Dual Monitor versus External Monitor

Hi, I have a question that leads to another and I should have learned this along time ago, but the term Dual Monitor and External Monitor (such as editing in FCP and viewing work on a Third monitor, for example) are two different concepts, correct?
Having gotten use to working on my 23" Apple display, I no longer use a dual monitor setup, but I would like to view product through an external monitor. I just got an HDTV with HDMI connections. With a DVI to HDMI adaptor, theoretically I should be able to hook up my G5 to the the HD monitor via a HDMI cable on the second port behind my G5. Can I use the second port for external monitoring?
Thanks,
Gary

So you want to be able to direct FCP output to a second HDTV monitor full screen? I don't know the answer to that question but you might consider posting it to the FCP section of the Apple Forums where I am sure you will get a quick and concise answer.

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Dual Monitor with iMac?

I have a iMac from early 2009 and wanted to use it as an external monitor for my laptop which has Windows 8.1 as it's OS. So my question is without using any software such as Synergy, Air Display, etc is there anyway I can make the iMac an external monitor for my laptop. I also have boot camp set up with Windows 7 as it's OS and I'm not sure if that's any help or not making this dual monitor setup work.
I was going to buy a mini displayport to VGA adapter (iMac (Early 2009) - Technical Specifications says: "Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI via adapter," so I am assuming I cannot use HDMI) and use that to connect my laptop and the iMac together. And so I was wondering if that'll work out if I'm on windows partition in boot camp or not.
iMac Specs: iMac (Early 2009) - Technical Specifications
Laptop Specs: http://www.asus.com/Notebooks_Ultrabooks/N56VM/
Any help would be appreciated, thanks.

Can't do it as far as I know. The mini display port on your Mac is for output only. You need a late 2009 or later iMac to do Target Display Mode Target Display Mode: Frequently Asked Questions (FAQ)

Dual monitor, and other questions....

I'm sorry for these questions if they've already been discussed... with all the back lash, I'm having a hard time wading through all the comments.
I have a macbookpro.
I use an external 24" monitor along with my 15" laptop for editing. My 15" is used for my canvas.
1: Can I use this set up with the new FCP X?
I use PPro CS5 currently and I like the way it handles media and saving my projects.
2: How does FCP X handle media?
2.a: Does it handle media like iPhoto / Aperture?
2.b: Are projects saved like in iMovie?
I keep all my media on external hard drives.
3: Will this be a problem with FCP X?
Thank you in advance for your help.
Tony

On my dual monitor Mac pro, the main monitor has the timeline and canvas. The second monitor has the events I think, basically the bin. You'd probably want to make your 24 the main monitor
FCP X handles media and projects a lot like iMovie. iTunes and iPhoto are accessed just like iMovie. You can save media to whatever drive you want although you can't really drill down to a particular location
Hope this helps

Systemd as user, dual monitor, awesome, popups (long desc inside)?

Okay, this is quite difficult to describe, so please bear with me.
I run systemd as user and awesomewm on a laptop which is normally plugged in to an external monitor for a dual screen. 64-bit Arch, fully updated, running [testing]
I've got my own homebrew script which basically just runs the appropriate xrandr command to enable all the current connected monitors (since AFAIK we still can't make that happen automatically at plugin/out of the VGA cable).
Additionally (may or may not be related), I run unagi for compositing and animated wallpapers using xscreensaver and xwinwrap. unagi is started as a systemd user service (as is awesome itself), as are the animated wallpapers (basically a homebrew service file calling a bash script). Also, I'm using infinality-bundle from bohoomil. None of this (I think) is important.
Now, not sure when this started happening, because I rarely do this, but if I start my laptop up with the external monitor plugged in, it mirrors the display at a fairly low res (I'm assuming 1024x768) which I don't bother about, because I just hit the keybinding for the above-mentioned script and get my full res dual monitor setup.
However, once this happens, any app which pops up, which in my case is synapse (app launcher), gmrun (launcher, run via xbindkeys) and keypassx (when requesting passwords) will always pop up on the primary screen. If launched from the primary screen, it'll turn up right in the center as expected. If launched from the second screen (on the right), it'll turn up on the primary screen, but centered in position w.r.t the second screen (different resolution) and to the right-most edge of the primary screen.
If I start the laptop without an external monitor and add it later on (plug in and then run xrandr) everything works as expected, popups are centered properly.
If I start awesome using gdm (and external monitor plugged in) it doesn't show the mirrored displays and everything works as expected.
Because of the last two statements, I doubt the awesomewm configuration is the problem, but I can't imagine how to proceed debugging this. Any suggestions?
EDIT: And as usual, immediately after worrying at this for a day and then posting this thread, I found something that 'works'. Restarting awesome in this case fixes it, and it remains fixed thereafter (till the next restart).
This raises another question though, I remember awesome would automatically restart with xrandr screen changes before, why isn't it doing so now? Or is it doing so too early perhaps?
Last edited by ngoonee (2013-06-27 07:13:29)

