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