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Questions tagged [displayport]

Questions that relate specifically to Macs and peripherals with DisplayPort hardware (not Thunderbolt).

8
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0answers
1k views

Supported USB-C Alternate Modes on MacBook Pro (15-inch, 2016)

I am curious exactly what USB Type-C alternate modes (and variations of those modes) are supported on the MacBook Pro (15-inch, 2016). I've done some searching on the internet, but I've been unable to ...
5
votes
0answers
1k views

External display not recognized after waking from sleep until restarted

I have a MacBook Pro (Retina, 13-inch, Early 2015, macOS High Sierra 10.13.6) which fails to detect an external display after is has woken up from sleep. Here's my situation: I have an external ...
5
votes
0answers
672 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 ...
4
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0answers
273 views

2560x1440 @ 60 Hz HiDpi on a MBPr 13" Late 2013

My setup: Late 2013 13" MacBook Pro Retina (MBPr) Dell P2715Q (4k) monitor Connect the MBPr with the monitor using a mDP-DP cable SwitchResX shows me the following resolutions: I tried the ...
4
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0answers
286 views

Multiple monitors get mixed up

I am on OSX Lion, with a MacBook Pro. I am using the DisplayPort for an external monitor and two USB Diamond BVU195 for two extra monitors. Each time when I turn my computer on, the two monitors get ...
3
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0answers
1k views

Why would updating to High Sierra 10.13.4 kill one external monitor but leave another identical one working?

I have a 21" Retina iMac (2017) with two ASUS PB258Q monitors, each connected to a USB-C port via a StarTech USB-C to DisplayPort cable. Since I updated to 10.13.4, only the left monitor works—even if ...
3
votes
0answers
425 views

Mac mini 2012 mini-DisplayPort flashes to black intermittently with High Sierra 10.13.2

I asked in the apple forum, but got no answer, so trying here... Mac mini 2012 mini-displayport flashes to black intermittently with High Sierra 10.13.2 I'm setting up a new-to-me Mac Mini 2012 with ...
3
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0answers
509 views

MacBook Pro 2017 doesn't connect Dell U2713HM via (Hama) USB-C to DisplayPort adapter but MacBook 2016 works

I am trying to connect MacBook Pro 2017 to Dell U2712HM monitor. I bought Hama USB-C to Display Port adapter but it does not work with MBP 2017. When I plugged it, it does not recognize it - nothing ...
3
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0answers
507 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 ...
2
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0answers
31 views

Display port not activating monitor for boot manager

I'm setting up an old mac mini (specs below) with a dual boot (Ubuntu) and I've run into an issue getting to the Apple boot manager or the EFI boot manager. Essentially the monitor does not activate ...
2
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0answers
129 views

HDMI sound keeps dropping out after last update - macOS 10.13.5

I have an external monitor connected to the MacBook Pro 2017 with touchbar, and everything was working fine until the last update, now every day I have to reboot the computer to get back the sound ...
2
votes
0answers
407 views

Headless Mac Mini can display 2560x1440 after being plugged into, then unplugged from an external monitor, but only goes up to 1920x1080 after restart

I am using a Late 2012 Mac Mini exclusively through Screen Sharing on my MacBook (Both on 10.13.4). The only way I could get the Mac Mini to full resolution was to: Close connection from my MacBook ...
2
votes
0answers
476 views

No signal detected after update to High Sierra

I have a 13” MacBook Air (mid 2013) with OSX Yosemite and bought a BenQ SW271. It was all working nicely in 1440p through DisplayPort cable. After update to High Sierra it shows no signal detected but ...
2
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0answers
85 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
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0answers
62 views

Secondary displays randomly swap content on reconnect

I use a 2015 15" MacBook Pro with two external displays in the following approximate physical configuration: +-----------+ | +------------------------+ | || |...
2
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0answers
35 views

VGA displayport sees monitor as a TV

I have a monitor (LG flatron W2353S 24 inches), a Macbook Pro (Late 2011) Model A1278, and a VGA displayport adapter. The issue is that when I connect my MacBook to my monitor it detects the monitor ...
2
votes
0answers
291 views

MBP 2013 - 4K at 50hz or 60hz

I am on a early 15" Macbook Pro Retina Display with dual Intel 4000 and Geforce 650M GPU. I know the early MBP 2013 doesn't natively support it. However I was told by this forum and others (posting ...
2
votes
0answers
595 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
183 views

