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

learn more… | top users | synonyms

5
votes
1answer
3k views

rMBP kernel_task spikes when connecting more than one external monitor [duplicate]

When connecting a second external monitor kernel_task spikes to 600%+. This makes the computer unusable. Before Yosemite, this worked fine with 3 monitors. Here are the specifics: When I connect ...
0
votes
2answers
4k views

Mac mini (Late 2014) and 4K TVs

Based on Apple's documentation, my Mac mini (Late 2014, mid-range model with Intel Iris) should be able to support 4K video through HDMI. I've plugged in my Seiki 39" 4K TV (SE39UY04), but when the ...
0
votes
3answers
528 views

Are HDMI to VGA converters/adapters compatible with Mac?

Recently I purchased an HDMI to VGA adapter that actually converts the digital signal to an analog VGA signal to connect a computer to an external monitor. It works perfectly with a Windows PC that I ...
1
vote
1answer
2k views

Is there a difference between HDMI or Thunderbolt for monitor?

This is my configuration: Samsung S22A300B monitor (with VGA and DVI input) Computer A 2,6GHz Mac Mini from end of 2014 HDMI to DVI cable Thunderbolt to VGA cable Computer B Mac Book (yes, old) ...
0
votes
1answer
439 views

AppleTV interrupting while playing movie

My new black Apple TV (3rd generation) is plugged into my flatscreen by HDMI. All worked fine. A few days ago there were sudden "interruptions" while watching a show from netflix: no video, no ...
0
votes
0answers
668 views

Can't connect MacBook Air to LED TV anymore

I'm not sure if it was that recent security update, or the fact I've bought a new television, but it seems my Macbook Air no longer wants to play with the television at all. It's a little old, Late ...
1
vote
2answers
409 views

Best practice to connect two monitors with my Macbook Pro

currently i am asking which is the best practice to connect two HDMI monitors on my Macbook Pro. I have on HDMI slot and one Display Port. It is possible to chain the monitors via one display port or ...
1
vote
0answers
8 views

using iMac (2014) as Display for pc source [duplicate]

I have got iMac (2014 model), which I want to use as external display for my windows laptop. Is is possible? if yes, how? I have got a male-to-male mini-display to hdmi connector. But when I connect ...
0
votes
2answers
2k views

Can I use HDMI for audio only without video?

When I connect an HDMI display to my computer, it uses it as a display. I can't figure out how to use the HDMI cable for audio only and only use my laptop monitor. Is this possible?
1
vote
6answers
12k views

Connect 2 external Monitors with Belkin's Thunderbolt 2 Express Dock HD

I need a little help here, I have attached my MacBook Air Mid 2013, to an Belkin Thunderbolt 2 Express Dock HD. On the product page it says that one can connect two monitors. The only condition is ...
2
votes
1answer
5k views

Thunderbolt to HDMI (Not DisplayPort to HDMI)

My first question is do Thunderbolt to HDMI adapters exist? The reason I'm specifying Thunderbolt and not DisplayPort is because I have a Belkin Thunderbolt2 Dock. If I use a MDP>HDMI adapter and the ...
2
votes
1answer
407 views

External display occasionally shows just noise

When I'm at work I have my Macbook Air mid-2013 hooked up to a Samsung SyncMaster 2443 display via a ThunderBolt-to-HDMI adapter and then to a HDMI-to-DVI adapter. Almost every second time I switch ...
0
votes
1answer
1k views

Can I use dual 4k Dell P2815Q monitors on the Retina MacBook Pro (late 2013) with Yosemite at full resolution?

Will this monitor plug-and-play with Yosemite on this MacBook model without having to install Xcode and mess around with creating custom settings? Can I have two of these plugged into this MacBook ...
3
votes
5answers
17k views

Desktop icons have disappeared after using HDMI cable (Yosemite)

I had a strange issue recently where I had to reset PRAM after using an HDMI cable with my MBP (it had a blank screen on boot). I feel like this is again related to the HDMI cable. After using it, ...
0
votes
1answer
2k views

Intel HD 3000, HDMI and 2560x1080

I recently purchased an ultra wide monitor, with a native resolution of 2560x1080. This is great but it's only working with Windows ! Apple is limiting HDMI resolution to be no more than 1920x1080, ...
0
votes
1answer
250 views

How to connect 24" Apple Display to HDMI output of Mac Mini 2011?