o_caino wrote:
Setting mpd as a systemd user service is very simple. This is what I did.
In ~/.config/systemd/user/mpd.service
[Unit]
Description=Music Player Daemon
After=network.target sound.target
[Service]
ExecStart=/usr/bin/mpd --no-daemon
ExecStop=/usr/bin/mpd --kill
[Install]
WantedBy=default.target
To enable
systemctl --user enable mpd
Done.
Well shit. I guess I didn't need to do all that other stuff. I only wish I'd known about this before wasting most of my day. Thank you very much, everything appears to be working flawlessly now.

Dual Monitors and Lr4

I am looking at switching from using Aperture and Photoshop, to Lightroom and Photoshop for my photography workflow. However during my free Lightroom trial, I have ran into a deal breaker with dual monitor support.
I use a Macbook pro w/ an external monitor for editing. In Photoshop and A3, I keep all my pallets, sliders, and thumbnails on the laptop screen, and display the full size image on the external display. I would like to do the same in Lightroom 4, however, there is one small problem.
When trying to achieve the same set up in Lightroom, I can view the image nicely on the external monitor, but I can't actually work on the external monitor. Example: If I decide a blemish needs touched up I can't use the spot removal tool on the large external display, but instead have to use it on the small laptop screen image. The same is true of the crop overlay and adjustment brushes. Also the fantastic option commands for mask overlay and sharpening, are not visible on the external display.
Please tell me there is someway to change this?
I strongly prefer LR4's sharpening and noise reduction, and feel I could reduce my reliance on CS6 for many images.
Thanks in advance,
Troy

My first encounter with Lightroom was similar to yours: Why the heck can't I move the panels where I want them? This is ridiculous...but after a while it grew on me.
There's no reason you can't have the main action on the large external monitor (as ssprengel says). But you have to get used to the idea right away that Lightroom is a single-screen application, and the second screen is just an extension used for an alternative view (grid/loupe/1:1). Don't fight it, it's just how it is.
Troy_Fagan wrote:
feel I could reduce my reliance on CS6 for many images.
That's absolutely right, that's what happened to me.

AMD/ATI driver problems on a Dell laptop with attached dual monitors

I have a Dell Precision M4800 laptop with a docking station for two additional monitors. I'm shooting for a "big desktop" setup, with my laptop display and the two external monitors forming one large multi-monitor X screen.
When deciding which video driver I'd need, I did the usual:
$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8800M Series]
Which is weird, because the M4800 isn't shipped with 8800M cards. Rather, it's shipped with the AMD FirePro M5100 Mobility Pro (see above link) (also, too many "Pros", AMD...).
I tried the open-source driver, but I couldn't get both my external monitors working in tandem, so I went with catalyst-test, since the non-beta version of the proprietary driver doesn't support the 3.13 kernel (or my alleged 8800M series card, for what it's worth).
My display setup using catalyst-test is still far from ideal. My dual (horizontally adjacent) monitors reset to cloned/mirrored desktops after every reboot, and my machine refuses to show three monitors (dual monitors + laptop display), even with the 2GB of dedicated RAM in my graphics card (see above M4800 link). There's other miscellaneous annoyances as well.
Using hardinfo, I see that my VGA driver thinks it only has 256MB of RAM... which doesn't align with the M4800 specs. Is there a way to change this value?
Just today, I found the catalyst-firepro driver, which I think might be the correct driver for my laptop, at least given the specs on the M4800 from the website.
There's also the option of not using my AMD card at all, and just using the Intel graphics on my laptop. (I had to disable hybrid graphics in my BIOS to get any AMD-specific drivers to work). I'd like to steer away from this, due to the performance loss, but I'd be willing to make the change if the pros outweighed the cons.
As I see it, I have a few options:
AMD/ATI open source driver: Can't seem to get two monitors working, much less three...
catalyst-test: Any two monitors will work together, but not three. Other annoyances.
catalyst-firepro: Have not tested yet.
Intel open-source driver with AMD card disabled: Have not tested yet.
Can anyone who has had similar issues and/or hardware offer a best course of action which has worked for them? I know we're supposed to avoid "opinion" questions, but I think this is grounded enough in the scientific method to merit some helpful responses.
Any help is appreciated.
Thanks!

