This question already has an answer here:. 4 answers Marking this question as an already existing question is wrong as the other refers to a Mid 2012 NONretina Macbook running 10.10.1 instead of 10.10.3/4 I think that daisy chaining DisplayPort screens under OS X 10.10.4 is not possible, due to software limitations defined by Apple. After Googling for some hours, spending 1.5 hours talking to the Apple Support and another hour talking to the Dell support, I don't know where else to find a solution than here. This is my problem: I just bought a new running OS X Yosemite 10.10.3.

I have two screens. I want to use one of my two Thunderbolt/DisplayPort ports from my MacBook to connect both screens via a daisy chain. (I know that I could easily plug each screen into its own Thunderbolt/DisplayPort. But I need to use one Thunderbolt/DisplayPort for my Ethernet adapter, so I only have one left.) So the setup I'm trying to run looks like the following: MacBook -(from mDP to DP)- Screen 1 -(from DP to mDP)- Screen 2 However, whenever I connect the cables like this, I only receive the same image on both screens, i.e. The image is mirrored to both screens. I don't understand why this is the case.

If I connect the same setup to a Windows machine, it is working fine. While Googling I found some articles which say that.

Both screens support DisplayPort 1.2 as well as MST (') and I enabled Display Port 1.2 on both screens within the menu. So, as Windows machines and a MacBook running Windows support this setup, I concluded that it has something to do with OS X running.

I tried to download the newest drivers for my graphic card form. However, I learned that Apple provides the drivers, not Nvidia (“”). So I think that Apple is intentionally restricting the usage of Display Port 1.2 with non-Apple screens by limiting this function within the drivers.

Can this be true? Does anybody have a solution for this problem, or know what to do? I tried to find open source drivers for my graphic card and my MacBook which would enable this function, or maybe some hacked drivers, but had no luck yet. Update 1: 3 June 2015 After Googling again for some hours, I decided to test the statement (link above) that a MacBook running Windows is able to daisychain. I installed Windows 8.1 on my MacBook via Bootcamp. When running Windows 8.1 with the actual Nvidia drivers, daisychaining multiple displays through one Thunderbolt port is possible.

So I conclude that Apple is intentionally limiting the capabilities of OS X, to force customers to buy their Thunderbolt displays if they want functionality that should be possible with normal displays, and breaking the. I contacted the Apple Support again, and met a very competent and helpful supporter, who deep-dived into my problem. He escalated the problem to the European technology department of Apple, questioning why daisychaining display port monitors is not possible on OS X. I am still waiting for a response from the department, but this can take up to 5 days, according to the supporter. If I get any answer, I'll post it here. Update 2: 6 June 2015 Today my Apple support rep gave me a call to inform me that he received a response from the European technology department of Apple.

However, the department only referred to a of Apple and quoted the following '. as each Thunderbolt port can support one Mini DisplayPort display.' Therefore, they could only speculate why daisychaining does not work but decided to not do so as it wouldn't help. My support then told that this answer is not very satisfying and asked for further help.

It seems like this daisychaining problem is either not known at Apple and therefore not solved ( maybe we can make Apple pay attention by spamming the developers with the form mentioned below), or Apple does not want to solve the problem in order to force customers to buy the more expensive Apple Thunderbolt Display. I am keeping this thread up to date for other people searching the web for the same problem. If you are experiencing the same problem, then please fill out and tell the developers to change the macOS behaviour regarding daisychaining.

Apple does not support Display Port daisy chaining. Using Thunderbolt screens, this would work, and because the Apple screen is a Thunderbolt screen, that works. The fact that Windows supports DP daisy chaining, does not mean that Apple does this intentionally to force users to buy their monitor.

I wouldn't even call this stupidity, just ignorance, or the simple fact that nobody at Apple was aware of this situation and didn't test for it, or they did test for it and decided it wasn't worth the money. This is answered at already.

Apple is not 'intentionally limiting' anything. They simply didn't add MST support to OS X because their hardware doesn't need it. The physical Mini DisplayPort connector on your Mac can operate in two modes, one is DisplayPort itself. In this mode, you can connect a single 4K 60 Hz monitor to your Mac. Or, you can use it in Thunderbolt mode where the displays use the Thunderbolt bus which has two DisplayPort signals multiplexed into the stream and each monitor gets one signal out - but it's DP 1.1a so 4K 30 Hz or Full HD 60 Hz.

