FCPX with triple monitors

Good day everyone. I've been searching for this answer but have not found one yet. I have a MACbook pro with two external monitors connected via HDMI and display port. Now when using FCPX I use the menu feature of sending events or viewer to second display. 85% of the times it sends it to the MacBook screen and the other 15% to the third screen. Is there any way of manually moving these screens around or telling it which monitors to use?
Any assistance greatly appreciated.

Similar Messages

T420 - Triple Monitors/Enable Optimus?

I have a T420, and am trying to run 3 monitors (2 external + the laptop display). I am have hooked up one monitor to the VGA and another to the display port on my docking station, and am able to run 2 monitors in any combination. However it won't let me do 3.
According to what I read here http://forums.lenovo.com/t5/Options-Accessories/Mini-Dock-Plus-Series-3-with-Triple-Monitors/td-p/57..., I should make sure Optimus is enabled. How exactly do I do this? I saw one note regarding the bios, but I didn't see the setting there that referenced Optimus.
Thanks!

exlim wrote:
I have a T420, and am trying to run 3 monitors (2 external + the laptop display). I am have hooked up one monitor to the VGA and another to the display port on my docking station, and am able to run 2 monitors in any combination. However it won't let me do 3.
According to what I read here http://forums.lenovo.com/t5/Options-Accessories/Mini-Dock-Plus-Series-3-with-Triple-Monitors/td-p/57..., I should make sure Optimus is enabled. How exactly do I do this? I saw one note regarding the bios, but I didn't see the setting there that referenced Optimus.
Thanks!
Which model T420 do you have?

Triple Monitor on T500 with RC and beta drivers...

Hello all I was running a beta driver from the beta Lenovo website and was able to run triple monitors.
Now with the RTM I cannot...
I was hoping that someone might have the old version of the beta drivers that Lenovo had on the beta site last year aroung May/June...
This was running without any extra hardware, it allowed windows to "see" both display drivers and allow them to be used.
If someone want I can send you a pic as proof, but could you please send me the old drivers for the "switchable graphics" ( I think that was the thing.)
This is a laptop T500 w the ATI 3650 HD and the intel express graphics card built in.
Thanks in advance.

What display are you using? Are you using a direct HDMI connection or are you using an adapter?

Triple monitor: Sapphire HD5670 512MB (*non* eyefinity version)

Those reading will know that, in order to have up to 3 displays showing content in a single graphics card, if it's an AMD card then you need a certain feature known as EyeFinity.
In particular, I am talking about tihs card:
http://www.google.co.uk/products/catalo … CDAQ8wIwAQ
You will notice in the picture that this one has DP, but there is another version that has VGA port in its place. I courd not for the life of me find it again, but at the time of buying the concern was CRT usage, so a VGA port was important. I did not know about EyeFinity at the time.
This guide is for people whe made mistakes like this.
This is typically the case. With my card in particular, you cannot get triple monitor in Windows, because the drivers prevent it (it is possible in Linux).
I said prevent.
If a card has 3 video outputs, each with their own RAMDAC (or none, if its digital-only), then why can you not use all 3 at the same time?
Typically in such a setup, if it does not have EyeFinity, then the connectors are usually:
VGA, DVI, HDMI (my card)
or
DVI, DVI, VGA (other cards)
or
DVI DVI, HDMI
or
HDMI, HDMI, DVI
In other words, all ef these types of card without support for EyeFinity, do not have:
DisplayPort connector
This is a rather crude way of getting it to work, but any solution is a selution still.
Well, here is a simple way I get triple monitor on my card that does not support EyeFinity:
VGA lcd in the VGA
DVI lcd in the DVI
DVI lcd in the HDMI (using HDMI-DVI adapter)
The HDMI is disconnected via a coupler, before I boot into Linux. I have a script with these commands:
xrandr --auto --output VGA-0 --mode 1280x1024
xrandr --auto --output DVI-0 --mode 1280x1024 --right-of VGA-0
xrandr --auto --output HDMI-0 --mode 1280x1024 --right-of DVI-0
(run it as a bash script)
With the HDMI (via HDMI-DVI, then a DVI coupler, then DVI to DVI going to the monitor) disconnected at the coupler, I run this script.
Of course, this script sets triple monitor, but right now only the DVI and VGA are hooked up.
Once it has done, I have dual monitor.
Then, connect at the coupler (or "gender changer") on the HDMI output. Now all 3 displays are connected, but you still have dual monitor.
Run the above commands again, and you will see triple monitor.
Now that you have solved the problem of getting tri-monitor in X, if you look at your TTYs you will notice that only one of the screens is showing. In X (usually terminal 7 or 8), simply disconnect the HDMI at the coupler for a few seconds, then reconnect it.
Now you to your TTY (Ctrl-Alt-F{1-6}), and it will show text on all 3 screens (albeit duplicated).
Thoughts,
I am not sure as to why this is possible to do. I see it as "tricking" the other incapable hardware into outputting on 3 displays, but it seems penfectly functional.
My guess is that this actually is an EyeFinity card, in the sense that it is the same base an which other cards (with DP, and thus, EyeFinity) are built, but that this particular card can be used in the same way, to get triple monitor.
Either that, or this is a "bug" in X11/XrandR (if it is a bug, please do not fix it, I like my triple monitors, I call it a feature).
I know that this certainly works in Xubuntu too, I tried it on a Live CD.
I tried removing the graphics card and trying this on the intergrated graphics (HD 4290/4250 I think), which also has the same 3 outputs, but the hardwas itself actually enforces a maximum of 2 monitors. If you have DVI and HDMI hooked up, it defaults to HDMI, but masquerades as DVI (where the drivers are concerned). You could use this hack, but then it would still not work because the hardware itself, not the driver softawre, is enforcing it.
The board is: ASUS M4a89GTD PRO
Last edited by NightCrawler03X (2012-01-17 17:45:59)

