IPhoto cant switch monitor profiles in dual monitor mode

Hi,
my problem is that i am using iPhoto 6 (newest version) with the internal screen of my macbook and an external screen. Both are calibrated. Most programms like Photoshop or Capture one or Aperture switch the profiles of the monitors while going from one to another. You can see that, it just takes half a second and the correct color is displayed. iPhoto seems to be not capable of that feature. It stays all the time with the profile of the main monitor selected in ColorSync.
Does anybody else notice this or am i the only one?
The Apple Care Hotline couldnt help at all...
Btw. It is exactly the same problem with Safari.
Cheers
Axel

Thank you Terence for your reply.
I think you are right. But nevertheless I need to know what I am dealing with. Sometimes I am just not sure wether running on the correct profile or not. That makes work sometimes a bit difficult.
Also I am angry because it took me a few days and a thousend nervs to find out what the problem is. Apple doesnt know of this program as far as they told me. I wonder if this is a known "bug" or if this should not be the way it is. Maybe these programs are usually able to switch the profiles. I just dont know. That is what I want to know.
Cheers
Axel

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Photoshop CS5 still chooses wrong monitor profile in dual monitor case?

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PeterFacey wrote:
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(Latest update) This is the best I can do to alleviate the problem, and does reduce its severity immensely, but I found myself still noticing some slight playback glitches in videos on my second monitor which probably also translate to anything else with movement. I have tested with a panning scene in one of my videos and there is a subtle micro-stutter on my second monitor which I can find no way to fix. This doesn't occur if outputting to a single display, one or the other, nor does it occur when playing the video on my primary monitor in a dual-monitor configuration. Note that when I say "primary monitor", I am not referring to the monitor Windows has marked as primary, but my actual monitor rather than TV. In a dual-monitor configuration, this micro-stutter will only occur when playing video on my right monitor (TV), regardless of settings or which ports the monitors are connected to on the GPU. The micro-stutter occurs with no relation to the activity on the other screen, as it can be completely still. I can confirm the micro-stutter does not occur at all with Desktop Window Manager (Aero) disabled. In short, this is a nightmare.
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I think I've solved the problem.. for me, anyway. I've divided this into short answer and "long answer", which is closer to a stream of consciousness in some ways, as I found out about Force10Level9 as I was writing.
The short version:
I've found some registry keys which seem to have fixed the problem for me. I haven't experienced any side effects, but use the tweaks at your own risk!
I don't know exactly what they do. This comes from a lot of.. experimentation. I believe FrameRateMin tells the Desktop Window Manager that it's crucial to try to keep the framerate at or above the value specified (more details below), and Force10Level9 sounds like it forces DWM to use DirectX 9. I'm fairly certain about the former, not as certain about the latter, but together they do wonders.
You can view the fix below. You can then save it as a .reg file and import it into your registry. Restart the Desktop Window Manager service or reboot to see the changes.
Fix: http://pastebin.com/FFDbubw9
Undo: http://pastebin.com/zA8CJY06
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(P.P.S. The screen fade that happens when you log in/out is just as choppy as before (or if it wasn't choppy for you, that shouldn't have changed). Oh well, how often do we see that thing, anyway? :))
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The long version:
Well... I was able to do one more thing.
There is an undocumented registry key which allows you to fine-tune the Desktop Window Manager's scheduling. Unfortunately, all of its values seem to be defunct in the final version of Windows 7 we all use today... except one: FrameRateMin.
From what I gather, the Desktop Window Manager (Aero) carefully monitors the framerate it is able to achieve, and when it can't measure up to its own expectations, it will perform a "step down", or framerate reduction, and maintain this lower framerate for a given period of time (at one time specifiable with a registry value) before trying again at maximum speed.
I presume it does all this to keep things looking "smooth".
The problem is, in most cases, it doesn't help, and actually prolongs the stuttering duration. By "in most cases", I mean in every case it's happened in my personal usage of my Windows 7 computers.
So what helped me was setting this FrameRateMin value to 60. That way, the Desktop Window Manager considers anything under 60fps to be unacceptable and will not remain at a lower framerate for purposes of perceived smoothness. Thus, the stuttering will take up as little time as possible, making it nearly unnoticeable most of the time.
Keep in mind DWM shouldn't be having performance problems to begin with, but apparently in some cases, like with my particular hardware (desktop and laptop) and the latest NVIDIA drivers, it does.
Down to brass tacks. The registry key is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\DWM\Schedule. The value is FrameRateMin, a DWORD representing the minimum framerate DWM will consider as acceptable. I set it to 60, but you can set it to whatever you want.
To repeat, this WILL NOT prevent Aero from ever getting below the framerate you specify; it simply prevents Aero from retaining a lower framerate after a stutter in order to give the illusion of smoothness (an illusion which fails).
I imagine the main reason it fails so spectacularly in my usage is because I watch a lot of videos which play back at 24fps. Such a framerate plays back terribly with a 30Hz refresh rate, which is what Aero would reduce itself to for extended lengths of time. Now, performance hiccups are minimal, but sadly still existent.
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No monitor profile available. Yellow tint after import