Do you think the mini displayPort port could be broken? No image in VGA

I have a MacBook Pro (13-inch, Mid 2012) and only recently I could buy a VGA mini displayPort adapter. The adapter is good as I have used it with my brother's 15-inch MacBook Pro and two different ...
2
votes
0answers
212 views

Connecting external display at 60 hz on a MacBook 12" 2016

Has anyone got MacBook 12 inch (2016) working with an external display at 60 hz. I know 4K runs at 30 hz unless you do the hack to MacOS but I was wondering how 1920x1080 or 2560x1440 performed.
2
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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
994 views

4k Display on macbook pro 15 retina late 2013 3840 x 2160 @ 60 Hz, but with scaled fonts

I am using an external 4k display (from LG a 27 inch display: LG_27MU67-B) on displayport on my MacBook Pro Retina 15 inch (late 2013). 3840 x 2160 @ 60 Hz works out of the box. Cool! But.. I want to ...
2
votes
0answers
185 views

Incorrect resolution while external display connected

I have an Dell external display which has the best resolution @1440*900. My laptop is 2015 13 inch rBMP MX840. The problem is that when I connected this external display into the Mac, it cannot show ...
2
votes
0answers
3k views

Macbook Air (mid 2013) daisy chaining two Dell U2715H?

I have a Macbook Air (mid 2013) and two Dell U2715H monitors. I am able to connect the one monitor to the Macbook via the DisplayPort-MiniDisplayPort cable. This works great! Now I want to connect ...
2
votes
0answers
217 views

Using a 27" LED Cinema display with a 2009 Macbook

I have an old 2009 Macbook (white) and a 27" LED Cinema Display with a Mini DisplayPort cable. The Macbook only has a Mini DVI connector and I believe it's only single link (since it's not a Macbook ...
2
votes
0answers
1k views

Apple “Cinema HD Display” (DVI) not recognized by MacBook Pro (late 2013)

My new MacBook Pro (late 2013) refuses to recognize an Apple 30-inch Apple Cinema HD Display. That monitor has only a DVI cable. I am using a new Apple-brand Mini DisplayPort to DVI adapter. When I ...
2
votes
0answers
427 views

Trying to connect a Korean IPS (2560x1440) to a Macbook Air (13-inch, Mid 2012, 1.8 GHz Intel Core i5)

I'm trying to get a Macbook Air to work with a Korean IPS. It's not a big deal -- I have it set up on my Linux machine, but I'd like to be able to watch some videos (Amazon Prime HD) that don't work ...
1
vote
0answers
22 views

No more video output over USB-C [Solved]

I bought an LG 27UK600 a while ago, to go with my 2016 Macbook Pro. It worked perfectly for about 3 months, until a few days ago, when the Macbook's display did something weird (some strange colors) ...
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0answers
17 views

How can I debug an unrecognised display in High Sierra?

My external monitor recently stopped being recognised by my MacBook Pro (Early 2011 - 8,2, High Sierra, 10.13.6) I have reset PRAM / SMC and tried a number of troubleshooting steps as outlined in the ...
1
vote
0answers
57 views

External monitor not properly recognized on iMac pro

I have an external monitor for my iMac Pro. It is connected via an USB-C to Displayport adapter from Moshi. Unfortunately, it behaves not optimal: If the monitor is switched on while the iMac is ...
1
vote
0answers
272 views

Macbook Pro 2018 cannot wake up Dell 2713h until unplugged

I have Dell 2713h that has been working well with miniDP <-> DP cable with my previous Mac (Early 2013). I got brand new Macbook Pro (2018) with only USB-C ports, got Unitek USB-C <-> DP ...
1
vote
0answers
25 views

Second monitor not working on startup

I have a 2017 iMac 21.5" 4K with Retina display. My Mac is connected to a second 4K monitor using a Thunderbolt 3 to DisplayPort cable. If I connect the two of them there is no problem, everything ...
1
vote
0answers
206 views

External monitor blurry when MacBook lid is closed

I have an external ASUS PB287Q monitor connected to my MacBook Pro via a display port adaptor. The display settings are as follows: I am using 1080p because when using Default for display the ...
1
vote
0answers
73 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
494 views