Hello,
i get the same messages without any problems for my intel card.
You can read more about it in this thread:
http://forums.gentoo.org/viewtopic-t-85 … ec66f93bf2
There are a fair amount of people who have posted their /proc/mtrr there, you can compare yours to them.
In the end they come to the conclusion, that uncachable entries are not a problem, for the most systems.
However uncachable regions of 1024MB seem to be too large.
On my mtrr the biggest uncachable entry is 64MB.
So you might get improvement from solving this.

Need Xorg config file for dual graphics cards, triple monitors

Hey guys, I'm having a bit of trouble getting triple monitors working on my system. The two plugged into the graphics card (radeon x300) work fine, but the one plugged into onboard graphics (geforce 6150SE) refuses to appear in xrandr. I figure I need to make a /etc/X11/xorg.conf.d/10-monitor.conf file but I'm confused about how to do it with separate cards. I find the wiki instructions that I can find confusing, as I've never had to deal with xorg files before (has always autoconfigured for me no problems).
Relevant code:
[greg@spacebar ~]$ lspci | grep VGA
00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
02:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)]
[greg@spacebar ~]$ xrandr
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 4096 x 4096
VGA-0 connected 1280x1024+1680+0 (normal left inverted right x axis y axis) 338mm x 270mm
1280x1024 60.0*+ 75.0
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 430mm x 270mm
1680x1050 59.9*+
1280x1024 75.0 60.0
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
S-video disconnected (normal left inverted right x axis y axis)
[greg@spacebar ~]$ pacman -Q | grep xf86-video
xf86-video-ati 6.14.3-1
xf86-video-nouveau 0.0.16_git20120106-1
xf86-video-vesa 2.3.0-7
[greg@spacebar ~]$ cat /etc/mkinitcpio.conf | grep MODULES=
MODULES="radeon nouveau"
I just can't seem to understand how to write the 10-monitor.conf file. I was wondering if anyone could give me a hand?
Also, the third monitor to be connected via onboard VGA is also 1280x1024 and will be left of the other two.

Depends on the motherboard. This one allows you to enable the onboard graphics only when no external card is found, or always enable. The PCI-E card initialises first, if that helps.
EDIT: Also I can confirm that it can run both cards (all three monitors) at the same time by switching to initialise the onboard card first, however that makes some weird stuff happen so I switched it back. And also the nouveau driver is shown in lsmod, and gets detected in the boot message logs.
Last edited by MisterAnderson (2012-01-26 16:56:58)

T410 triple monitor capability??

Hi all,
I currently use my T410 (w/ NVS3100MS optimus tech) with a LCD via DisplayPort.
I have another monitor at home with RGB connector.
I've tried connecting 2 external monitors to have a triple monitor but it did not work.
I went through the web and looks like for any T410 model, to make a triple monitor i have to have a mini dock.
Is that the only option??
Hope anyone knows about this issue. Thanks a lot

If you had the Tx20 series you would be able to do it without a dock.