Trying to have two monitors connected to Mac Mini mid-2011. It has one Mini DisplayPort and one HDMI outputs. I have 27" monitor connected to Mini Display port of the Mac Mini mid-2011. I was going ...
1
vote
0answers
74 views

Dual monitor support from the HDMI port on a 2012 Mac Mini

Will the HDMI port on a late 2012 Mac Mini support dual monitors (landscape) when run to an HDMI matrix distributor for connection?
0
votes
1answer
5k views

HDMI to VGA converter with Mac mini

I have bought a Mac mini today. My monitor is only VGA. After connecting HDMI to VGA converter my monitor is not getting any signal. How can I fix it? Please help me. I am so frustrated.
0
votes
1answer
3k views

Macbook Pro detects the screen, but external screen stays black (mini dp to hdmi)

I am trying to connect my MacBook Pro (OSX 10.9.3, 2.4 GHz Intel Core i5, 8GB DDR3) to Panasonic Viera TH55AS670D LED TV through Mini DP to HDMI connector. When I connect the wire my laptop screen ...
0
votes
2answers
647 views

wifi and hdmi problems on OS X yosemite (macbook pro 15-inch retina, late 2013)

Just wondering if anyone has been having this issue and found a workaround: My wifi works consistently both on Ubuntu and Android. Sometimes it also works on OS X, other times it does not - not even ...
0
votes
0answers
775 views

My MacBook Pro recently stopped responding to my hdmi adapter and cable

One day my Mac just stopped working when I connected it to my TV using an adapter and HDMI cable. Every time I plug in the HDMI and turn the TV to those settings both my TV and Mac screen go black. I ...
0
votes
1answer
716 views

MacBook Pro unusable when HDMI output is connected

My new MacBook Pro Retina 13″ (OS X 10.10) gets completely unusable when I attach the HDMI cable to the HDMI port. I have noticed that there are few processes that will start to consume crazy memory. ...
0
votes
0answers
126 views

How do I connect sound to my tv from Macbook 13' from 2009

I have a WiresMEDIA HDMI. Perfect picture on TV, but there's no sound. Also, my TV doesn't show in System Preferences -> Sound.
3
votes
0answers
1k views

External monitor displaying only noise after Yosemite upgrade

After upgrading to Yosemite, I see just noise on the external monitor, using a MDP to HDMI converter and an HDMI to DVI cable. It worked very well on Mavericks. I have no display now after updating, ...
0
votes
1answer
95 views

Multitasking on iPhone 5s while HDMI displays something else?

How can I keep HDMI playing movies while using other apps on my handset? I initially thought that the adapter merely mirrored pixel-for-pixel, but during movie playback it is possible to reveal the ...
1
vote
2answers
6k views

Driving a 4K display at 60Hz with rMBP

I've been Googling so much my eyes hurt. I have a 2014 rMBP. I want to use it with a 4K display or UHD TV at 60Hz that's at least 30" big. From my research, this means either using something with a ...
2
votes
4answers
3k views

Keep MacBook Pro awake in a clamshell mode + HDMI switcher setup

I'm running a setup with the latest Retina MacBook Pro, a Windows desktop and a single external monitor. Both machines are outputting display to a HDMI switcher, which connects to the monitor. I can ...
1
vote
0answers
2k 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 computer (one Thunderbolt, one HDMI) it will configure and work properly for a time. After 1-2 hours, ...
1
vote
1answer
225 views

Flickering external monitor w/ MBP retina 13"

I use the latest 13" MBP retina and I wanted to use an external display (LG IPS231) through hdmi but the LG doesn't have an HDMI port. So, I plugged the HDMI cable into my laptop to an HDMI to DVI ...
0
votes
1answer
2k views

Mac Mini with Dell UltraSharp U2713H - Not Sharp

I have bought myself a 2012 Mac mini and have it hooked up to my Dell Ultrasharp U2713H via HDMI. Everything works, but the text and everything else looks fuzzy and not sharp. Plus from what I can ...
4
votes
1answer
204 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 ...
1
vote
4answers
6k views

Can MacBook Pro with Retina display (13", Late 2012) output above 1080p to 4k tv?