. User’s Guide Dell U2414H Model No.: U2414H Regulatory model: U2414Hb. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. Is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Microsoft and Windows are either trademarks or registered trademarks of Microsoft. Corporation in the United States and/or other countries, Intel is a registered trademark of Intel Corporation in the U.S. Contents About Your Monitor. Package Contents.Product Features.Contacting Dell. Package Contents Your monitor ships with the components shown below. Ensure that you have received all the components and Contacting Dell if something is missing.

NOTE: Some items may be optional and may not ship with your monitor. Some features or media may not be available in certain countries. Product and Safety Information Guide Product Features The Dell U2414H flat panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include:. U2414H: 60.47 cm (23.8-inch) viewable area display (measured diagonally). Capability to switch from wide aspect to standard aspect ratio while maintaining the image quality. EPEAT Gold Rating.

U2414H monitor is BFR/PVC-free (Halogen-free) excluding external cables. TCO-Certified Displays.

Meets NFPA 99 leakage current requirements. Secures monitor with security lock (security lock not included). Barcode serial number label Refer to this label if you need to contact Dell for technical support. USB downstream port Connects your USB device.

You can only use this connector after you have. Label Description AC power cord Connect the power cable. Connector Dell Soundbar Attach the optional Dell Soundbar.

(Concealed below mounting slots removable plastic sheets) DP in connector Connect your computer with DP cable. Mini DisplayPort in Connect your computer with Mini-DP to DP cable.

To lock the stand to the monitor using a M3 x 6 mm screw (screw not included). Headphone usage is not supported for the audio line out connector. Monitor Specifications Flat Panel Specifications Model U2414H Screen type Active matrix - TFT LCD Panel type In Plane Switching Viewable image Diagonal 604.70 mm (23.8 inches).

Color depth 16.77 million colors Color gamut CIE1976 (85%), CIE 1931. (72%). U2414H sRGB coverage is 96%. Resolution Specifications Model U2414H Horizontal scan range 30 kHz to 83 kHz (automatic) Vertical scan range 56 Hz to 76 Hz (automatic). 720 (1440) x 480i 720 (1440) x 576i Electrical Specifications Model U2414H Video input signals. HDMI 1.4 (MHL 2.0)., 600mV for each differential line, 100 ohm input impedance per differential pair. DisplayPort 1.2., 600mV for each differential line.

Physical Characteristics Model U2414H Connector type DP, black connector (include DP in and DP out); Mini DisplayPort; HDMI (MHL); USB 3.0 Signal cable type. Digital: detachable, HDMI, 19 pins. Digital: detachable, MHL, 19 pins. Digital: detachable, Mini-DP to DP, 20 pins. Environmental Characteristics Model U2414H Temperature Operating 0 °C to 40 °C (32 °F to 104 °F) Non-operating.

Storage: -20 °C to 60 °C (-4 °F to 140 °F). Shipping: -20 °C to 60 °C (-4 °F to 140 °F). Activate the computer and the monitor to gain access to the OSD. ® NOTE: This monitor is ENERGY STAR -compliant. Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the monitor. Maximum power consumption with max luminance, and USB active. About Your Monitor.

Pin Assignments DisplayPort Connector 20-pin Side of the Connected Number Signal Cable ML0(p) ML0(n) ML1(p) ML1(n) ML2(p) ML2(n) ML3(p) ML3(n) AUX(p) AUX(n) Re-PWR +3.3 V DPPWR About Your Monitor. Mini DisplayPort Connector 20-pin Side of the Connected Number Signal Cable Hot Plug Detect ML3(n) ML3(n) ML2(n) ML0(p) ML2(p) ML0(p) ML1(n) AUX(p) ML1(p) AUX(n) +3.3 V DPPWR About Your Monitor. HDMI Connector 19-pin Side of the Connected Number Signal Cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2- TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1- TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0- TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCK. MHL Connector 19-pin Side of the Connected Number Signal Cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2- TMDS DATA 1+ TMDS DATA 1- MHL+ TMDS DATA 0 SHIELD MHL- TMDS CLOCK+ TMDS CLOCK- Reserved (N.C. On device) DDC CLOCK (SCL) DDC DATA (SDA) VBUS (+5V, 900mA maximum). Universal Serial Bus (USB) Interface This section gives you information about the USB ports that are available on the monitor. NOTE: This monitor is Super-Speed USB 3.0 compatible.

Transfer Speed Data Rate Power Consumption. Super-speed 5 Gbps 4.5 W (Max, each port) High speed 480 Mbps 4.5 W (Max, each port).

During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state which are hard to see and do not affect the display quality or usability. For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:.

