Generally a visual screen used to display graphical or text output

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2015 MBP external monitor options

I've just purchased the 13" early 2015 MBP with Intel Iris Graphics 6100, and am planning on investing in two external displays to use at my home office. What kind of 4k support does this chipset ...
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1answer
25 views

How to connect Macbook pro's Retina screen with my Mac mini?

I want to use my Macbook Pro as a screen of my Mac mini(with both OS X and Bootcamp Windows). I've following cables: 1. Thunderbolt to Ethernet 2. Thunderbolt to VGA Any possible solution?
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31 views

Macbook Pro Retina with more than 2 external displays

I have an Macbook Pro with retina display and want to connect additional displays/monitors to it. But sadly 2+1 isn't enough for me, so I'm searching for solution: I want to buy two USB3.0 to ...
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1answer
45 views

Belkin Thunderbolt 2 Express Dock HD dual monitor setup

I have the Thunderbolt 2 Express Dock HD (Model no. F4U085) and I have a question to ask. The dock is attached to a Macbook Pro and everything works fine (audio, ethernet, USB devices etc). However, I ...
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Do the applications use less memory when they are moved to different displays?

Last few days I am spreading everything to separate screens, and noticed that I have few more GB of RAM free this way. I use everything the same way as before. Do applications use less memory when ...
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138 views

MacBook Pro screen freaks out, goes psychedelic — I'm at a loss — suggestions?

Been using and taking care of Macs since 1985, and I've never seen this before. Can't find anything online. Anyone? Graphics card going south? Reboot fixed the problem, but it returned 2x the next ...
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1answer
17 views

Display preferences pane could not be loaded

I am running OS X 10.10.3 and I tried to rotate the internal display of my Macbook Pro using this rotation trick. After I selected the 180 degree rotation, the screen rotated properly but all the ...
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1answer
71 views

30hz vs 60hz 4K output

I am currently using a MacBook Pro 13" 2015 model with a Samsung U28D590 UHD display. Currently I am using the HDMI port of the monitor with a mini-displayport to HDMI adapter and receive 4K 30hz ...
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1answer
17 views

How to hide screen when logged into remote iMac

I use Back-To-My-Mac to log into my office computer from home and vice versa. Normally, after I log into my home laptop, I darken the screen for both energy efficiency and privacy and that works ...
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1answer
23 views

How many external monitors does the iMac 27" with 5k display support?

Specs indicate just 1. Has anyone connected more than 1 monitor successfully? How many can you connect in total?
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37 views

Connect a Thunderbolt Display to windows 8 desktop

I've been spinning around with this question but couldn't find the answer. Hope someone here could help. I have been trying to connect my Windows 8 desktop to a Thunderbolt Display 27" without ...
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73 views

MacBook Pro no longer outputs native resolution to external monitor when rotation is on

I have a mid 2012 Retina MacBook Pro running Yosemite 10.10.3. As of last week, I was running an external Dell 24" monitor connected with a Thunderbolt to DisplayPort cable and rotated to portrait ...
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1answer
40 views

How to set a screen resolution other than what is displayed in the scaled list?

I need to set my screen resolution 1280x720 (this is a requirement for a screencast I need to create). When I go into the Display - Scaled menu this is no longer available as an option on Yosemite, ...
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32 views

Mac Mini and Wide (21:9) Monitor / Display Port Issue

When I boot up my Mac Mini after moving it from my office at work where it worked with my wide (21:9) monitor to my house, when I boot it the display does not show up on the monitor anymore. Waits ...
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1answer
22 views

External display resolution - cursor gets lost

I connected my new K272HUL display to my Macbook Pro Retina 15". The issue is that the resolution that the monitor displays seems to be too large (2560x1440) and my mouse gets lost in the display. My ...
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39 views

Can I prevent OS X from resizing and moving windows when sleeping while attached to an external monitor?

