IMac Dual-display colour profiling on second LG monitor

Hey guys,
I just purchased a second screen for my imac to use dual display, im a graphic designer and really need the space. What is the easiest and best way of mirroring the colour setting of the iMac to my second screen without the use of 3rd party colour calibrating software?

Hi macboydesign
Welcome to Apple Discussions
Lots of practice!
Not included in the current lists there were a dozen other DYI profiles between the iMac and LG that were so bad, I had to delete them.
The following article is dated, but has some great tips and info:
http://www.computer-darkroom.com/colorsync-display/colorsync_1.htm
Oh' almost forgot to mention, uncheck that box "Show profiles for this display only" and try some of those sRGB and RGB profiles to see if you can get closer that away.
Dennis

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Help with colour profiles and wide gamut monitor

Hi there,
I know this issue must crop up a lot due to its confusing nature but I would really appreciate it if someone could explain what settings I should be using in Photoshop to get accurate colours. I had a look around and couldn't find any other discussions that answered this exactly.
My set up is a Dell 2408WFP monitor which is wide-gamut. I have calibrated this using a huey Pro calibrator (therefore have an accurate system colour profile). My photos are in Canon sRGB space, set by Digital Photo Professional (obviously easily changed if need be).
What I would like is to be able to preview what my photos will look like on a standard sRGB display. When I open a photo in Photoshop with all the settings on their default it looks extremely washed out, very low contrast and saturation. This is nothing like what the photos look like outside of Photoshop, and also not what the photos look like on other (normal gamut) displays. I have tried using the "proof colours" settings. When I have "proof setup" set to Internet Standard sRGB the colours look dreadful, oranges become blood-red, definitely not what I am getting when I view the image on a standard monitor. If I have it set to Monitor RGB then I get colours that look like my monitor outside of Photoshop -- this is the closest out of the three to the result I am actually getting on standard gamut displays. However I know it is not accurate because I know my monitor is wide gamut and therefore more has more contrast (and this is the case).
So what combination of photo colour space, proof colour space, and proof colours settings should I be using? My main priority is just the Joe Average using his TN panel monitor on facebook, I accept that on my monitor they will look slightly different. Settings for print don't concern me at the moment.
Thanks for the help. To anyone who will suggest that I read up on colour profiles... I have, and I understand them to an extent, but there are so many variables here that I am getting lost (monitor profile, photo profile, photoshop settings, DPP settings, faststone viewer's settings, browser's lack of awareness...)
Andrew

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thekrimsonchin wrote:
I know this issue must crop up a lot due to its confusing nature
You have no idea.
What I'm reading is that you want Photoshop, with its color management enabled, to display your sRGB photos as they would be seen on a true sRGB monitor - i.e., accurately.
Something to always keep in mind, when everything's set right and working properly: Your sRGB image displayed on your wide gamut monitor without color management (e.g., by Internet Explorer) will look bolder and brighter (more color-saturated) than the same image displayed in Photoshop with color-management. There is no getting around this, because the sRGB profile is not equivalent to the monitor profile. Do not expect them to look the same.
It's hard, without being there and seeing what you're seeing, to judge whether your sRGB images are undersaturated compared to what's seen on other monitors. I do know, as one with sRGB monitors myself, that images can look quite vibrant and alive in the sRGB color space.
What we can't know is whether your judgment that your color-managed sRGB images are undersaturated is correct in an absolute sense, or whether you're just feeling the difference between seeing them on your monitor in non-color-managed apps and Photoshop.
Photoshop normally does its color management like this: It combines the information from the color profile in your document with the color profile of the monitor, which it retrieves from a standard place in Windows, and creates a transform used to display the colors.
To have it do this you would NOT want the Proof Colors setting enabled. It is the default behavior.
-Noel
P.S., I don't recall whether DPP is color-managed, but you might consider using Photoshop's raw converter, which definitely shows color-managed output, per the settings I described above.
P.P.S., Your calibrator/profiler should have put the monitor profile in the proper place and set all the proper stuff up in Windows. Is it specifically listed as compatible with the version of Windows you're running?

Dual display colour variation.