Dell Ultrasharp U2414h For Mac Pro

Maintenance Guidelines Cleaning Your Monitor CAUTION: Read and follow the Safety Instructions before cleaning the monitor. WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor:. Setting Up the Monitor Attaching the Stand NOTE: The stand is detached when the monitor is shipped from the factory. NOTE: This is applicable for a monitor with a stand.

When any other stand is bought, please refer to the respective stand setup guide for the set up instructions. To attach the monitor stand: Remove the cover and place the monitor on it. Connecting the HDMI cable Connecting the MHL cable Connecting the black DisplayPort (Mini-DP to DP) cable Setting Up the Monitor. Connecting the monitor for DP Multi-Stream Transport (MST) function NOTE: U2414H supports the DP MST feature.

To make use of this feature, your PC Graphics Card must be certified to DP1.2 with MST option. The default out of factory setting in the U2414H is DP1.1a. Go to DisplayPort 1.2 selection. Select Enable or Disable accordingly Follow the screen message to confirm selection of DP1.2 or DP1.1a. Setting Up the Monitor.

B) Monitor fails to show any content (blank screen) Use the button to highlight DisplayPort or Mini DisplayPort. Press and hold the button for approximately 8 seconds. The DisplayPort configuration message will appear: Use the button to enable DP1.2 or button to exit without making any changes.

Connecting the USB 3.0 cable After you have completed connecting the Mini-DP to DP/DP/HDMI cable, follow the procedures below to connect the USB 3.0 cable to the computer and complete your monitor setup: Connect the upstream USB 3.0 port (cable supplied) to an appropriate USB 3.0 port on your computer. Plug the power cable on your monitor into a AC outlet. Connect the (micro) USB port on you MHL source device to HDMI (MHL) 1 or HDMI (MHL) 2 port on the monitor with a MHL certified cable (See Bottom View details.) Turn On the monitor and the MHL source device. Attaching the Cable Cover NOTE: The cable cover is detached when the monitor is shipped from the factory. Fit the two tabs on the bottom part of the cable cover to the groove on the back of the monitor. Press the cable cover till it snaps into place. Removing the Monitor Stand NOTE: To prevent scratches on the LCD screen while removing the stand, ensure that the monitor is placed on a soft, clean surface.

Removing the Cable Cover Press the tab on the cable cover. Remove the two tabs on the bottom part of the cable cover from the groove on the back of the monitor. Wall Mounting (Optional) (Screw dimension: M4 x 10 mm). Refer to the instructions that come with the VESA-compatible wall mounting kit. Mount the monitor on the wall by following the instructions that comes with the wall mounting kit. NOTE: For use only with UL-listed wall mount bracket with minimum weight/load bearing capacity of 5.88 kg.

Setting Up the Monitor. Operating the Monitor Power On the Monitor Press the button to turn On the monitor. Using the Front Panel Controls Use the control buttons on the front of the monitor to adjust the characteristics of the image being displayed. As you use these buttons to adjust the controls, an OSD shows the numeric values of the characteristics as they change. Use this button to directly access the Brightness/Contrast menu. Shortcut key/ Brightness/Contrast Use the MENU button to launch the On-Screen Display (OSD) and select the OSD Menu.

See Accessing the Menu System. Menu Use this button to go back to the main menu or exit the OSD main menu. Using the On-Screen Display (OSD) Menu Accessing the Menu System NOTE: If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you change the settings and then wait for the OSD menu to disappear. Press the button to launch the OSD menu and display the main menu. Main Menu for digital (DP) input Press the buttons to move between the setting options.

As you move from one icon to another, the option name is highlighted. See the following table for a complete list of all the options available for the monitor. Press the button once to activate the highlighted option. Icon Menu and Description Submenus Brightness/ Use this menu to activate Brightness/Contrast adjustment.

Contrast Brightness Brightness adjusts the luminance of the backlight. Press the button to increase the brightness and press the button to decrease the brightness (min. NOTE: Manual adjustment of Brightness is disabled when Dynamic Contrast is switched On. Input Source Use the Input Source menu to select between the different video signals that may be connected to your monitor. Auto Select Press to select Auto Select, the monitor scans for available input sources. DisplayPort Select the DisplayPort input when you are using the DisplayPort (DP) connector.

Input Color Allows you to set the video input mode to: Format RGB: Select this option if your monitor is connected to a computer (or DVD player) using the HDMI cable (or DisplayPort cable); or MHL devices using MHL cable. YPbPr: Select this option if your monitor is connected to a DVD player by YPbPr using HDMI cable (or DisplayPort cable). Preset Modes When you select Preset Modes, you can choose Standard, Multimedia, Movie, Game, Paper, Color Temp., sRGB or Custom Color from the list. Standard: Loads the monitor's default color settings. This is the default preset mode. Multimedia: Loads color settings ideal for multimedia applications. Ensure your Graphics Card can support these features before selecting DP 1.2.