USB-C to DisplayPort Cable Problem

I bought this USB-C to DisplayPort cable in order to connect my iMac Pro to this monitor. However, the cable does not work, the iMac does not even recognize the monitor. I tried with a non-Apple ...
1
vote
0answers
96 views

Monitor Speakers Disappear overnight

I've connected to a monitor (34UC88-B) to my MacBook Pro (Late 2016, no Touch Bar) through a DisplayPort to USB-C connector. The monitor has speakers that I use when I'm connected to it. Everything ...
1
vote
0answers
216 views

MacBook Pro 15" displayport/DVI problem

I'm having issues with the video out. When I tried to connect the MacBook to the projector (Christie) via DVI it splashed the macOS desktop for 1 second then a message appeared saying "encrypted" (the ...
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
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0answers
140 views

external monitor from imac: minidisplayport:hdmi, hdmi:displayport, not recognizing connected monitor

I just got a new samsung monitor: S24E650DW and want to connect it to my imac. I had an mini-display to HDMI, and the store didn't have an mini-display to display port, so I thought I could use the ...
1
vote
0answers
257 views

Latest OS X update broke my preexisting dual screen setup (10.12.6)

I just updated my MacBook Pro mid-2012 Retina 15in to the latest OS X and now that I've rebooted it doesn't want to go into dual screen anymore. I've used this setup for a long time now (couple of ...
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vote
0answers
50 views

Mini DisplayPort to HDMI cable to VGA/DVI display?

I'm connecting a MacBook Pro (Retina, 15-inch, Mid 2015) to an Epson PowerLite 811p Projector. I need a 30-foot cable between them, and would prefer to use the HDMI cable I already have. Is it ...
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0answers
311 views

I am unable to get my macbook pro to display on my 4k monitor

I have a Mid-2015 15" Retina Macbook Pro running the latest macOS Sierra version with the AMD Radeon R9 M370X dedicated GPU and I have been trying to get it hooked up to my Crossover 324K 4K monitor ...
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0answers
277 views

HP ZR2740w does not work with MBP 2016 13"

It works with my 2011 MBP 17" but when I plug it into my new 2016 13" MBP it does not. I'm using the DisplayPort input for both. thunderbolt 1 out on the 17" and USB C out on the 13" The cable is ...
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vote
0answers
675 views

Font smoothing not working on Mac Mini

I purchased a new Mac Mini and have attempted to hook it up to my ASUS VS278Q-P LCD Monitor. I was using this monitor in Windows and it looked fine but on the mac mini, it's having a problem where the ...
1
vote
0answers
278 views

MacBook has stopped recognizing external screen

I have an external screen at work, which my MacBook used to recognize without issue. When I came today and plugged it in, it didn't recognize it anymore. It is connected via a Displayport-to-DVI ...
1
vote
0answers
143 views

External screens connected to MacBookPro and its main screen turn off momentarily frequenetly

My Mid 2014 Retina MacBook Pro is connected to two Dell external monitors (U2713HM) via lightening-to-displayport cable Some day my MBP and the two monitors can momentarily turn off and then turn ...
1
vote
0answers
2k views

Use late 2009 iMac as external display for 2013 MacBook Air

I would like to use my late 2009 "27 iMac as an external display for my 13" 2013 MacBook Air. I've searched the internet and found this thread (and it's sources) that suggests that it is possible to ...
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vote
0answers
452 views

Can 2013 retina MacBook Pro (Mavericks) offer same native 1600x1200 via VGA display that worked with 2009 MBP (pre-Mavericks)?

I have a Samsung 213T LCD, with a native resolution of 1600x1200, that worked great as an external monitor, using a DisplayPort VGA adapter, with my 2009 13" MacBook Pro through several OSX releases. ...
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vote
0answers
459 views

Mac Mini 2011 and DP video output is unstable - blanks multiple times in 10 minutes

I brought last year a Mac Mini 2011 (the base model with Intel 3000 HD). Yesterday I brought a Dell U2713H. I now run with two displays connected and the other displays have been reliable before ...
1
vote
0answers
2k views

Can the 2011 Mac Mini support 3 displays with DP 1.2 chaining?

Dell u2713H monitor supports Daisy Chaining. as one of the first monitors I've seen that uses DP 1.2 protocol. In essence, I'm asking if thunderbolt supports / enables / works with DP chaining, but ...