clfarron4 wrote:
The last option to me is screaming catalyst-pxp at me, because that's one of the few options if you have integrated graphics and a discrete graphics card.
Let me get this straight: Can you disable the either or both of the Intel/AMD graphics in the BIOS settings? If so, but don't want to disable either, you might want to look at the hybrid graphics section of the wiki.
I know about powerXpress and I think I'd like to avoid it. My experience with hybrid graphics on other Linux distributions is that it's rather unstable or just plain unsupported. If someone can convince me otherwise, given their experience with hybrid graphics on Arch/Linux, I might reconsider.
I'm fairly certain I can enable either of my GPU's separately, but I'll have to check for sure next I reboot my PC.
The last option I mentioned because I thought the Intel drivers might be more robust than the AMD drivers, which have don't have a sterling reputation when it comes to supporting Linux (compared to nVidia anyways, who I know in the past have had good Linux support).

HP paviliion p7-1423W Dual Monitor

I have this HP pavilion product and wish to run dual monitor on it. It has two display ports DVI-I and DVI-D, it came out of the box with a DVI-I to VGA adapter, which I am using for my main screen, I recently bought a DVI-D to Analog VGA(i have a HP v17 which is analog) I've changed the only possible setting in my BIOS that I can find that deals with display was labeled something about VGA i enabled it and still my screen displays "No Input Signal", I've tried this DVI-D port with my main monitor and it does the same thing. I've looked in the Intel HD Graphics GUI the only screen showing up is my Dell(main) the only other option for display is "Intel WiDi" which i dont have a wifi display. Anyone have any insight on how I can get dual monitors working. According to the user manual and the reviews I've read about this product it's able to handle two monitors so I dont see why I cant get it working.

3 - DVI-D (digital only) 4 - DVI-I (digital and analog)
==========================================================
Looking at ports #3 and #4, notice that port #4 (DVI-I) has "cross" with four pins surrounding it while port #3 (DVI-D) doesn't have those four pins. Please see Wikipedia article entitled "Digital Visual Interface (DVI)" for more information on this subject. From the previously mentioned article;
"This is a passive DVI-to-VGA adapter. This adapter will NOT work with a DVI-D output. It requires a DVI-I or DVI-A output to get the analog signal to a VGA input (even if the adapter looks like a DVI-D). An expensive active converter would be required for a DVI-D output to VGA input."
Note that an expensive active converter may have video image quality issues, which could impair the value of this device versus the cost. Based on the specs, both of your monitors support VGA only. You have several options to resolve your issue;
1) Buy an active DVI-D to VGA converter (costly with possible poor image quality)
2) Buy a USB-to-video adapter such as an eVGA UV Plus+ UV39 (not good for gaming or high-bandwidth content video)
3) Purchase a new video card that supports your desired configure (may require replacing the power supply)
4) Purchase a new monitor that supports at least one DVI-D digital input (depending on size, may be expensive)
Please send KUDOs
Frank
{------------ Please click the "White Kudos" Thumbs Up to say THANKS for helping.
Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
This is a user supported forum. I am a volunteer and I don't work for HP.
HP 15t-j100 (on loan from HP)
HP 13 Split x2 (on loan from HP)
HP Slate8 Pro (on loan from HP)
HP a1632x - Windows 7, 4GB RAM, AMD Radeon HD 6450
HP p6130y - Windows 7, 8GB RAM, AMD Radeon HD 6450
HP p6320y - Windows 7, 8GB RAM, NVIDIA GT 240
HP p7-1026 - Windows 7, 6GB RAM, AMD Radeon HD 6450
HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