MacPro3,1 triple monitor setup

Hi there!
I'm looking to expand my Apple 30" monitor setup with two (very cheap but highly acclaimed) Dell UltraSharp™ U2311H monitors. However, I'm unsure if I do or do not need an additional video card and if so, which one. I have an NVIDIA GeForce 8800 GT with (I think) two DVI-I Dual Link ports. I've read that there are DVI-splitters, but I have been unable to find any conclusive information.
Does anyone know how I can do this?
Friendly greetings, D, Amsterdam.

Hi Grant!
Thanks for your help earlier ;-)
I hope you might be able to shed some light on a little problem I have with my triple monitor setup. I bought the following items:
Two Dell Professional P2411H 61cm (24") LED monitors.
Two MiniDisplayPort to DVI adapters.
I've took your advice on the card and also got one ATI RADEON HD 5770 1GB-ZML card.
The monitors, in combination with the adapters and the card ... it all works, but there's one limitation I believe shouldn't be there.
The problem is this: either the hardware or software is only allowing me to connect two displays in total. If I connect all three displays, only the Dell monitors are able to connect. If I disconnect one Dell monitor, the Apple 30" display goes live. So, whatever in whatever combination or order I try to connect the displays, only two screens are connecting simultaneously.
Do you, or does someone else know how to fix this? Would be great to fix this soon and become the pixonaut of my own digitale cockpit!

Triple Monitor Display for Laptops

Im looking for a triple monitor bracket like the one MSI uses in their advertisement for the 4 monitor Matrix display.. Laptop in Middle, monitor on left and right, and one up high. Any help, links, advice would be great.
Thanks,
Brett
MSI GT70-20D Stock the one with the 24gb of ram.. Etc etc

that will be more then likely referring to a Falcon Tango Monitor Matrix (The 1 over 3 Monitor Matrix) (Quad monitor stand) without the central monitor attached!
you can only get them from the manufacturer as they are custom made stands and run around $440US http://www.tradingcomputers.com/TCarrays.html
MSI do not make stands like that they will just have been illustrating it like that for Marketing just to show how it could be used

You cannot shadow a session with multiple monitors enabled in Windows Server 2008 R2

Searching through the forums (and according to KB2484290) it appears that there is no solution to this problem. We are rolling out thin clients that are using dual monitors exclusively and we were very surprised to find out that we couldn't shadow
sessions with dual monitors (which to us means that we can't shadow ANY sessions). This now completely changes our approach to managing these devices.
We are running Windows Server 2008 R2 SP1 with Remote Desktop Services installed. The thin clients are running Windows Embedded Standard 7 with the latest updates / RDP client. All steps have been followed to ensure that the apropriate settings and
permissions have been set up to allow access into the session.
We tested by unchecking the RDP setting “use all my monitors for the remote session”, with that setting disabled shadowing worked
Questions:
1. KB2484290 is from Dec 2010 - It's now April 2012, is there a workaround / hotfix for this issue that will allow us to shadow sessions using the native Microsoft tools?
2. Are there any recommended alternatives (software)? Free/Paid - doesn't matter we just need something that will work. I'm sure there are a few options out there but I am looking for suggestions for what people have used in the past that worked
best for them to help us narrow down the choices.

Hi,
In my experience, so far, the workaround is Remote Assistance, Remote Assistance supports multiple monitors, and is the presently recommended solution if you need this functionality. Remote Assistance is a Windows Server Feature that must be explicitly installed
on Windows Server 2008 R2; it is already installed with the client versions of the operating system.
More information:
Remote Assistance Overview
http://technet.microsoft.com/en-us/library/cc753881.aspx
Remote Assistance and Resulting Internet Communication in Windows Server 2008
http://technet.microsoft.com/en-us/library/cc770456(v=ws.10).aspx
As far as I know, there are some third-party tools can be used as the solution, such as Teamviewer, ISL Online, etc.
Please Note: The third-party products discussed here are manufactured by companies that are independent of Microsoft. We make no warranty, implied or otherwise, regarding
these products' performance or reliability.
Regards,
Dollar Wang
Forum Support
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here.
Technology changes life……

