Questions tagged [hdmi]

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

87 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
0answers
485 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 ...
5
votes
0answers
793 views

2016 MBP External Monitor Black Screen USB-C to DisplayPort

I have a 2016 MBP running 10.12.6 with an external Dell 24" (P2415Q) monitor in my home office. At work I have a Dell 27" (U2717D) and a Dell 24" (U2415). At work the U27 is connected DisplayPort to ...
5
votes
0answers
767 views

Dell external monitor has blurry font

I have a Dell S2316H monitor which I connect to my MacBook Pro (early 2015) using the built in HDMI port. The fonts are looking very blurry on the external monitor. I own the MacBook for about a week....
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 ...
5
votes
1answer
436 views

Is there a way to mirror to HDMI display on FileVault login screen?

I have a MacBook Pro Retina & Mavericks, with FileVault 2 enabled. I also mirror to an HDMI display, but it doesn't show anything on FileVault 2 login. This is an issue, because I'd like to get a ...
4
votes
0answers
2k views

Serious usability issues with HDMI external displays connected to USB-C adapter on Macbook Pro 2016

The Apple USB-C HDMI adapter has a very non-intuitive behaviour that makes it difficult to work with. Tested with LG 24MP88 LED monitor and Macbook Pro 2016 with MacOS High Sierra Case 1: Display is ...
4
votes
0answers
692 views

Mac Mini without keyboard or mouse - no signal on monitor

I have decided to turn my old Mac Mini (2011) into home media center. To do that I simply connected it to TV using HDMI cable (directly via HDMI port) and installed Remote Mouse on it as well as ...
4
votes
0answers
853 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 "...
3
votes
0answers
49 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. ...
3
votes
0answers
543 views

How to tell which Alternate Mode a display is using on 2016 MacBook Pro

I have a 13" MacBook Pro 2016 (non-touchbar) which I've connected to a couple of HDMI displays. I know that Macs support both HDMI and DisplayPort over USB-C Alternate Modes, and I'd like to know ...
3
votes
1answer
5k views

Problem with Mac HDMI - Thunderbolt display to Sony (not a cable problem)

I have a 13-inch Macbook Pro with Mountain Lion installed. I bought an HDMI - Thunderbolt cable months ago in order to watch movies, TV shows and whatnot on my TV (Sony Bravia). The cable had been ...
2
votes
0answers
54 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? ...
2
votes
0answers
318 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
0answers
15 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 ...
2
votes
0answers
1k 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 ...
2
votes
0answers
451 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 ...
2
votes
0answers
54 views

Slow display switching and no audio output to external speakers via headphone port

I have Mac Mini 2010 which has a HDMI and Mini Display port with adapter to HDMI. It has macOS Sierra 10.12.6 clean installed on an internal SSD. Nothing else is attached except an external USB drive. ...
2
votes
0answers
119 views

All screens go blank when I plug in an external display on Macbook 15" Retina mid-2014

I have a Macbook Pro 15inch Retina mid-2014. I always use an external display when not on the move. When I plug in an external display, at home or at work, both the built-in display and the external ...
2
votes
0answers
670 views

Watch AppleTV and XBOX One on my LG UltraFine 5k / MacBook Pro?

I have searched high and low, but can't find a good solution. Any help is appreciated! I have a MacBook Pro 2016 w/TB. I have the LG UltraFine 5k monitor, which I absolutely love. The resolution, ...
2
votes
0answers
689 views

Getting 60hz on 4k display

I thought I did my research but I can't get my new Macbook to squeeze out 60hz to my monitor. Setup: Macbook Pro 2016 running High Sierra (15", Radeon Pro 450 2GB, 2.6 GHz i7, 16GB ram) Dell P2415Q ...
2
votes
0answers
378 views

HDMI passing sound but no picture from MacBook Pro

My HDMI is not working as usual. I can hear the correct sound, but no picture. I believe the last software update may have been the cause. I have attached a friend's MacBook Pro and the HDMI works ...
2
votes
0answers
652 views

