Questions tagged [display]

Display tag helps people find questions relating to internal displays, external displays, network displays and anything that lets you see visually data, status or alerts.

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18 views

Aspect ratio problems w/ Acer widescreen monitor

I'm trying to use an Acer Nitro XZ342CK 34", a 21:9 widescreen (3440 x 1440 res) as an external display for a MacBook Pro (2017, 13"). But the display is quite distorted (vertically squashed)...
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Font rendering on external display broken in Big Sur

The best example I have of font rendering problems introduced by MacOS 11.0.1 Big Sur is with iTerm2. This screenshot shows the window as it appears on the MacBook Pro (15-inch, 2018) Built-in Retina ...
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1answer
32 views

Problems after switching from MacBook Pro 13“ Mid 2018 to MacBook Pro 16” Late 2019

Today I've got my new MacBook Pro 16" Late 2019. It will replace my "old" MacBook Pro 13" mid-2018. I've set it up as a new MacBook and just copied over some files. I now have a ...
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345 views

External displays connected to M1 MacBook Pro in clamshell modes

So I’m considering to upgrade my 2015 MBPr to a new M1 MBP, but one of my major showstoppers is that it only supports one external display. So my question is: Does it support two external displays ...
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1answer
751 views

Connect 2 external HDMI monitors to one USB-C port through dual HDMI adapter

I recently bought a dual HDMI Omars USB-C Laptop Docking Station adapter for my Macbook Pro 2016 13.3" with touchbar. I'm trying to use the HDMI ports to get my two Philips monitors to go in ...
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12 views

Avoid desktops switching between monitors on re-connect

I use my MBP with 3 displays (the MBP display itself, plus two external monitors). Whenever I disconnect (or close) the MBP, and reconnect it later, the "Desktop 1" (and its additional ...
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3answers
4k views

WindowServer High CPU using external monitor - Big Sur

So, few bits of context I've got a MacBook 12" from 2017 It's connected to an external monitor via USB-C to a Satechi V2 dongle and then HDMI to the monitor I'm experiencing a few things: ...
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2answers
806 views

Pale colors on external monitor with MacBook Pro M1

Yesterday I received my new MacBook Pro with the new M1 Chip. So far I'm really amazed! But there is one point: On my external display (LG 27UK850) the colors, especially black, are really pale. Black ...
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29 views

Emulate Windows RDP Display behavior on macOS

When I use RDP to connect from a Mac (MBP 13") -> Windows, I'm presented with a display at my native MBP resolution (2560x1600) and all windows are put onto that virtual desktop, even with two ...
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1answer
146 views

Connecting Thunderbolt 2 Mac to Thunderbolt 3 Display, what is the maximum resolution@100hz , will USB 3.0 work?

I own a MacBook Pro 15" 2015 with a Thunderbolt 2 port. I have recently bought a Samsung cj791 Thunderbolt 3 monitor (3440 x 1440 @ 100Hz; 85W Power Delivery) I plan on connecting the monitor to ...
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1answer
569 views

Unstable external display with M1 MacBook Pro

The late 2020 M1 MacBook Pro does not seem to be playing well with the LG UltraWide 38WK95C 38-inch external display directly connected with a USB-C cable. The display blacks out (as if the cable ...
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1answer
11 views

Connecting two macbook pros and a windows laptop device to external monitor

I have a brand new Windows 10 laptop that I use for wok. I also have a macbook pro from 2012 and a new macbook pro with thunderbolt 3 ports. I want to connect at least the windows laptop with the new ...
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21 views

External monitor doesn't detect MBP with HDMI, detects it with VGA

I just bought a new Acer monitor, SA240Y, 24", 1080p, I have a Dell DA200 USB Type-C to HDMI/VGA/Ethernet/USB 3.0 converter mini dock. I also have a HDMI cable that I know it works. When I try to ...
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1answer
24 views

Does using multiple monitors cause the iMac to run hotter?

I have noticed my iMac (Retina 4K, 21.5-inch, Late 2015) tends to run hot & noisy when watching some simple videos. I have tried whatever light duty diagnostics I can manage, such as activity ...
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20 views

Target display mode almost working, but need disconnect/reconnect

I'm using a 2010 iMac in target display mode with a newer Mac over a USB-C --> Mini DpsplayPort cable. It works except that I can only enable it by disconnecting and reconnecting the cable. When I ...
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1answer
291 views

How to connect regular iPad (6th Gen) to external monitor?

