130
votes
How do I control Macbook volume when a DP display is connected?
MonitorControl Control your external monitor brightness & volume on your Mac. It does not require installing a driver.
Proxy Audio Device MacOS app that creates a virtual output device with ...
- 1,401
56
votes
Accepted
How do I control Macbook volume when a DP display is connected?
It's because Apple computers don't support CEC (Consumer Electronics Control).
Basically, macOS doesn't allow you to control end devices attached via HDMI or DisplayPort. Changing the volume would ...
- 97.5k
49
votes
External display works on 30Hz
I had the same issue for a long time. At first, 60Hz worked. Then something happened and I'd only get 30Hz on my 4K Lenovo ThinkVision 27".
I stumbled upon this article and simply went to Display ...
- 591
41
votes
My external monitor doesn't work at full resolution with my MacBook
You can go to System Preferences > Displays, then option-click (press option key while left-clicking) on Scaled to expose additional resolutions that aren't exposed with a normal left-click.
...
- 4,823
30
votes
How do I control Macbook volume when a DP display is connected?
I did the 14 day trial of SoundControl which did work, but I wasn't really willing to pay $15 for something that I feel should be available out of the box for all MacOS machines.
After some more ...
- 401
20
votes
Accepted
MacBook [Pro] or iMac - how many displays, what resolution/frequency?
This may not be the only available resource on this topic, but it is a comprehensive & reliable one...
EveryMac, as the name suggests, has information on every Mac model ever made [also iPhones, ...
- 112k
19
votes
Connecting multiple screens to the 2016 MacBook Pro with Touch Bar
We have a brand new Late 2016 Macbook Pro and 2 Apple/LG 21.5 USB-C 4K monitors. Daisy-chaining/MST does not work. We are using the monitors and nothing else with the original cables.
Only way to get ...
- 366
17
votes
External display works on 30Hz
Try EasyRes app from the app store.
One of my 4K monitors get 30Hz when I connect 2 4K monitors to my MacBook pro.
The 2 monitors works fine together on Windows.
Apple Support doesn't help.
EasyRes ...
- 271
15
votes
Accepted
How to use 2 FullHD monitors to one Type-C port on Macbook Pro 15 2018?
The Startech adapter you've got works as a MST (Multi-Stream Transport) hub. MST is a part of the DisplayPort 1.2 standard, which makes it possible for monitors and computers to support "daisy-...
- 75.6k
13
votes
My external monitor doesn't work at full resolution with my MacBook
Okay, so I managed to work out what the issue was in the end - it was OS X's handling of the EDID data from the monitor. Windows evidently could read the data just fine, which is why it worked ...
- 691
13
votes
Accepted
MacBook Air occasionally freezes when external monitor is connected
More than likely, the issue is, in fact, your Mini DP to HDMI adapter.
The AmazonBasics Mini DisplayPort to HDMI Adapter adapter that you listed is a passive adapter (notice nowhere do they say &...
- 97.5k
12
votes
How do I control Macbook volume when a DP display is connected?
I found two commercial apps which support this:
SoundSource (just enable the "Super Volume Keys" feature in the preferences)
SoundControl
Both apps have a free trial. I've tried SoundSource and it ...
- 1,434
11
votes
MacBook [Pro] or iMac - how many displays, what resolution/frequency?
@Tetsujin answer includes very good third party options. But I often find direct information is better instead of going to a third party.
So get information directly from Apple...
Navigate to Apple'...
- 9,879
11
votes
What are the requirements to use iMac screen as a second monitor - Target Display Mode?
No. You cannot do this. The 2019 iMac is not supported for Target Display Mode.
This is an attempt to write a canonical QA for this issue, as per the Meta post: Where is the list of canonical ...
- 97.5k
10
votes
Apple Macbook Dual Monitor MST
As of 10.10.3 Apple does apparently support MST* on certain hardware:
These Mac computers support multi-stream transport (MST) displays at 60 Hz:
MacBook Pro (Retina, 15-inch, Late 2013) ...