Please help with strange monitor/Lightroom 4 interaction problem

I bought a Dell Ultrasharp U3011 yesterday, and I'm now facing a very strange problem. It's sort of related to the common discussed issue of Lightroom's color management, but there is a twist here. I'll explain.
The monitor I had been using (and still have) was a Samsung SyncMaster 244T. I had no problems at all with it.
With the U3011, I've run into this problem:
-When I view files in Lightroom 4, the colors are muted and contrast low. The same files seen in Xnview, ACDSee Pro (with the color management turned off), Digital Photo Professional (colorspace set to sRGB), are much more vivid. In Photoshop, if I use the default color setting, it looks muted like Lightroom (I'm guessing because Adobe products have default color profile set to ProPhoto RGB), but if I set the color profile to the monitor's profile, it becomes vivid and matches the other software I mentioned. If I use any other profile such as sRGB IEC81966-2.1, ProPhoto RGB, Adobe RGB, etc, it doesn't match the other software I mentioned. This is strange because the other ones match each other because they are set to sRGB, but in Photoshop, even if I set the color profile to sRGB, it still doesn't match.
-In Lightroom 4, even if I use Soft Proofing, nothing changes. It's as if Soft Proofing is broken--it doesn't do anything, no matter what color profile I choose.
-Now, here's the twist. I didn't have any of these problems when I use the 244T. This leads me to assume that the problem is how the U3011 is interacting with Lightroom. I did a quick comparison of opening up the same image on both monitors in ACDSee Pro, and they looked identical. (At this point, I had the U3011's preset set to sRGB. This is the only preset that makes the U3011 look identical to the 244T).
Next, I did an experiment, and I was very surprised by what happened. This is what I did:
With both monitors as a dual display setup, I turned on Before/After comparison in Lightroom (made sure both version had the same setting and look identical by copying the After's setting to Before). I then moved Lightroom's window so that one photo is seen on the U3011, and the other shows up on the 244T. And OMIGOD, they looked different! Why is this happening? I've already established that the same image looks identical on both monitors when viewed with ACDSee Pro, but in Lightroom, they looked different on each monitor.
And then things got even more weird. When I dragged the Lightroom window fully to one monitor or the other, Lightroom actually started changing the colors right before my eyes as it responded to which monitor was displaying which photo! Lightroom was somehow interacting with the monitor in real-time. So if the Before looked muted on U3011 and the After looked vivid on the 244T, when I drag the whole window into 244T, the muted Before will stay muted for about a second or so, and then it'll suddenly change and become identical to After. And when I did the reverse (drag the window into U3011), the reverse also happened--the vivid After will stay vivid on U3011 for about a second or so, and then it would suddenly change and become muted. Lightroom was identifying each monitor's color profile setting and changing the images according to which monitor was doing the displaying, and when the images were split between the two monitors, Lightroom was slitting them into two different settings to match whichever monitor is displaying which side.
So what the hell does that all mean, and what can I do to get Lightroom to display the photos so that they look the same as on all the other software I mentioned (so I don't have to play the guessing game of editing the images, export them out to other software to check how they turned out). Also, remember that I didn't have this problem with the 244T--Lightroom displayed the photos the same way as the other software I mentioned. The problem right now is that the U3011 is somehow causing Lightroom to display the photos differently, and no color profile presets in the OSD control can make them match.
I need to solve this problem, or else my last resort would be to return the U3011 and try another brand/model and see if that helps.
Any ideas?

Yes, that's basically sensible advice you got there (but I was more succinct ).
An important point that was mentioned over there is that you must not confuse document/source profile with monitor profile. They are both links in the color management chain, but they serve different purposes. The document profile defines the colors in a standard color space. The monitor profile describes the monitor's own native color space - its response to the RGB numbers it's fed. So one is translated into the other, by the application on the fly, through a normal profile conversion, and that way the colors appear on-screen as intended.
If those two profiles/color spaces are roughly similar, as they would be in the case of an sRGB document displayed on a standard gamut display - then you can get by without color management. It won't look too far off. But a wide gamut monitor changes the rules, because its native color space is not similar to sRGB, it's much closer to Adobe RGB.
Anyway, this is what color management is about. Any profile can be translated into any other. So in this context it doesn't really matter what color space the document is in - as long as you have a good monitor profile it will display correctly (within practical limitations). Lightroom is a sort of special case because its internal working color space is not one of the standard ones, instead it's a modified ProPhoto space with linear gamma. But the basic principle is exactly the same: source profile > monitor profile.
Just to go a little more in-depth while I'm at it: When you calibrate a display you actually do two separate things. You first calibrate it to a more or less standardized response. But that's just a linear one-dimensional correction. It does nothing about how color is actually reproduced, how red is red for instance. The calibration is global and affects everything system-wide because it's read into the video card or monitor hardware.
Then, once calibrated, a monitor profile is made. This is a full, complete and accurate description of the monitor's behavior, in three-dimensional color space. The precision level is much higher. This profile is used, by color managed applications like Lightroom and Photoshop, to display the image.
Other applications that are not color managed will simply ignore this profile, and send the RGB numbers straight through to the display, unmodified. With a standard gamut monitor (and an sRGB document) the difference won't be too dramatic and you may not notice it unless you look closely. But a wide gamut monitor will make the difference jump out immediately.