Dual Monitor Support No Longer Works

Hi,
I am using Lightroom 2.0 on a MacBook Pro with OS X 10.5.4
Dual monitor support use to work with my Samsung external monitor. But now whenever I try to turn on dual monitor function, lightroom crashes. I know the external monitor and connection is working properly because I am able to use all of my other programs with both monitors, but no longer lightroom's dual monitor function.
Any insight would be much appreciated.
Thanks

It was an extremely frustrating process trying to know if indeed this was the way to calibrate this monitor, and after spending so much time and research was all I could come up with. Did you notice the graphing results of both types of calibration? The red (I believe it was) of the RBG graph line was not lined up at all with the G and B thus the weird color on the monitor, and with the Easy mode, they were at least in line, more or less.

Win 8.1 not remembering dual monitor setup after reboot

Hello,
I am running Windows 8.1 64-bit Enterprise N with the following hardware:
HP ENVY TouchSmart 4-1245tu Sleekbook with Intel HD 4000 Graphics
Dell Monitor
HDMI Out from laptop to VBGA In on monitor (HDMI to VGA Convertor used to connect with second monitor).
I have setup multiple monitors and it works fine. However once I do a reboot on the laptop the machine, after reboot only laptop screen is detected and second monitor/external monitor not detected ( it is blank with the External monitor having its backlight on (so its not in standby) but nothing is being sent to it.)
It looks as if Windows 8.1 is not remembering the extend monitor setup after a reboot.
I am running the latest drivers from Intel for Windows 8.1 64 bit and Intel 4000 graphics:
Release Version: Production Version
Driver Version: 15.33.5.64.3316
Package: 209756
Intel(R) Graphics Driver: 10.18.10.3316
Intel(R) Display Audio Driver: 6.16.0.3123
Operating System(s):
Microsoft Windows* 8.1 64-bit
Release Date: October 04, 2013
Downloaded from intel site - https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23405&lang=eng
Any ideas?

I have the same problem with HP8300 Elite CMT
Dual monitor works fine after reinstalling the video drivers.
When I restart the PC the second monitor is not found and the drivers have to be reinstalled.
I have opened a support case
Case ID <4648891774>
Waiting for feedback - if the problem is resolved - I will post an update

Dual Monitors on Late 2011 17" MacBook Pro

Hello:
I wanted to do a dual monitor system for work; I have two 24" Apple Cinema Displays -- as you know they come equipped with a Mini-DVI I/O along with a mag-power, and USB 2.0 I/O. I found a Matrox DualHead2Go Digital ME [http://www.matrox.com/graphics/en/products/gxm/dh2go/digital_me/] as a possible solution, the issue I am having is that Apple has not made a DVI-D I/O on a Cinema Display since the 30" Display many years ago. The Matrox product is new, and touts that it is Apple friendly but I cannot (for the life of me) find a cable/converter to go: Mini-DVI (female) to DVI (male) to make this work. So, does anyone know if this cable exists, and if it does, where can I get it? Or, does anyone know if someone makes a product that will allow dual monitors (NOT stretched desktop) that will go Thunderbolt/Mini-Display Port to Mini-DVI so I can get true dual monitors on my MBP so I can run it in clamshell mode on my desktop?
Just as a FYI, I am NOT interested in going to a USB solution as the refresh rate and resolution would not be good enough to warrant consideration.
Thanks in advance for all of your expert help and opinions!
- M

The only way that you can use both a SSD in your drive bay and another hard drive is to install the hard drive in your optical bay. If you're willing to give up your optical drive, OWC sells kits to do just that.
Then you could use your external drives for data storage & backups.
Is this a workable option?
Clinton

Odd dual monitor behavior in Photoshop CC 2014 on Mavericks

I'm seeing some strange issues with a dual monitor setup (monitor 1 is MacBook Pro screen, monitor 2 is an external monitor) in Photoshop CC 2014. I have images open on both screens. If I use the eyedropper to try to pick a color from an inactive image window on one screen, it won't pick up the color unless I click on the image to make it the active image. I don't remember this behavior on dual monitors before.
I'm also seeing that if I switch from another application back to Photoshop and start painting or erasing, nothing happens in the active window. I have to re-switch applications and try again. Sometimes that works, other times it doesn't.
On another occasion, I was working on one monitor. When I returned to the main monitor and tried to access an item in the Edit menu, all of the menus were empty and white.
I can't identify if this is a Mac OS issue or an Adobe issue. I'm wondering if other people have been experiencing this behavior and if so, how to correct it.
Thanks.

