Off topic....dual monitors, Intel HD Graphics 4000 and Win 7
This is a bit off-topic for colorsync but I'll ask the question anyway... :-) I'm supporting a group of designers that have 2 and 3 displays hooked up to either laptops or desktops, all running Windows 7. In a specific case, I have a designer running two 24" external displays, one is connected via VGA analog and the other display connected via HDMI. It's an IBM Thinkpad laptop with integrated Intel HD Graphics 4000 video card. There is an obvious white point difference between the two displays which got me wondering whether dual external displays each with a unique display profile is even supported. They are all using the Spyder Pro software and device for calibration and profiling. I tried google searching this question but I didn't get anything definitive. The specs on the integrated graphics adapter claims to support 3 displays......but I don't know if that means it will support a unique display profile (and video LUT) for each display. Regards, Terry Wyse
On Mar 18, 2014, at 4:04 PM, Terence Wyse <wyseconsul@mac.com> wrote:
This is a bit off-topic for colorsync but I'll ask the question anyway... :-)
I'm supporting a group of designers that have 2 and 3 displays hooked up to either laptops or desktops, all running Windows 7.
In a specific case, I have a designer running two 24" external displays, one is connected via VGA analog and the other display connected via HDMI. It's an IBM Thinkpad laptop with integrated Intel HD Graphics 4000 video card.
There is an obvious white point difference between the two displays which got me wondering whether dual external displays each with a unique display profile is even supported.
They are all using the Spyder Pro software and device for calibration and profiling.
I tried google searching this question but I didn't get anything definitive. The specs on the integrated graphics adapter claims to support 3 displays......but I don't know if that means it will support a unique display profile (and video LUT) for each display.
I expect that the ThinkPad acts as other Windows laptops I’ve seen in the past where the graphics card only has one set of calibration curves available. I think Windows 7 handles multiple displays better than XP but you are still limited by hardware in this case….. not sure though regards, Steve
Hello Terence, Not an easy question. A few years ago I solved it by getting a desktop with a rather high-end graphics card, but even there, I could not find a simple direct anwer before installing it! This information (that you can assign a different profile to each display) is even more difficult to find for a laptop. Once you have access to the computer, it is easier. Here is a suggestion. In the Windows 7 Control panels, select Color Management. There you should see each peripheral and the associated ICC profile. Check if the profile association makes sense or if you can change it. The Spyder Pro should also be able to recognize each display and perform calibration on each. Danny ----- Original Message ----- From: "Terence Wyse" <wyseconsul@mac.com> To: "'colorsync-users?lists.apple.com' List" <colorsync-users@lists.apple.com> Sent: Tuesday, March 18, 2014 7:04 PM Subject: Off topic....dual monitors, Intel HD Graphics 4000 and Win 7
This is a bit off-topic for colorsync but I'll ask the question anyway... :-)
I'm supporting a group of designers that have 2 and 3 displays hooked up to either laptops or desktops, all running Windows 7.
In a specific case, I have a designer running two 24" external displays, one is connected via VGA analog and the other display connected via HDMI. It's an IBM Thinkpad laptop with integrated Intel HD Graphics 4000 video card.
There is an obvious white point difference between the two displays which got me wondering whether dual external displays each with a unique display profile is even supported.
They are all using the Spyder Pro software and device for calibration and profiling.
I tried google searching this question but I didn't get anything definitive. The specs on the integrated graphics adapter claims to support 3 displays......but I don't know if that means it will support a unique display profile (and video LUT) for each display.
Regards, Terry Wyse _______________________________________________
On Mar 19, 2014, at 12:59 PM, dpascale <dpascale@babelcolor.com> wrote:
I could not find a simple direct anwer before installing it!
Could one not build or edit a few display profiles with an obvious color cast, then see that each display reflects the profile associated with the profile? Don't know being a Mac guy, dual display's always seemed to be supported. If Indeed each display is accessing it's own profile, then it seems the fix is to adjust the white point calibration such that the two dissimilar systems produce the same color appearance. Not sure how well Spyder Pro allows for precise setting of White Point. Andrew Rodney http://www.digitaldog.net/
Andrew, You said: "> Could one not build or edit a few display profiles .." Yes, what you describe is a simple method of verifying that the peripherals are indeed associated with the separate profiles shown in the Color management control panel. By checking the panel and making your test, they should be quite knowledgeable about the capabilities of their display system. Note: In my case, by "before installing it" I was not clear enough. I meant before purchasing and putting hands on the equipment (since the information is hard/imposible to find in specifications). Danny www.babelcolor.com ----- Original Message ----- From: "Andrew Rodney" <andrew@digitaldog.net> To: "'colorsync-users?lists.apple.com' List" <colorsync-users@lists.apple.com> Sent: Wednesday, March 19, 2014 3:02 PM Subject: Re: Off topic....dual monitors, Intel HD Graphics 4000 and Win 7
On Mar 19, 2014, at 12:59 PM, dpascale <dpascale@babelcolor.com> wrote:
I could not find a simple direct anwer before installing it!
Could one not build or edit a few display profiles with an obvious color cast, then see that each display reflects the profile associated with the profile? Don't know being a Mac guy, dual display's always seemed to be supported. If Indeed each display is accessing it's own profile, then it seems the fix is to adjust the white point calibration such that the two dissimilar systems produce the same color appearance. Not sure how well Spyder Pro allows for precise setting of White Point.
Andrew Rodney http://www.digitaldog.net/ _______________________________________________
Quick Google search found a couple relevant documents. First one is about gamma in general, second is about changing your display's gamma with a tool built into Windows 7. http://msdn.microsoft.com/en-us/library/windows/desktop/jj635732(v=vs.85).as... Several different API exist for setting the gamma, and if I'm reading this correctly it only "sticks" if an app is full screen and only for the duration of that app? That's probably how it works in the public API, but I bet for Windows tools it can be set more permanently. http://windows.microsoft.com/en-us/windows7/calibrate-your-display This details how to set your display's gamma during the calibration process using Windows 7's software display calibrator. You could use that on each display to determine whether or not the graphics card is capable of setting multiple gamma tables (for multiple displays), just set it to something obviously wacky and see if it sticks.
participants (5)
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Andrew Rodney
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dpascale
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John Gnaegy
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Steve Upton
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Terence Wyse