How to setup dual external monitors on a MacBook Pro 15" A1398?

Need to setup dual monitors for my new MacBook Pro 15" Retina Display A1398. I am in instructional designer and need the larger display from dual monitors. I think the best way is to connect using a Thunderbolt to HDMI adapter in the two Thunderbolt ports or HDMI out of the one HDMI port and the other using a Thunderbolt to HDMI adapter. I have two Thunderbolt ports, two USB ports and one HDMI port. How do I setup OS X Mavericks for this as well. I want to run it in clamshell mode. Wondered if there are any better or easier ideas?
With peace and love,
Sam K.

Hi! I recommend you using both thunderbolt ports with their HDMI adapters, i don't know why but in my case it has worked better than having one monitor connected on one thunderbolt port and another on the HDMI port. As for the clamshell mode I recommend you this articles: Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display and http://osxdaily.com/2012/06/08/quickly-enter-clamshell-mode-with-an-external-dis play-in-mac-os-x/.
This are a few recommendations:
1. Use a usb mouse and keyboard, because sometimes bluetooth ones are not that trusty
2. You could buy one of the fancy things (you can see one on the second article) that hold your macbook up to prevent overheating. If you can't afford one or you don't to buy one, you can prop your macbook with some books on the side of the union between the lid and the keyboard (i don't know the word in english) and a very heavy one on the other side.

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One employee suggested that he use the VGA adapter and then get a VGA splitter. I'm not exacty certain that would work though. Wouldn't that just mirror the display on two screens instead of allowing an extended desktop? Also it looks like expensive Apple displays have ports so that you can daisy chain thunderbolt devices out of those monitors but this company will not go for the cost of those displays.
Am I missing anything? Any suggestions would be helpful.
Thanks!

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Dear Jean:
It sounds like you are trying to get your external monitor to act as the primary viewing screen. For example it would have your Doc, Icons, Etc. In order to make the external monitor the primary screen you have to:
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Drag the toolbar to desired display
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I don't know that, I'm afraid. I've used an external monitor a few times on my 2011 MBP and it appeared to work perfectly whether in mirrored mode or not, but I'm not able to make time lapse measurements. Many people seem to use the arrangement so I would presume it's fine for video editing, but don't take my word for it.

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Hi,
I am not going to be much use here.
I don't have a computer with Thunderbolt.
The computer I do run a second screen on is a G4 running Leopard and in the Energy Saver there is no setting for the second screen to be set independently than the main screen.
I think it may pay to ask again in the Lion Forum Community.
8:03 PM Friday; September 23, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb( 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

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Also some times after a reboot, the adapter would stop working. I would have to unplug it, and login, and then plug it back in.
Coping file to my USB 2 harddrive seemed to cause more lag to the USB to Video Adapter.
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Details:
-Mid/Late 2007 15" model
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-Start-up chime does sound

Read here:
https://discussions.apple.com/thread/2056418?threadID=2056418&tstart=15