I had 2year old 23" ACD , i bought New 23" ACD (same model, not LED model). And placed both togather for dual view.
Now the problem is that color of new is more bright and white while my old ACD panel shows warm and dull color.
Is there any ways to repair/calibrate old so i have same color in both the LCD...?

Hi macboydesign
Welcome to Apple Discussions
Lots of practice!
Not included in the current lists there were a dozen other DYI profiles between the iMac and LG that were so bad, I had to delete them.
The following article is dated, but has some great tips and info:
http://www.computer-darkroom.com/colorsync-display/colorsync_1.htm
Oh' almost forgot to mention, uncheck that box "Show profiles for this display only" and try some of those sRGB and RGB profiles to see if you can get closer that away.
Dennis

Imac, dual display, photoshop cs5

Hi
Quite a few things floating around the net how glossy displays, lion etc fail to work with Photoshop CS5
Myself, find that people over exagerating a bit. Yes, there are a few problems with lion and color matching..
Anyway, me being happy with all those aspects just got a new 27 LED cinema display and was wondering what's the best way to go about making it work with this set up (iMac 27, quite a recent model not sure on specifics but don't think it maters, 27 LED cinema display, Lion 10.7.1, Photoshop CS5).
Specific questions:
is there need to calibrate the monitors? (i tried with apple native calibrator didn't seem to make a lot difference, just a tiny bit lighter) so forget or get a hardware calibrator?
how to match profiles for 2 screens, i know its almost impossible to get the perfect match, but still how would be right to treat it?
and last but not least what color settings to run in photoshop is the most suitable?
Thanks
Pavel

Hi macboydesign
Welcome to Apple Discussions
Lots of practice!
Not included in the current lists there were a dozen other DYI profiles between the iMac and LG that were so bad, I had to delete them.
The following article is dated, but has some great tips and info:
http://www.computer-darkroom.com/colorsync-display/colorsync_1.htm
Oh' almost forgot to mention, uncheck that box "Show profiles for this display only" and try some of those sRGB and RGB profiles to see if you can get closer that away.
Dennis

Intel iMac Dual Display System Slow Down

When I connect a standard VGA 17" monitor to my iMac intel 17" 1Gb RAM as a second monitor (not mirrored) the system seems to slow down. I'm using a mini dvi to vga adapter. My graphics card is a 128Mb ATI Radeon X1600.
For example if i open a couple of boxes (i.e. firefox and finder) and use expose to split them apart, where it was smooth before it now jitters. And Final Cut gives dropped frame warnings only when the second monitor is connected.
Is there something i'm doing wrong or is this to be expected?

Thanks for your advice. I suspected it might be a ram thing. I plan to upgrade to 2Gb (shame that's the limit). hopefully that'll fix it.
So could the hardrive also make a difference? I have the standard 150Gb drive. Can this be changed in a 17" iMac? Also where you said "look at the size of your hard drive and any setting for swap".. do you mean theres a setting I could change or that I should get another drive? (sorry i'm a bit rubbish on this side of things)
oh and it's Final Cut Pro (UB) i'm using
Thanks alot
iMac 17" 1.83GHz Intel Core Duo - 1Gb Ram Mac OS X (10.4.8)

T420 Dual Display Temp Switch to Single Display then Back

T420, no docking station, with external monitor connected to VGA port. Windows 8.1 64-bit. Display driver up-to-date, Windows 8.1 up-to-date. Lenovo Syetm Update run and everything is up-to-date. So occasionally it switches back to single display (laptop screen) then immediately switches back to dual display. Seems to do this randonly without warning. I don't see any obvious issues, event log does not show any problems when the issue occurs. I did reinstall the display driver but that did not help. This is more of an annoyance then anything else. I just stop what I am doing and wait for it to switch back to dual display, as I use the external monitor as my primary desktop.

Same problem here. Brand new 2011 MacBookPro 17" and the 27" Cinema Display with the display port. The display goes black for about .5 secs, then comes back on. It is sporadic but happens multiple (30) times per hour.
The display worked fine with my old MBP 2010 with display port, so obviously this is a Thunderbolt issue.
Firmware update please?!