Macbook Pro (15-inch, Mid 2010) - Mini Displayport to HDMI **Does not work**

MacBook Pro (15-inch, Mid 2010). I'm trying to put it on another monitor through an HDMI adapter. As I'm not able to display the image on the other monitor, the Macbook screen simply blinks when I ...
2
votes
0answers
292 views

HDMI macbook air 2011

I'm having issues with my macbook air 2011 HDMI connection. I am connecting through thunderbolt. Here is the problem; sometimes my mac connects to HDMI. Most of the time, it does not. Once it is ...
2
votes
0answers
1k views

Mac screen goes off and on after HDMI to VGA adapter is connected - no image

I've bought a HDMI to VGA adapter (no external power source) so I can use my mid-2015 Macbook Pro with the old projector I have in class. Thing is, as soon as I connect it to the HDMI port (even ...
2
votes
0answers
584 views

Why does my Apple TV 4 often turn my receiver off on startup?

I have an Apple TV connected via HDMI to a Pioneer VSX-S510 which in turn is connected to my Sony Bravia KDL-32W4000 TV. I have everything set to power on automatically, and I can control the ...
2
votes
0answers
838 views

Use an iPhone as cabled webcam / capture camera stream from hdmi out?

I am wondering if there is a way to use an iPhone as a usb webcam. I saw solutions for wifi and friends but none of them seems to work for a cabled connection. Alternatively, I know that it is ...
2
votes
0answers
895 views

How to avoid external display going off after I unplug a MacBook from the AC Power?

When I have my MacBook Pro 10.10 connected to the AC Power my external display connected through HDMI works fine. As soon I disconnect the MacBook from the AC Power and start running on battery, my ...
2
votes
0answers
4k views

HDMI & VGA issues with MacBook Pro Retina & Acer Monitor

I'm having a very strange issue. I inherited an Acer monitor from a friend that is full HD, 1080p. Good monitor overall. When connecting ONLY an HDMI cable from my Mac to the monitor, I get no signal. ...
2
votes
0answers
127 views

iMac and HDMI display - not turning off properly

I'm using iMac on my work and when i said to my boss that i need 2nd display for work he ordered it and it arrived. Philips Gioco 27" But that display has only VGA and HDMI ports, no DVI. So we bought ...
1
vote
0answers
36 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
0answers
30 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 ...
1
vote
0answers
22 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 ...
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
46 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 ...
1
vote
0answers
129 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 ...
1
vote
0answers
37 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
0answers
158 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 ...
1
vote
0answers
430 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?
1
vote
0answers
439 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 ...
1
vote
0answers
117 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 ...
1
vote
0answers
25 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 ...
1
vote
0answers
907 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
vote
0answers
264 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 ...
1
vote
0answers
81 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. ...
1
vote
0answers
189 views

Mac Mini with x3 Apple Displays/Monitors. Adapters, cables and configuration puzzle

Anybody successfully attached (or know how to attach) x2 Apple 30" Cinema displays (Male DVI) and x1 Apple 24" Display (Male Mini DisplayPort) to a Mac Mini 2012 (which has the following connections ...
1
vote
0answers
21 views

Can rMBR 2015 (or other) can run external display/TV without fan noise?

I have a 2015 rMBP and when I am connecting external display (in my case it is 720p TV with HDMI cable) the fans starting to blow and never go below certain (hearable) line. I have seen some ...
1
vote
0answers
794 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 ...
1
vote
0answers
3k views

External Monitor not detected on Macbook Air early 2015, with thunderbolt 2 + HDMI

I have always been wanting to connect my macbook air to an external monitor, so after researching the best types for macbooks, I figured connecting my macbook via HDMI to a monitor would work. ...
1
vote
0answers
55 views

OS starts lagging about every 5 seconds with HDMI to VGA

Since I updated from Sierra to High Sierra I have an issue when i connect a second monitor to my macbook pro 15 inch 2017 (USB-C to HDMI -> HDMI to VGA). Namely, the OS starts lagging about every 5 ...
1
vote
0answers
233 views

Apple TV triggers TV every 5 minutes

I have set my TV to turn on and/or switch to Apple TV when the ATV wakes up from sleep. Until tvOS 10 it worked as expected but since I upgraded to 11 the other day, the TV switches to the ATV input ...