- 226
10
votes
Connecting multiple screens to the 2016 MacBook Pro with Touch Bar
After doing a little research on Dell's daisy chaining monitors, I came across this bit of info on their support site:
Multi-Stream Transport (MST), also known as Daisy Chaining, is a new
...
- 97.5k
10
votes
Connecting multiple screens to the 2016 MacBook Pro with Touch Bar
I'm not sure if this answers the question but I'm testing this out right now with a new MacBook Pro Touchbar 13" with 4 USB-C ports.
In the testing I'm using the Minix Neo C Hub which has
2x USB3 - ...
- 123
9
votes
Accepted
Does USB-C to HDMI take more processing power than direct USB-C to DisplayPort?
Technically speaking, your Macbook has two Thunderbolt 3 ports. From Apple.com:
Two Thunderbolt 3 (USB-C) ports with support for:
Charging
DisplayPort
Thunderbolt (up to 40 Gbps)
...
- 97.5k
8
votes
Accepted
El Capitan and Daisy Chaining
I have a 2015 15" running the El Capitan Gold Master and it still mirrors the displays. I wish they'd sort this out, I'm wasting a Thunderbolt port by having to connect both displays independently.
- 129
8
votes
How to turn off an external display without disconnecting?
There are two solutions I can think of:
SwitchResX
Power plug adapter with remote control
SwitchResX has a number of features including "disable display" which should deactivate it until the ...
- 97.5k
8
votes
External display not recognized after waking from sleep until restarted
I still have the same issue on a macbook pro 15' 2018.
Unplugging and plugging again the screens helps without having to restart the whole thing... except that all open windows jump to the main screen....
- 181
7
votes
My external monitor doesn't work at full resolution with my MacBook
I don't have enough points to add comments, but I just had the same issue and found the reply by Dan Grove extremely helpful.
This reply is in regard with the step 2 of his proposed solution.
It can ...
- 71
7
votes
Accepted
Best option for connecting MacBook Pro with USB-C to monitor with DisplayPort and HDMI?
I would go for USB-C to DisplayPort directly. That would be one relatively inexpensive ($20 to $40 US prices) cable to do the job. Since your display won't charge the MacBook and do video over a ...
- 231k
7
votes
Dell WD15 Dock with 2017 MacBook Pro
This is a hardware limitation.
I tested Dell WD 15 with my 2016 Macbook Pro 15. I used VGA and HDMI to connect my 2 monitors with Dell WD15 but Mac recognized both monitors as one.
Later, I ...
- 71
7
votes
External display works on 30Hz
I'm here to offer a different solution. I have a MacBook Pro 15(2018) connecting with LG Ul500 27'4k monitor. I met the same issue that the external monitor worked on 60hz at the beginning but changed ...
- 71
7
votes
Why is third monitor always mirroring one of my other two?
The problem with your setup does not have to do with the resolution, as others have hypothesized. The problem is that the dock you're using is not supported on macOS for a 3-display configuration.
In ...
- 75.6k
6
votes
Apple Macbook Dual Monitor MST
This doesn’t seem to be supported on the new 2017 MacBook Pro (A1708) with two Thunderbolt 3 ports.
However this is clearly not a hardware limitation since I am able to BootCamp into Windows where ...
- 61
6
votes
Dell WD15 Dock with 2017 MacBook Pro
Allright, just confirmed that this product is not fully compatible with a MacBook.
The dock doesn't communicate powerinfo with the Macbook so doesn't supply it with enough power. (Charging takes more ...
- 161
6
votes
2018 MacBook Pro + Dell U2718Q, single cable for display and USB data
No.
Technically speaking, you have a Thunderbolt 3 Type C port. "C" is the physical charastic of the port, not the USB specification. Being that it's Thunderbolt 3, its carrying several signals:
...
- 97.5k
5
votes
Adjusting brightness on 27" iMac used as external DisplayPort monitor for PC
I just had an issue with not being able to change the brightness on my 27inch iMac in Target Display Mode. It was at full brightness. And the brightness keys on the keyboard hooked up to the TDM Mac ...
- 53
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