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

If it won't turn on then the monitor is dead (power supply?, video circuits?). Not worth repairing.
If you have a new iMac then it has thunderbolt. So exactly what is that monitor you are trying to connect? For TB you can connect a mini-displayport monitor. Probably (not 100% sure with TB) can use dvi or vga too if you have the appropriate adapter.

Colour management warning for dual display users

For those of you who require a colour managed workflow and have more than one display, be very careful in Mountain Lion. It appears to have a bizarre bug where images loaded and shown on the primary display (e.g. in Preview) are initially rendered with the colour profile from the secondary display, or something along those lines. Dragging the display window to the secondary display and back again sorts things out. I've filed a bug report.
If your two (or more) monitors have the same colour profile, you won't have a problem. The only workaround I can see is to set your least important display(s) to all have the same profile as your (probably calibrated, if these things matter to you) primary display, at least until (if?) the bug gets fixed.
If you want to see it for yourself, set your two displays to differing profiles - e.g. NTSC (1953) on the primary and Wide Gamut RGB on the secondary. Then load an image into Preview - something with lots of shades of red "works" well for the colour profiles mentioned. Take a screenshot of the Preview window as a reference. Move the window to the secondary display; note the colour shift as it gets re-rendered. Now drag it back to the primary display. It'll look quite different compared to the screenshot you took earlier, despite the fact it's the same image being shown by the same application on the same display in the same window... All you did was drag the window between two monitors and back again.
It doesn't seem to matter if the image in question has a colour profile embedded in it or not. When comparing with your screenshot, feel free to drag the screenshot between the monitors too - after all, it'll be suffering the same rendering bug! You'll still see a different result; in fact it may even be magnified by the accumulated rendering errors.
Preview isn't the only application affected; I've seen identical issues under harder to replicate circumstances in Safari, for example.
Given this fault and others I've seen with colour rendering in Lion, plus several new bugs found in Mountain Lion, I'm afraid that if a colour managed workflow is important to you - well - Snow Leopard or Windows...?! Ugh, what a mess

I've encountered many of the same woes with color management being a graphic designer, but here's my issue:
Have a 15" (Early 2011) Macbook Pro. It is turned on with me hooked up to my Dell U2410 and display open for a dual display configuration. The Dell is my primary monitor.
I then unplug my MBP to use it around the house. I go to plug it back into the Dell for my dual monitor. I notice that the color on the Dell looks good, but now the MBP has a very blue color temperature. Like moving from the preconfigured 'Color LCD' profile to 'sRGB' which definitely shifts to a blue color on the MBP.
I check the color profiles in System Settings and the Color profiles are correct. 'Dell U2410' for my Dell and 'Color LCD' for my MBP. But as I said, it's much bluer than standard. I try to change the color profiles around on the MBP and no matter which I select it's always the same color with no shifts I would expect to see.
Only solution I have found is to restart my computer. Upon restarting all is well again in the world.
It's pretty annoying having to restart my computer everytime I plug it back into my workstation with Dell and keyboard.
Related note: USB does not work when I plug things back and again have to restart to fix this.

Setting Photoshop monitor profiles when using dual displays?

I'm using a Macbook Pro connected to an Apple Cinema Display under OS 10.5.8. Both monitors are calibrated and I export from Lightroom to Photoshop in ProPhoto. The Photoshop working colour space is also ProPhoto so there is no mismatch there.
When in dual display mode I like to have my Photoshop application on the Macbook screen and the photo I'm working on shown on the Cinema Display. In fact, I couldn't work any other way because the laptop's screen is not at all suitable for precision work.
I noticed that when I send an image from Lightroom to Photoshop CS4 for further editing the colours were off in Photoshop. This lead me to check the monitor profile used by Photoshop and I saw it was using the Macbook Pro .icc profile. This seems to be used even if the image is displayed in the external display. Selecting the Cinema Display as "default" in ColorSync doesn't change the situation. As a result, the colours as displayed by Photoshop are incorrect.
The only "solution" I have found is to either go to System Preferences > Displays and select the external monitor as the principal one (which is inconvenient because it negates many of the advantages of using dual monitors) or setting the Cinema Display's .icc profile for the Macbook Pro as well (which makes it the one chosen by Photoshop but means I'm only working wiht one correctly calibrated monitor).
Is there a solution to this problem? Ideally I want to have both my monitors calibrated and Photoshop detect which one I'm using to view my photo. Failing that, I would like to have both monitors calibrated and "tell" Photoshop to use the Cinema Display as the principal monitor.I don't want .
Many thanks!