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Good day, I have searched the forums but have not found a solution to my problem...
I recently purchased a Dell 2005FWP External Monitor and plugged it in (DVI to VGA) to my MacBook Pro. It automatically adjusted to a 800x600 resolution which of course is not ideal. The menu gives a long list of display resolutions but most of them are "not available" when I click on them. I have tried switching the docks and the monitors to the opposite sides on "Arrangement" of displays but I still don't get a different menu. I can't seem to find the menu of resolutions for the MacBook Pro either.
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I have a ViewSonic VX2035wm display connected to my MacBook Pro - the image on the external monitor shows ghosting and double images like we used to see on old tube TVs.
Here is a post from MacFixIt.com that details my problem.
http://www.macfixit.com/article.php?story=20081020231611468
Late-2008 MacBooks: Image problems on external displays with mini-DisplayPort converters
The new MacBooks and MacBook Pros come with a Mini-DisplayPort adaptor for external video, and Apple supplies various adaptors (DP to DVI, and DP to VGA) to accommodate current monitors. Some users are having difficulties with their adaptors when connected to certain monitors.
Apple Discussions poster Ocell writes:
"I have the exact same problem with my Viewsonic VG2030wm 20" LCD. I've ruled out bad DVI cables. The Macbook Pro works with my 12" Cintiq's display, and the Viewsonic works with my Intel iMac, so the video out/mini displayport adaptor/dvi cable/viewsonic display are all operational. It's just the specific combination of the Macbook Pro and Viewsonic that doesn't work."
This problem has been found to frequently occur with DVI adaptors attached to their computers, however it has also happened with users connecting to the VGA adaptors. In these cases, unlike the DVI situation where no signal gets through, users have noticed the screen blinking or shutting off at random times. While drivers may definitely be suspect, the problem appears to be hardware-related since users have experienced the issue both in Mac OS X as well as in Windows via Boot Camp.
The DisplayPort connections used on the new MacBooks have slight differences in their protocols than other connection types, which allows for expanded functions in smaller connectors, but also can run users into difficulties, especially when older connetion types are used. While there could be software involvement in this problem, it sounds like there's most likely a firmware-related problem that hopefully can be patched by Apple, or at least be accommodated for in a driver update.
Things to Try
Reset the monitor to defaults If there is a method for fully resetting the monitor, try doing that first. Most have a menu option to reset to factory defaults, but in addition there may be a way to fully reset the device such as unplugging it for an extended period of time. This information may be available on the manufacturer's website, or users can just try unplugging the device for an extended period such as 20-30 minutes.
Toggle various monitor setups In the "Displays" system preferences, toggle desktop mirroring on and off to see if the monitor is not just extending the desktop to the second monitor. Especially if users have black wallpaper on their desktops, secondary monitors that are just serving as extended desktops may appear to be off when connected. Alternatively users can try dragging documents off the sides of their main monitor to see if they go over to the second monitor.
Reset the computer Users might try resetting the computer's PRAM (which does contain some graphics parameters) by holding the options, command, P, and R keys down at bootup until the computer resets and makes the boot chimes again. Release the keys and allow the computer to boot normally. Additionally, users might try resetting the computer's system management controller. Here is an Apple Support article on how to do that.
Use a different monitor Unfortunately, with hardware problems such as this users will not be able to do much, so if another monitor is available that works then users should switch to that.
Try another adaptor Many monitors support both VGA and DVI inputs, and there is potential for users to get things working by using another connection type. Additionally, while it may be a long shot, users might also try chaining together various adaptors. For instance, users might try going from displayport to DVI, and then using a DVI to VGA adaptor as the next connection, to see if that somehow sends a proper signal to the monitor.

Can I use my iMac 2009 as an external monitor for a MacBook Pro

I will soon be getting a new MacBook Pro with Retina display. It has an HDMI port.
My current iMac 21.5" late 2009 model seems to have a port with what looks like a little monitor symbol, next to the firewire port. And the specs say:
Graphics and video support
NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory3
ATI Radeon HD 4670 graphics processor with 256MB of GDDR3 memory
Built-in iSight camera
Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI (adapters sold separately).
Support for extended desktop and video mirroring modes
Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display
Does this mean that port is just for video output to an external monitor? Or is is possible to also do video in?
On the one hand it feels like a waste to use a perfectly good iMac as a monitor. But the MacBook Pro actually has better specs, and so I was wondering if it is possible anyway.
Thanks,
doug

Thanks for your reply. After reading the article though, I'm still not really sure what the answer is. For example, you mention something that can be done, with some hurdles to go through, for 27" iMacs. Mine is a 21.5" iMac, but seems to have the same port you mentioned in the article. Or maybe it isn't. Anyway, I'm still not sure if it is possible after reading that. Interesting information though.
doug

External monitor for Retina Macbook Pro

Hello,i want to buy an external monitor for my late 2013 rMBP.I tried two models (Dell U2414H and LG 23MPQ65-P),none of them worked perfectly.On both monitors colors were washed, without contrast, the font was blurry.So i decided to return the monitors and also I sent the laptop in service for several diagnoses to see if there's something wrong with my Macbook.
I see that there are many models of external monitors that do not work correctly with rMBP.
I want an 23-27", FullHD, IPS monitor that would cost around 400$.
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Thanks.

Jenn.Y wrote:
So which input ports are best to use? I know there's ones like HDMI and DVI, so which is better to use?
Modern monitors will likely have HDMI, DVI, and/or Display Port inputs. If you use HDMI then you will not need an adapter since your computer will have a HDMI port out. You will just need a HDMI cable. If you use DVI you will need a mini display port to DVI adapter and a DVI cable. Dual Link DVI is best but you will need a mini display port to Dual Link DVI adapter and a Dual Link DVI cable. If your monitor has a Display Port input you could use that. vga will produce bad results compared to all the digital ports.
Your selection depends on the monitor you get. To get the best display resolution use what provides the monitor with video at the monitor's native resolution.
Use Google to compare the specifications of the different ports https://www.google.com/search?q=display+port+comparison+dvi+hdmi+dual+link

How to setup dual external monitors on a MacBook Pro 15" A1398?

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