Mac Mini Won't Boot with VGA Monitor Connected

I have a new Mac Mini connected to an older VGA monitor using the Apple brand VGA adapter. The mini is fully up to date and runs perfectly when booted. However, if I reboot the mini with the VGA monitor connected, it fails to boot. I just hear the faint chime sound every other second. There is no output to the monitor and the only way I can get it to boot is to disconnect the monitor and then power cycle the mini. I can reconnect the monitor just seconds after powering back on and it finishes booting properly.
Anyone else experience this? It is very frustrating. I've also tested with an HDMI connected monitor (without the VGA adapter) and it boots just fine and the display works properly.
Thanks!

Okay, I'm back with good news: I have found two remedies for the problem which will hopefully solve it for you as well.
Given that the issue only occurs when certain monitors are connected, I concluded that the root of it must be a bug in the Mac's firmware related to DDC (Display Data Channel) handling, and that the most promising way to address it should be to just disable the DDC.
Workaround #1: If your monitor has BNC connectors, use a VGA to BNC cable.
In this configuration the DDC pins are not connected to the monitor at all. This did indeed fix the problem - my Mac mini booted without a problem with the monitor connected. However, I was not completely satisfied with this solution, because VGA to BNC cables are usually quite heavy and inflexible, and do no go together well with Apple's MDP to VGA adapter and the Mini Displayport/Thunderbolt port which has no locking mechanism.
Workaround #2: Remove pin 12 of the VGA plug.
Pin 12 of the VGA plug connects the serial data line of the DDC. Pulling out this pin with a pair of needle nose pliers will effectively disable DDC. I hesitated to do this to my cable (a direct MDP to VGA cable which eliminates the need for a separate adapter dangling from the Mac) and therefore bought a tiny VGA male to female adapter (also called port saver, e.g. Delock 65250) to perform the surgery on that. This has done the trick and my Mac mini has started up fine ever since.
Of course, without DDC the Mac won't know the model name and capabilities of the attached monitor and thus offer some resolution and frequency settings which the monitor may not support, but that's a small drawback compared to having to pull out the monitor cable everytime you turn on or restart your Mac.

Mac mini will not boot up with two monitors attached

New Mac mini running OS 10.10.1. I have a LCD monitor attached to the HDMI port, and a Cintiq 21 UX LCD monitor attached to a thunderbolt port.
It boots up properly with only the first LCD monitor attached to the HDMI port.
When I leave both monitors connected before starting the computer I get no chime, and a black screen. The light on the front of the Mac mini comes on, but nothing else happens. I have to turn off the Mac mini, unplug the second monitor and then reboot. It always starts up perfectly then. After starting the computer, I plug the second monitor in, and everything is fine.
It’s kind of a pain in the neck to constantly plug and unplug the second monitor from the back of the Mac mini. Is there anything I’m overlooking?

Thank you, Illaass! Resetting the SMC solved the problem! I tried that first because I would prefer not to lose any preferences, and also because it was the easiest to try. You must be a genius in addition to being such a good egg!
(This is the number of smiles I smiled after my Mac mini booted properly with both monitors connected.)

Why the Slowdown with External Monitor?

I have a new Retina iMac with a 4 Gig Core i7 processor, 32 Gigs of RAM and 4 Gigs of VRAM and the AMD Radeon R9 M295X chipset. My 3 TB hard drive is well under half full. Everything works great . . . until I attach an external monitor.
I've attached a Dell 2815Q via one of the thunderbolt ports on my iMac into the Dell's DisplayPort. The connection is with a cable, supplied with the monitor.
All computer functions are so painfully slow, it becomes barely usable. Finder functions--moving windows, mouse operations are like molasses. Scrolling is so bad that reaction time is near 5 seconds and then it continues to scroll after the physical mouse gestures cease.
Why is this so sluggish? I would have thought with the processing power and video capabilities of my new iMac that this problem would not occur. When I disconnect the Dell, of course, everything is speedy again.
Is there anything I can do to fix this? The Dell provides beautiful images, but it is virtually worthless with the slowdown in speed.