Is it possible to connect an external monitor to a regular iPad 6th Gen? The goal is to use it to watch Netflix, etc. I found some Lightning to HDMI cables, but my monitor only has DisplayPort input. ...
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5 views

Force open applications to shift to external monitor when it's attached

I have a MBP 16" with Mojave installed and an external monitor (LED Cinema Display). The external monitor set as the one w/ the menubar: Before I connect the laptop to the external monitor, I ...
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12 views

Any way to Have Different Brightness Levels for Different Virtual Desktops

As the title mentions, I'm looking for a way to have different brightness settings for the internal virtual desktops on macOS. It seems like an odd request, but it's extremely useful for when dealing ...
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0answers
19 views

Using iMac 2008 as a monitor for Microsoft Surface 7 [duplicate]

I am trying to connect an iMac 2008 to a Microsoft Surface 7. My iMac has a Mini Display Port. Any idea how to connect the iMac to the MacBook Pro, to use as an external monitor? I think I need the ...
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26 views

Macbook pro 2018 13inch display goes to black and pink dots in the display

I own a Macbook Pro 13inch 2018 touch bar model and suddenly it is showing some issues in the display. (works fine in an external monitor though) For a week, I noticed some pink dots everywhere on my ...
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1answer
51 views

HDMI vs DisplayPort output resolutions

I am connecting a MacBook Pro to an external 4K monitor and mirroring the displays. The display actually shows a warning with the actual resolution when the input is not 4K. If I select the "Best ...
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69 views

4K monitor with MacBook Pro 2012 Non-retina not working well in 2K resolution

LG 4K monitor 27 inch (lg-27UK650) Macbook pro 2012 Non Retina 16gb RAM/256 GB SSD Using 4K monitor with mini DisplayPort. Display works randomly, and sometime stops working while in use. Monitor ...
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14 views

How to rotate the touch input on an external touchscreen connected to a Macbook Pro?

I am trying to connect an external touchscreen to a Macbook Pro (Mid 2015, macOS Mojave version 10.14.6). The touch input and the screen works, but by default the orientation of both of them is ...
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82 views

Terminal says 'Read-only file system' after trying to force RGB mode for my display [duplicate]

I'm trying to force RGB mode in macOS to fix the picture quality of my external monitor. I had to do this when I got my MacBook 16". Now, after installing Big Sur, the problem reappears. The ...
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10 views

Will MacBok Pro Retina 15 inch late 2013 run one 4k 27“ and one QHD 27” monitor? [duplicate]

Hi i already have one 4k 27" monitor and one 1080p 24" monitor hooked up to my Macbook. I want to replace the 24" 1080p with a 27" 2k/QHD monitor. Would that work? one 4k and one ...
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7 views

Connecting a THIRD display to Mac Mini (late 2012) via USB 3? [duplicate]

Is it possible to add a third display using a USB 3 video adapter? Will MacOS 10.14.6 recognize it?
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132 views

Washed out colors on LG 27UK650 with MBP 16" 2019 connected through Belkin USB-C to HDMI adaptor

I have a MBP 13" Early 2015 base model. When I connect it to my LG 27UK650 monitor through an AmazonBasics mini Displayport to Displayport cable, the colors are vivid and accurate, not ...
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10 views

Music keeps playing after disconnecting external screen and then closing lid

When I take out the USB-C that connects to my LG screen, and then close the lid after, the music will keep playing. This will happen for around 1 minute, and during this interval, I cannot stop the ...
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190 views

Mac OS Catalina 10.15.7 — Using a USB-C Dock with Display Link and external monitors — Only 1 monitor has the scaled option 1600 x 900

I have a Macbook pro (Mac OS Catalina 10.15.7) which I'm connecting to a docking station via a USBC. I have 2 external monitors 1 connected to the dock via HDMI, 1 via DP. When I go to Settings --> ...
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31 views

How to use an External Display on a MacBook Pro with a cracked built-in-display and without having MacOS installed on it

I have a Macbook Pro (A1425) with a broken display. Because fixing the display is almost as expensive as a new Macbook he bought a new one and gave me the broken one. Last thing he was doing with it ...
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11 views

Monitor turning black when power cable is touching the chassis of the Macbook

I have a Macbook Pro 2018 and an external display connected to it via USB-C on the Macbook to DisplayPort on the monitor. When the tip my (original) (powered) power cable is touching the Macbook ...
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35 views

iMac with black screen, backlight on, no activity

I'm having a problem with a 5k iMac 27" (mid-2015). When I turn it on, the backlight comes on, but the screen is completely black and there’s no activity. An external monitor (plugged in with a ...
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1answer
57 views

Mac mini incompatibility with HDMI to VGA

I was reading about what is happening to me now with a Mac mini and many people report it, what I understood is that from HDMI to VGA, it does not send a signal since it is analog and it does not work....
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18 views