I have my Retina Macbook Pro connected to a ASUS 2560x1440 display via the HDMI port. I keep the laptop lid closed so the monitor is the only display in use. When I sleep my computer (via hot corners ...
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36 views

Yosemite X11 forwarding: display lost after a while

I connect my Yosemite 10.10.2 Mac to a Debian 3.2.65-1+deb7u2 box through X11 (version XQuartz 2.7.7 (xorg-server 1.15.2)). I use ssh -A 192.168.1.19 to connect to the Debian box. At the ...
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49 views

Bright Pixels on MacBook Pro Retina

I was on a normal day, doing my thing when I noticed a pile of dust on my screen. So I did what most people would do, I grabbed a clean microfiber cloth, took another barely damp microfiber cloth and ...
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54 views

Screen goes randomly black in OS X

A Macbook screen goes black randomly, sometimes completely black and sometimes near black (you can still see the GUI). This happens in OS X Yosemite and also during USB (Mavericks) (Yosemite) install ...
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1answer
62 views

Reconfigure Thunderbolt DisplayPort Monitor Ordering

I have 2x Dell U2412M monitors connected via Thunderbolt/Mini-DisplayPort. Even when I swap the ports connecting to the Mac, the monitors keep their #1 and #2 designations. My physical monitor plan: ...
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33 views

Macbook pro mid 2012 15" i7 2,3 display dark after mainboard repair

I destroyed my MacBook (mid 2011 with 1440 resolution) with one liter of water in the main board. When the logicboards got chaper I decided to buy one (mid 2012 with 1440 or 1680 resolution) and built ...
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1answer
32 views

Hide the status bar on an iPhone

Is it possible to hide the status bar (battery indicator, time, etc.) on an iPhone? I can't find any indication of this in settings but I can't figure out if it's just not possible or if I'm looking ...
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1answer
45 views

Screen resolution of MacBook Pro Retina

I have a MacBook Pro 13" Retina-display (Late 2013 model) I recently bought a very cheap HDMI cable to plug it on my tv in my room (for Screen Mirroring and sometimes, Screen extend). Since it's ...
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1answer
101 views

How can I make 3 external displays function with my 13-inch Retina MacBook Pro (Mid 2014)?

How can I make 3 external displays (4 total, or 3 if running in closed book mode) function with my 13-inch Retina MacBook Pro (Mid 2014)? Regardless of closed-book/clamshell mode, I am unable to make ...
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43 views

Triple-non-thunderbolt-display iMac — would this work?

Consider the following: I have a 21.5" (Mid 2011) iMac with a single Thunderbolt port that supports "two Thunderbolt displays". This means normally you would daisy-chain one thunderbolt display to ...
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1answer
50 views

Will my Macbook Air be able to handle dual 4k displays?

I have a mid 2013 Macbook Air and I want to purchase two 4k monitors and hook it up to the MBA. Will my Macbook Air be able to hand the two monitors at it's full resolution? If so, what cables would ...
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25 views

How do I make my MacBook's logical resolution the same as its physical one?

My MacBook has 2,880 × 1,800 physical, R/G/B pixels in its display (1800p). However, Mac OS renders at 3840 × 2400 virtual pixels (4k). I don't know or care why, but I do know that this ...
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24 views

MacBook Pro 10.6.8 mid-2011 and HP Compaq LA2205wg working only when MBP on battery

Weird behavior of MBP and external HP screen. When MBP is on battery - everything works perfect. But when power supply is connected to MBP - external HP screen is going black. "Monitor going to sleep" ...
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1answer
127 views

Thunderbolt display firmware update 1.2 keeps reappearing, but is not compatible

I've got a problem with the Thunderbolt display firmware 1.2. My screen is not compatible, because it was purchased in 2012 and the update can not be performed. However, the update keeps reappearing ...
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49 views

Should I buy a new 27“ Thunderbolt Display or a 27” 2013 iMac?

I'm starting out as a web designer and developer and it's time to invest in a larger second display for my work. I currently have a 2013 Macbook Pro. Apple haven't updated the Thunderbolt Display ...
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1answer
103 views

How to set the Display aspect ratio to 16:9 explicitly when using a VGA adaptor

Background I was presenting at a venue where the projector supports 1280x720px resolution (16:9) via VGA cable (I've previously used the same room and equipment on an older 2011 MacBook Pro running ...
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157 views

Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"?