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

Yosemite: Turning off Macbook Pro screen (lid open) with external monitor connected

Here we go again, this worked pre-Yosemite. Now it seems this trick no longer works. After following these steps again the screen on my Macbook Pro now turns on after logging in and opening the clam shell.
Anyone figure out/know a way to turn off the screen on the Macbook Pro with external monitors plugged in? (yes, closing the clam shell–but I'm referring to keeping the clam shell open with the display turned off)
http://gizmodo.com/5938452/a-trick-to-make-using-an-external-monitor-with-your-m acbook-way-better
To execute in Terminal:
sudo nvram boot-args="iog=0x0"
To undo in Terminal:
sudo nvram -d boot-args
Once you type it into terminal I believe you need to enter your password. I then restart my machine. Now the TRICK is to either restart your machine with the lid already closed (hit restart then slam the lid!) OR turn the machine on for the first time (then quickly slam the lid!) once you are past the login screen you can open the lid.

Has anyone experimented with tip 2 (active corners)? Perhaps it still works.
http://www.cultofmac.com/176329/turn-off-internal-lcd-display-of-your-macbook-ai r-os-x-tips/
Κοσμά τι λες; Τα έχεις μπερδέψει. Άλλο συζητάμε εδώ. Το ότι δεν μπορείς πια να δουλεύεις μόνο με την εξωτερική οθόνη (να έχεις σβηστή την ενσωματωμένη οθόνη όταν έχεις συνδεμένη εξωτερική).

[SOLVED] Help with dual monitors (second monitor won't wake up)

Hi. I'm trying to set up dual monitors, but I can't seem to get it to work.
I've got an ASUS P8H67-M EVO motherboard, and I'm using the xf86-video-intel driver. I'm using one VGA and one HDMI.
xrandr gives this
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767
VGA1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 60.0*+ 74.9
1600x1000 60.0
1280x1024 75.0 72.0 60.0
1440x900 75.0 59.9
1152x864 75.0
1024x768 75.1 70.1 60.0
800x600 72.2 75.0 60.3
640x480 72.8 75.0 66.7 60.0
720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.0*+ 50.0 60.0
1920x1080i 50.0 60.1
1680x1050 59.9
1600x900 60.0
1280x1024 75.0 60.0
1280x960 60.0
1152x864 75.0
1280x720 50.0 60.0
1152x720 60.0
1440x576i 50.1
1024x768 75.1 60.0
1440x480i 60.1
832x624 74.6
800x600 75.0 60.3
720x576 50.0
720x480 59.9
640x480 75.0 60.0 59.9
720x400 70.1
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
So it looks to me like both displays are being detected. The geometry looks such that one display is on top of the other, but I can change that using an xorg.conf.d config file (e.g. https://wiki.archlinux.org/index.php/Mu … xorg.conf). I also tried using arandr.
The real problem is that the display on HDMI3 just isn't "waking up". The power is on, but it just sits there in sleep mode.
Any help would be great. I might just be missing something simple. Thanks.
Edit: I just saw a short list of window managers near the bottom of the Arch Multihead page (https://wiki.archlinux.org/index.php/Mu … _xorg.conf). I don't see openbox on that list. Does that mean I'm SOL if I want to use openbox with multiple monitors? This page seems to imply that it should work fine with openbox http://magnatecha.com/dual-monitors-wit … nd-xrandr/.
Last edited by Pacopag (2013-08-19 18:58:36)

I use XFCE, and when I boot my computer I just run:
xrandr --output DVI-I-1 --auto --output DVI-I-2 --auto --left-of DVI-I-1
I'm assuming if you modify the names appropriately that it'll work too. I have had issues before trying to run dual monitors without taking both outputs off of a single video card (which is what I'm doing now). For example, I had a graphics card with one (VGA) output and a VGA output on my motherboard. But, connecting the graphics card disabled the on-board VGA. So it is possible (I'm not an expert here) that two displays coming off the motherboard may not work for hardware reasons.

FCPX with triple monitors

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