Thanks for your reply!
I'm not too worried about 10.6 because I'm not using it ( I reverted to 10.5.8 precisely because of the colour issues).
I don't really understand your reply. My problem is that if Photoshop uses my Mabook Pro profile as the "monitor profile" my pictures - as displayed on the Cinema Display - look different in Lightroom and in Photoshop. It's as if Lightroom is "aware" of which of the two displays is being used whereas Photoshop can only deal with one at a time. I would like to know if this analysis is correct and what I can do so that Photoshop displays my photographs the same way as Lightroom does on each of my two displays.

Dual Display on Early 2005 Powermac G5 - Second DVI Port bad?

Hi
I've just bought a second display for my Powermac and can't get it to work. Monitors OSD says no DVI signal and i get a blank screen on second display. Main display is still fine.
System Profiler recognises that second monitor is attached and SysPref/Displays thinks that there are two monitors attached.
Monitor & cable definitley good as they work when I swap them round.
Monitors are Sony SDM-S75D & S74. Graphics card is an ATI Radeon 9600.
I've not used the second DVI port since I bought the Mac new a two years ago, so it may never have been good.
I've tried:
Known good tft display
Known good dvi cable
Reseat cables
PMU reset
NVRAM reset
Open firmware reset-all
Checked for updated drivers.
Before I look at buying a new graphics card, is there anything I haven't tried yet?
Cheers
Gareth

OK, this is odd.
In desperation after finding out the price of a new graphics card;
my sony tfts are dual input dvi and vga. so i dug out the dvi to vga connector that came with the mac. Now running the second monitor via dvi to vga converter and its ok. not as sharp an image as the dvi main monitor, but ok. will still have to buy a new graphics card sometime.
So dvi to vga works on 2nd port, but not dvi to dvi!!

Cisco Profile 52/55 Dual - displays video on only one screen after software upgrade 7.1.4

Hi,
I've upgraded the Profile 52/55 Dual system to TC 7.1.4 and it no longer shows video on both screens during a conference. It displays content on the second screen fine. It worked in version 6 so I wonder if something changed in the software or the endpoint requires some additional configuration.
I've checked settings under Configuration > System Configuration > Video > Monitors and it's set to Dual. I've changed it few times and set it back to Dual but this didn't resolve the issue. I can't see any dual screen option key added under system information but I assume it has a dual screen option hence it's a dual screen system.
Do I need to change any settings?

Hi Patrick
Thank you very much for your response.
The system doesn’t have a remote control as such, it’s an MX700 so it has the 10inch touch panel, I had some engineers onsite attempting to bring the self-view image up using the panel but the only image that they managed to retrieve was a self-view PIP on the main image.
If I change the self-view settings in the configuration nothing appears to happen on the codec, the second monitor will only display the presentation, it’s as if the system is stuck in dual screen presentation only, even though when I set the system to dual screen, flick it back to single screen, set it to dual screen, back to the same situation no image unless there is a presentation being sent.
I have ensured that these settings are forced on the system
xconfig Video Monitors: Dual
xconfig Video CamCtrlPip CallSetup Mode: Off
xconfig Video SelfviewDefault Mode: Off
xconfig Video SelfviewDefault OnMonitorRole: Second
xconfig Video SelfviewDefault FullscreenMode: On
But no matter what I do I am unable to get the behaviour that I expect, this is why I have posted on this forum, I seem to think that the problem may be related to a software bug, however I am unable to downgrade as that would stop the control panel from working (this system doesn’t have a remote), and I see no mention of a second monitor issue reading the release notes, I have checked the online bugs and cannot find anything there either. so I am wondering if someone in Cisco has any idea as to what is happening here.
I thought about trying to use TC console to see if I could force a layout via this tool / or at least see what layouts are on the system, however the TC console version 6 will not connect to this system (I think this is more firewall related than system, as standard telnet and ssh attempts fail also).
Again I appreciate any and all assistance provided greatly, I am completely baffled as to what is happening here.
Cheers

IMac G5 (iSight) wont do dual display? Are you kidding me!