I have a late 2012, 13-inch MacBook Pro with Retina display. Apparently it has Intel HD Graphics 4000. I just bought a Seiki 50" 4k TV and would like to connect it to my laptop with as high a ...
3
votes
3answers
4k views

2013 Macbook Air not showing 1440p Option on External Display

I have a mid 2013 Macbook Air with the Intel HD 5000 graphics chip. I recently purchased a 27" Acer K272HULbmiidp 1440p (2560x1440) monitor that just arrived today. I connected it via a mini ...
1
vote
2answers
383 views

OS X Video Driver corruption

I have a mid-2010 Macbook Pro with 10.9.4. I've been using it with a Seiki 39" 4K TV as a monitor for about a month now with no problems. (This is using an UltraAV MDP to HDMI Active Adapter cable.) ...
1
vote
1answer
6k views

Macbook pro latest retina: Output to monitor with VGA

I bought a new latest Mac book pro Retina. I see in my mac book, there are two ports: one for thunderbolt and one for HDMI (or HDMI, I don't know). I want to output to monitor with VGA display, so I ...
0
votes
0answers
324 views

Mac Mini needs HDMI unplug-replug after it's been asleep

I have a Mac Mini hooked up to my TV in my living room, connected via my audio received, and via HDMI. If I leave the Mac until it goes to sleep, the TV screen goes blue (as expected), and the Mini ...
2
votes
0answers
423 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 ...
0
votes
1answer
147 views

Macbook retina 15 3 external screens

I've read reviews about 3 external screens for late 2013 macbook pro 15 retina, and looks like there are different opinions about that. Some of videos I saw demonstrates the fact that it is possible ...
0
votes
1answer
447 views

macbook to monitor via windows laptop

I want to connect my macbook pro to my tv. I do not have a hdmi cable but I do have a dvi cable. I also have a usb to usb cable. Is it possible to connect my macbook pro to windows laptop then ...
1
vote
1answer
653 views

How can I connect two VGA monitors to a Mini using Thunderbolt and HDM adapters?

I am running one VGA display using Thunderbolt/VGA adapter from Apple and it works fine. Trying to connect second VGA display using HDMI/DVI adapter which comes with the mac using an additional ...
0
votes
1answer
4k 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
votes
4answers
7k views

Put Macbook Pro to sleep with HDMI connected to External Monitor?

I have conneceted my Macbook Pro (Late 2011) to my recently bought 27'' monitor with an HDMI cable. I have done all the settings so when I close the lid, I can still use my external monitor without ...
1
vote
4answers
44k views

Troubleshooting HDMI connection between MBP and Sony Bravia TV

I'm trying to connect my MacBook Pro (late 2011) running Mavericks to my Sony Bravia television like so: MBP thunderbolt port -> Mini DisplayPort cable -> HDMI cable -> TV HDMI 1 port. However, I'm ...
2
votes
1answer
1k views

Thunderbolt - HDMI - TV display switching problems

I have a Thunderbolt to HDMI to TV set up. On occasion it just starts switching the TV display on and off. I have not been able to determine the root cause. Looking in the Console just confirms the ...
2
votes
2answers
3k views

Monitor Connected to Mac Not Displaying

I have an TV which accepts a DVI and VGA input, and a retina macbook pro with Mini Display Port and HDMI. I needed to connect my mac to the monitor so I decided to go for an HDMI to DVI cable since it ...
8
votes
2answers
90k views

HDMI on MacBook Pro stopped working

The HDMI port on my MacBook Pro doesn't seem to be functioning normally. When I plug it into the TV, the screen temporarily turns black as if it is connecting to the TV, the mirror connection even ...
0
votes
1answer
199 views

Mac Mini - black pixels show up as purple

Has anyone encountered this problem: It's a mac mini. It's connected to a tv via a HDMI cable, both of which work fine with other computers. However, when connected to the HISENSE tv, at native ...
1
vote
0answers
290 views

Force 2560x1600 through HDMI on a Mid 2011 Mac Mini?

So I want to run dual 30" monitors on my mid 2011 mac mini. I have two U3014 monitors. While one works fine through mini display port, the other one is forced to run at 1080p via HDMI. Is there anyway ...
2
votes
0answers
67 views

Would using thunderbolt-to-hdmi help?

Late 2013 Macbook Pro 15.4" 2.6Ghz I connect HDMI and not always do the full spectrum of resolutions appear within the list of choices? System Preferences (app) -> Displays (preference icon) ...
1
vote
1answer
6k views

HDMI TV not showing as audio output in System Preferences

I have linked a cable from my MacBook Air to my TV via HDMI but cannot get volume on the TV. I have gone into preferences-sound but their is no facility to change 'internal speakers'. How can I do ...