Can I connect iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? How can I connect them? I read some articles that say it can be done with Mini DisplayPort-to-Mini ...
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1answer
63 views

WindowServer[250]: _CGXGLDisplayContextForDisplayDevice: No matching context for device (0x7fcfcaf18220) - disabling OpenGL

I'm getting vast amounts of these messages in my Console: 13/03/2015 16:02:20.924 WindowServer[250]: _CGXGLDisplayContextForDisplayDevice: No matching context for device (0x7fcfcaf18220) - disabling ...
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25 views

Mac as digital signage - change current video

I'm working in an environment where we have a Mac Mini connected to a display in a common area. The display is simple - it plays a preset video in Quicktime on a loop. Iwould like to be able to ...
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54 views

Auto Adjust Brightness Secondary External Non-Apple Monitor

I have recently purchased a Dell S2340l monitor to extend my MBPr late 2013 screen. So far I can say it's a great monitor, colors are great, but still in the test phase... Whatsoever, I really love ...
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1answer
231 views

LG 31MU97-B monitor support on rMBP 15"

I want to buy LG 31MU97-B as a new external monitor for my Macbook Pro Retina 15" late 2013 with Intel Iris Pro only. But this monitor has real 4k resolution of 4096 x 2160! Can i get this resoluton ...
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237 views

Can Dual Link DVI do 4K at 60Hz?

I've got a 4K monitor attached via Dual Link DVI. It does 4K, but only at 30Hz. It does 60 Hz up to 2560x1440; anything above that is 30Hz. Is that a limitation of DVI?
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2answers
28 views

In which .plist is the underscan setting stored?

I'm trying to write a script which changes the underscan value on my Mac mini, but I haven't found the .plist file containing the setting. Does anyone know where the underscan setting is saved?
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36 views

Can humidity affect the display on my Macbook Air

For the second time now on our annual trip to the Keys, my 2012 MacBook Air's display has gone blank and only flickers on occasionally. Same thing happened last year. The problem disappeared ...
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1answer
32 views

iMac display RGB values

Why does the iMac display show non-zero values for blue and green pixels for a .png image whose blue and green color planes are zero? I used the digital color meter to show the non-zero values for ...
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1answer
534 views

MacBook Pro 11,3 with dual Dell P2715Q 27" Monitors

I have two Dell P2715Q 27" external monitors I want to connect to my 15" MacBook Pro 11,3 with OSX 10.10.2 ordered around September 2014. I've tried connecting it as follows: note: tb = thunderbolt, ...
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1answer
38 views

How can I set the display settings using command line

I would like to configure the 'Scaled' property of my Macbook Pro display using the command line. How could I do that?
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60 views

Mac Mini pair workstation - 4 monitors, 2 as desktop, 2 mirrored. Is it possible?

I'm looking to purchase a new (2014) mac mini to use a pair programming workstation. 2 keyboards, 2 mice, 4 monitors. Each person would have their own keyboard and mouse and dual monitor display. ...
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77 views

Force aspect ratio with crop on external monitor while mirroring display

When I connect my Macbook Pro to an external monitor with a different aspect ratio than 16:10 (which the Macbook Pro has) and let it mirror my display, the resolution is automatically changed to ...
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37 views

External Monitor in Portrait Mode with MacBook Pro

I've been searching around and found the "alt/option + command keys" trick, but doing this doesn't provide the rotation drop down on my Dell monitor (P2714H) (only offers to rotate on my MBP screen). ...
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1answer
22 views

Lost screen on Panasonic 55 inch with Mac mini

I tried to set the screen from the Panasonic to best fit. When I did that on my Mac mini the screen went to snow. I tried to get it back by on losing the HDMI cable power of the Mac. Nothing helps. ...
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28 views

Can you swap the display of a mid 2012 non-retina macbook pro with a retina version from the same year?

I know there are multiple versions of the retina display (LG/Samsung), and that officially they're incompatible with each other and the non retina version. But... Unofficially, is it possible? Has ...
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51 views

built-in screen flickers on macbook air

I have an early MBA 11" (Jan 2011), dual booting to Mavericks and windows 7. Recently it has started exhibiting the following symptoms: built-in display flickers during boot and continues to flicker ...
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1answer
58 views

Apps open outside displays on external monitors (Yosemite iMac 27" 3.4ghz i7)

I have two external monitors from my iMac, both are rotated in portrait mode. I assign apps to the outside displays via the dock so they open in a particular display. When I open an App that is ...
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11 views

Fixed Yosemite flickering icons on menu toolbars. The only solution that worked for me. Solved [duplicate]

I have been struggling for a bit with the flickering of icons (dropbox, battery, wi-fi, time, etc) on the menu bar (top-right corner of the screen) with Yosemite. I've tried all the hardware resets, ...