Why in the world did Apple even make a computer that won't do dual display. This is probably one of the first let downs I have experienced with Apple. I just purchased the iMac G5 to use primarily for presentation and need dual screen capabilities. I should be more clear on the specs page that the "all new" iMac DOES NOT DO DUAL DISPLAY. I am thinking of returning the iMac and going another direction (pc) and don't want to, but may not have a choice, unless someone has a fix for my problem.

I understand the risks of hacker-ware, and certainly don't want to void my warranty. But this begs the question: If a hacker can figure out something that usually works, can't Apple fairly easily come up with an official iMac G5 expansion that will always work and that won't void the warranty? Please, Cupertino, Please! I've subscribed to this topic string in hopes of hearing a happy ending.

GT72-2QE Display/Monitor output and colour profile

I recently got the GT72-2QE which has a CMN1735 display panel. My problem is that this is listed as a Generic PnP Device, and when attaching my TV (via HDMI), it's also listed as a Generic PnP device.
I'm using colour profiles (using windows colour management), but both devices are listed as Generic PnP Monitor and the profile is sometimes switched between the two devices. Does anyone else have a similar problem/solution?
I don't really use extended/duplicate displays, only switching, so I thought I'd write a script to enable/disable my HDMI out as and when needed, but when I disable the TV (also listed as a Generic PnP Monitor), both monitors disappear from windows colour profiling.
It's really frustrating, as the panel is so badly calibrated, it needs the colour profile. I've also uploaded it here: <filedropper.com/spydercal> for anyone else if they want it. It was using a Spyder3 with a target of 2.2/6500 (backlight set to 60%). It won't be perfect on everyone's screen, but I'm pretty sure it will get a lot closer.

Quote from: thscbz on 04-December-14, 15:42:50
It's really frustrating, as the panel is so badly calibrated, it needs the colour profile. I've also uploaded it here: <filedropper.com/spydercal> for anyone else if they want it. It was using a Spyder3 with a target of 2.2/6500 (backlight set to 60%). It won't be perfect on everyone's screen, but I'm pretty sure it will get a lot closer.
Thanks for your profile upload but I cannot access the file through the link you provided. Can you put the proper url please ?

My imac screen display is unfocussed, odd coloured and blurred (caused by rogue cate walking over keyboard). I have no idea what settings have changed or what to check. Any ideas?!

My imac screen display is unfocussed, odd coloured and blurred (caused by rogue cate walking over keyboard). I have no idea what settings have changed or what to check. Any ideas?!

It could be a number of keyboard shortcuts, here's a few.
If the screen is zoomed, hold CNTL and scroll down with mouse or trackpad.
If screen looks like a negative, hold down CNTL OPT CMD and click 8.
Let us know how what other symptoms are shown.
Regards,
Captfred

I can't calibrate any color profile for my iMac's display!

I think I accidentally deleted the color profile for my iMac's display
and now it won't let me calibrate any profile! All the colors are bright and washed out.
When I go to the display>color preference panel I get an error sound whenever I click ANY color profile, and it doesn't load. When I click "calibrate" it gives me the message: "Can not calibrate the display. The factory profile for the display could not be found."
But I wasn't even using the factory profile, and it won't let me choose any other ones, either (though a whole list does show up!)
I tried repairing/verifying the profiles in the ColorSync Utility, but it didn't help.
Is there somewhere I can download the profile and install it? I'm running a white 20" Core Duo 2GHz iMac (summer of 2006), if that helps.
Thanks!

seenew,
I'm wondering if you would have any luck with resetting the PRAM? PRAM settings hold some of the display preferences I believe.
See: "Mac OS X: What's stored in PRAM"
If not, I am wondering if reapplying the Combo update for 10.4.7 might correct the display calibration issue or at least return it to the default?
I don't think that recreating the .plist file for displays will help.
As far as I know you cannot "download" the profile.
sorry if those suggestions don't help,
littleshoulders

IMac Dual-display colour profiling on second LG monitor

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