Wrong setting may result in blank screen. Some Graphics Cards do not support MCCS (Monitor Control Command Set) at DP 1.2. In these cases, DDM (Dell Display Manager) may not run. Reset Display Select this option to restore default display settings. Energy Settings Allows you to enable or disable USB function during monitor standby mode.

NOTE: USB ON/OFF under standby mode is only available when the USB upstream cable is unplugged. This option will be greyed out when the USB upstream cable plugs in. Power Button Allows you to set the power LED indicator On or Off to save energy. Menu Settings Select this option to adjust the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen, and so on. Language Language options set the OSD display to one of the eight languages (English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese or Japanese). Other Settings Button Sound The monitor beeps everytime a new option is selected in the menu. This feature enables or disables the sound.

DDC/CI DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance, and etc.) to be adjustable via the software on your computer. Helps reduce minor cases of image retention.

Depending on the degree of image retention, the program may take some time to run. Conditioning You can enable this feature by selecting Enable. Reset all settings under the Other Settings menu to the factory Reset Other preset values. OSD Warning Messages When the Dynamic Contrast feature is enabled (in these preset modes: Game or Movie), the manual brightness adjustment is disabled. When the monitor does not support a particular resolution mode, you will see the following message: This means that the monitor cannot synchronize with the signal that it is receiving from the computer.

When the monitor enters the Power Save mode, the following message appears: Activate the computer and wake up the monitor to gain access to the OSD. If you press any button other than the power button, one of the following messages will appear depending on the selected input: HDMI (MHL)/Mini DisplayPort/DP input If either HDMI (MHL), Mini DisplayPort, or DP input is selected and the corresponding.

Troubleshooting for more information. Operating the Monitor. Depending on your computer, complete one of the following procedures: If you have a Dell desktop or portable computer:. Go to enter your service tag, and download the latest driver for your graphics card. If you are using a non-Dell computer (portable or desktop):.

Vertical Extension NOTE: The stand extends vertically up to 130 mm. The figure below illustrates how to extend the stand vertically. Rotating the Monitor Before you rotate the monitor, your monitor should be fully vertically extended (Vertical Extension) and fully tilted up to avoid hitting the bottom edge of the monitor. Operating the Monitor. Rotate clockwise Rotate counterclockwise Operating the Monitor. (optional).

NOTE: To use the Display Rotation function (Landscape versus Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to www.dell.com/support and see the Download section for Video Drivers for latest driver updates. Landscape (Top-bottom) Supported by wall mounting solution (optional) Portrait Operating the Monitor. After you have rotated your monitor, you need to complete the procedure below to adjust the Rotation Display Settings of your system. NOTE: If you are using the monitor with a non-Dell computer, you need to go the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display. Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. Self-Test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly.

If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: Turn off both your computer and the monitor. This box also appears during normal system operation, if the video cable becomes disconnected or damaged. Turn Off your monitor and reconnect the video cable; then turn On both your computer and the monitor.

If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly. To run the built-in diagnostics: Ensure that the screen is clean (no dust particles on the surface of the screen). Unplug the video cable(s) from the back of the computer or monitor. The monitor then goes into the self-test mode. Press and hold Button 1 and Button 4 on the front panel simultaneously for 2 seconds.

Cycle power On-Off. Spots.

Pixel that is permanently Off is a natural defect that can occur in LCD technology. For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:support/monitors. Stuck-on Pixels LCD screen has. Image retention Faint shadow.

Use the Power Management feature to turn off the monitor from a static from the static at all times when not in use (for more information, see image left on image displayed Power Management Modes). The monitor for appears on the. Universal Serial Bus (USB) Specific Problems Specific What You Possible Solutions Symptoms Experience USB interface is USB peripherals. Check that your monitor is turned On. Not working are not working. Reconnect the upstream cable to your computer. Reconnect the USB peripherals (downstream connector).

For customers in the United States, call 800-WWW-DELL (800-999-3355). NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again.

NOTE: If you are unable to set the resolution to 1920 x 1080, please contact Dell™ to inquire about a graphics adapter that supports these resolutions. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. NOTE: If you are unable to set the recommended resolution, please contact the manufacturer of your computer or consider purchasing a graphics adapter that will support the video resolution.