 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 ...
2
votes
1answer
1k 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 ...