Ghosting on second monitor

I bought a new iMac (2020 and Catalina) with 64G of RAM and when I plugged my second monitor (an old Cinema Display 23", I get ghosting on that monitor. Any fixes? Thanks
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112 views

Using SPECIFIC monitors with Microsoft Remote Desktop

I have two users with a specific request that I am struggling to figure out. They each use a 27" iMac with Retina display and 2 additional external monitors connected via USB Type-C utilizing ...
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0answers
12 views

Occasional Black Screen Issue using Dual External Monitors with MacBook Pro 13" (2017)

I recently purchased a Kensington SD5500T Dock as well as two external monitors (ASUS TUF 24" FHD 144HZ 1MS GTG IPS LED FreeSync Gaming Monitor VG249Q), and have connected both monitors through ...
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292 views

LG 35WN65C-B 35'' and MacBook Pro 16

I a friend of mine just bought me a LG35WN65C-B 35'' and I'm struggling with the resolutions. First of all, is this monitor compatible with the MacBook Pro 16? If so, why I can't match the resolutions?...
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0answers
20 views

How do I keep my MBP's screen as secondary display even if my external monitor (main display) is off or switched to displaying another computer

I'm working with 2 different computers and one main 2K monitor, so I use a switcher hub to jump from displaying one computer to displaying the other. The issue us that my MBP, every time I switch away ...
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0answers
39 views

MacOS 10.14 — always make external monitor the “second” monitor

The Problem: New windows and freshly-launched apps (seemingly) arbitrarily push new windows or the app itself to the second monitor. How do I prevent the seemingly random issue of newly-invoked/-...
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0answers
106 views

External monitor becomes blurrier as the resolution gets smaller

I am connecting a Macbook Pro 13" 2016 to an external monitor (LG 27UL500), that supports up to 4K resolution. They are connected via HDMI and a HDMI-USBC adapter (Apple brand). I have tried ...
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0answers
7 views

Automatically switch to Mirror Display when laptop is closed

I use an external monitor with my MacBook Pro. Most of the time I only use my external monitor, with my laptop closed. In this situation, I use Mirror Display so that everything shows up on my ...
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0answers
14 views

Mac external monitor's resolution not detected properly

I want to setup a new external monitor which I have not yet used with an OSX system. On windows it was working perfectly fine. I own a 2k monitor (2560x1440) but my Mac only detect it as a 1080p ...
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1answer
23 views

Question about cables needed for using a Macbook Air 2013 OR Macbook Pro 2020 laptop with iMac 2013 AND Thunderbolt Display screens

I have the following hardware and I'm a little lost on knowing what cables I need to purchase: iMac 27-inch, Late 2013 Thunderbolt Display (not sure which model exactly, or how to check?) Macbook Pro ...
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1answer
25 views

LG Display via USBC-HDMI indicating as active even after turning it off

I have an LG 4K display connected via USBC-HDMI cable. After turning it off physically with the button it remains active in MacBook Pro 16 settings and I can move the mouse there. It happens also when ...
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2answers
274 views

Working with two screens

Sometimes I connect my MacBook to my TV to watch a movie. I don't use screen mirroring, but have the TV arranged above the Display of the MacBook. Dragging a window with the touchpad to the TV screen ...
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0answers
140 views

What is wrong with this MacBook Air (2015)?

I was donated a MacBook Air 2015 by a friend, and told that the screen didn't work but an external display was fine. Now I have had a closer look, and the screen is black but the machine works fine ...
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1answer
34 views

Connecting 2 monitors and peripherals to a 2017 MacBook Pro

I have a 2017 MacBook Pro (13 inch with two Thunderbolt 3 ports). I wanted to connect 2 monitors as well as a mouse and keyboard to it for work. I was wondering if this would be too much of a workload ...
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2answers
179 views

How to turn off display by pressing the power button of MacBook Pro 2016? (Changing the behaviors of the power buttons)

I'd like to know how to change the behaviors of the power button of the MacBook Pro to have "turn off display" function. (As far as I know, default setting of a single press of the button ...
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1answer
78 views

Macbook Pro 2020 doesn't recognize second monitor while using usbc [duplicate]

I want my MacBook pro-2020 to be closed and have one screen as the main screen(desktop) and the other screen as an extended one. I have 2 new Dell UltraSharp U2419HC monitors, and an UltraSharp U2419H ...
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16 views

change multiple monitor arrangement using command line in MacOS

Is it possible to arrange multiple monitors using the command line or some textual setting in MacOS? I want to have finer control of how the monitors line up. I have heard of https://github.com/...

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