External monitor color is different from internal display. I have a Lenovo W520, 4270CTO, built July 8th, 2011, Win7 Pro, i7-2720QM CPU @ 2.20GHZ. 8GB DDR3-SDRAM (1333MHz) Samsung memory, laptop display 1600x900 res. Intel HD Graphics Family, 3.76 GB Intel Video Card in processor, driver igdkm64.sys version 126.96.36.1991, 3-6-2011 and Quadro 1000M 2 GB video memory, driver nvlddmkm.sys version 188.8.131.5271, 5-25-2011, hard wired onto mobo. I have an Acer AL2223 22" widescreen 1680x1050 res. monitor connected via VGA to VGA.
Due to a billing error this particular Lenovo W520 is the second one and the first on also had this problem. This issue is with extended or duplicated display.
I cannot get the external monitor color adjusted to match the laptop display. The external monitor has a blueish/greenish tint. I also have a Acer 2216W 22" widescreen and a 19" Princeton Graphics CRT monitor and the color problem exists with all 3 monitors. Also I have a Dell Latitude 610D and I run either of the Acer's on it and there is no color issue. This means the problem is with the Lenovo, the Quadro card or the software. Lenovo telephone support had me do a video stress test, the test failed. Lenovo sent a box and I sent the W520 to Atlanta depot. New mobo did not resolve issue with color. I did a re-image, update BIOS, update all other updates, no change.
I can only suspect there aren't many people using W520 and an external monitors so this problem only effects a few users, and at that only someone doing image editing might notice this issue.
I bought this computer so I could get the Quadro card. I could have bought a much cheaper machine if I only needed the internal display, which works just fine.
I also thought since the graphics card and the processor were just out maybe some kinks were not ironed out, but Lenovo, who has worked very hard to fix the problem, updated everything and cannot fix the problem. Anyone got some clue how to fix this problem? Thanks in advance, DannyR