Hello. I have bough last week a new Toshiba notebook which has Windows 8.1 preinstalled on it.
I have noticed a problem that seems other came also on the same issue. When i watch images on a non profile managed software, the images look fine. Once i import them on Lightroom or Photoshop, the images get a yellow tint.
The problem and a possible solution is also described here: http://photography-on-the.net/forum/showthread.php?t=1164320 . This is setting the sRGB as a monitor profile. I know this is not a great solution, but surely better than what i see on my monitor. In any way, this unfortunately this did not work for me.
This is what i mean with the yellow tint (left Lightroom, right Irfan)
Today i tried following:
Step 1
The image is in RAW format. I import it in Lightroom and gets that yellow tint i described.
I export it with sRGB in jpg format. The jpg file has still that yellow tint. Please note here, that others that report similar problems, they mention that after the export they image looks again fine.
Step 2
I open the RAW image with Irfan (not color managed) and save it as jpg. The image is saved "correctly", as you see on the right side of the image above.
Step 3
I import the exported jpeg that was created with Irfan and import it to Lightroom.
The yellow Tint now does not appear on the imported JPEG.
One more tip i can give is: When i do a Soft proofing on Lightroom and choose sRGB i still see that yellow tint.
What exactly is happening ? I try to identify the problem. Why i see just raw images with this yellow tint, no matter the profile i set for my monitor and no matter the proofing options on lightroom.
I don't want to spend 100+ euro for a calibration device and not being able to use the profiles.
Any suggestions for further testing ?

First - Irfanview needs to be at least IV 4.35 and needs to have the LCMS.DLL plug-in installed as well as having the Color Management enabled so that you have some chance of your Photoshop and IrfanView versions of an image matching:
Alright we have the first conflict here.
I have the latest IrfanView version (4.37) , i saw that the Lcms.dll exists in the plugin list, and i have set the settings as suggested.
Furthermore at the moment i have sRGB as my default monitor profile. Still this is how i see things.
IrfanView and Photoshop have the same difference as before. Yes i have rerasted IrfanView on every change. I actually freshly installed also the latest irfanView version with its plugin.
Photoshop - Irfan Side by Side
Monitor Profile Settings 1
Monitor Profile Settings 2
IrfanView Settings
About this
As you can see the Adobe default processing with the Adobe Standard profile, at top left, is a little greenish. This is compared to the default camera processing as viewed in the camera-embedded preview jpg from the CR2 at the bottom right which a white frame around it.
When i open the raw image on LR, i have (from what i can see on my monitor) the same results as your Adobe default processing (Top left) . What confused me on your image above is bottom left image "Adobe processing - Camera standard". What is with Adobe processing meant here? The camera profile? If yes then how can we have Adobe camera profil but also camera standart ? If you mean the process LR provides, mine is set on 2012. But no adobe available for selection. I do not know if this is meant though.
Here is my comparison between Adobe Standart Profile and Camera Standard.
LR: Adobe Profile vs Canon Standart Profile
One more comparison is of the files you made available including the IranView jpg you supplied as compared to the Canon JPG preview that I extracted from the CR2 file:
What you can see is that the CR2 as viewed in LR and LR's exported JPG of that CR2 look about the same (top and bottom left), and the IrfanView and Canon-JPG versions of the CR2 look the same (top and bottom right). This is your IV version of the JPG, not something I made, but I expect IV has just extracted the camera-embedded fullsize preview JPG from the CR2 file just like I did using a different tool, so they look the same, but it is possible your IV is using a Canon-specific plug-in that uses the Canon-supplied SDK library DLLs that can also duplicate Canon processing. I only have the Formats.dll and the CRW.dll but not all the extra SDK DLLs so I expect my IV is only extracting the camera-embedded preview JPG.
Yes i can confirm that also on my environment. The exported CR2 from LR matches the exported JPG as also there is a match between IrfanView CR2 with the Camera standard profile export. Unfortunately i cannot confirm if IrfanView uses a sort of Canon-plugin to make the RAWS rendered automatically with the Canon standard profile.
And if you want your Adobe treatment of CR2 files to look much more similar to your camera's treatment, then use the Camera Standard profile in Lightroom and the PS ACR plug-in.
Question on this. Should i always put a Camera Standart profile on all my images after importing them on LR ?
Also please, let me know what you meant with Adobe Processing. I searched on the web with "Adobe Processing lightroom" , but i could not understand what is meant.
If using the Camera Standard profile doesn't make things look almost the same, then please post a side-by-side of LR's view of the CR2 and IrfanView's JPG extracted from the CR2--what you've linked to, just above.
Here is a comparison between an exported JPG from Lightrom with camera profile (Right) compared to an exported JPG with IrfanView from the RAW (left). As mentioned before the images look identical, with the one exported from LR with Camera profile being a bit more vibrant. But not much of a difference.
IrfanView vs Camera Profile export
So in the end it seems you see also that green-yellowish cast on the RAW image. From what i see on the screenshots you made.
The question now is why i do not see RAW the same as Adobe software ? Could i do this test with an other viewer?
To summerize from my side as well. A monitor calibration is surely good to do. On the other side the cast i see on the RAW in this case has not to do with the profile but rather with Adone profile and the way this image was captured.
PS. I must admit that is one of the best on line support i have ever seen. Thumbs up ssprengel !

IPhoto cant switch monitor profiles in dual monitor mode

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