Could be. I tried restarting, closing and reopening Photoshop. I just noticed this today, and I've been using CC 2014 since it came out. I'm using it on a relatively new iMac, but I don't think it has happened before, though I could be wrong. It's not the end of the world, but it is an annoyance.
Thanks.

T420 and dual monitors using eGPC?

Hello all,
I just purchased my first ThinkPad, a T420 (4180 62U). So far I really love this machine.
Unfortunately for me, I didn't realize that this model does not support dual external displays with the built-in graphics processor.
I was wondering if anyone has had success with using a external graphics card along with the dock so that they can have the dual external monitors and the laptop screen running.
If so, what hardware should I be looking at? I would welcome any advice or recommendations.
Thanks
Zim

Thanks for the quick reply!
I haven't actually tried the dock yet. I was going to order one, then I read that you had to have the Nvida Optimus graphics card to actually do a dual monitor + laptop screen set-up which my ThinkPad does not have.
It's my understanding that the intel graphics HD 3000 allows another monitor, it just doesn't support tow external monitors.
Am I mistaken about this?
If so, then I'll be real happy, because using 3 screens will be a great help when using Cisco Packet Tracer simulator, reading instructions and taking notes.
Zim

Thinkpad T420, Integrated Graphics, Dual Monitors

Warning: this isn't really a problem thread. I've looked and looked but can't find a definitive answer for my question.
I'm seriously considering a Thinkpad T420 for a new work laptop. I've heard great things from many people, but the most important question has yet to be answered: if I get one with integrated graphics (Intel HD 3000), will dual monitors work with VGA and DisplayPort with a DVI adapter? It's crucial that I'm able to use two external monitors simultaneously and I'm sick of using TwinView because I can't rotate a monitor. Can anyone confirm that this works?

according to tabook.pdf
Intel HD Graphics 3000 in processor,
external analog monitor support via VGA DB-15 connector and
digital monitor support via DisplayPort (supports single-link DVI-D via cable 45J7915);
supports dual independent display;
Maximum external resolution: 2560x1600 (DisplayPort)@60Hz;
2048x1536 (VGA)@75Hz; 1920x1200@60Hz (single-link DVI-D via cable 45J7915)
So, it looks like the hardware is certainly capable of it.

Dual monitors with macbook closed

i am running dual monitors with Macbook Pro and would like for my Macbook to be closed. How do I change that setting?

How do I change that to two separate extended screens.
I don't believe you can. Check with Matrox, but my understanding is that the external monitors running through the Matrox box will always function as a single extended desktop in two parts.
If you do check with Matrox about this, please post back with your findings — I'll be interested to know, whether I'm right or not.

Dual Monitors w/ Macbook Pro

I have a MacBook Pro and would like to setup Dual Monitors. I have done a lot of research and really need an answer for this. I understand there are numerous ways to setup two external monitors, but I am looking for the solution that allows the computer to recognize both monitors as separate monitors. I am connecting to a 42" Panasonic Viera and a 23" Samsung SyncMaster. The TV is HDMI and the Samsung is DVI. I have looked at the Matrox Dualhead2go and cannot find if it is able to send separate signals, instead of turning both monitors into one huge monitor. Are there any solutions that anyone knows of? I know I can use a USB video card, but they are graphically inferior and that is not acceptable for my line of work (music production, sound design, film mixing). Any ideas?

Yu can use a Magma ExpressBox
<http://www.magma.com/products/pciexpress/expressbox1/index.html>
with a NVIDIA GeForce 7300 GT
<http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSLID?mco=C2 69DC41&nplm=MA567Z/A>
Another option is a Matrox Graphics eXpansion Module
<http://www.matrox.com/graphics/en/corpo/products/home.php>
They have resolution limits, though.
<http://www.matrox.com/graphics/en/gxm/support/dh2go/digital/compatibility.php#m ac>

Dual Monitor versus External Monitor

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