impossible to do monitor calibration with T42?

[razvan]

Howdy,

I've spent many hours over the last few days trying to understand why monitor calibration doesn't work on a T42 (ATI Mobility Radeon 9600 cards).

I've tried to calibrate and profile both the internal LCD and an external CRT which I was planning to use for graphics work. However, although the profiles are created successfully (with Monaco Optix XR, although I don't think it matters), when they are loaded to the video card's LUT, nothing happens. I've tried with wildly different profiles with zero effect on the display. As if the card accepts the LUT but ignores it.

I've seen an older message with the same underlying problem (at least apparently). http://forum.thinkpads.com/viewtopic.php?t=8191

I ran the LUT Tester from http://www.xrite.com/files/Monaco/LUT_T ... cation.zip and it comes back saying the card does allow LUT uploads.

Has anyone else tried this?

Thanks a lot!

[pipspeak]

I'm having a similar problem with a T43 and it seems to be down to incompatibility between the Presentation Director software, Windows, and the ATI drivers. They don't seem to talk to each other, which has resulted in some hit and miss color profiling on my external monitor and the LCD panel.

I can get the LCD panel to use a default, custom icc profile through windows but cannot get it to use a separate profile for an external monitor because windows still thinks the LCD panel is the "current monitor", despite the external monitor being the only display in use.

Do you use the Monaco software to load your profile, or let Windows do it?

[razvan]

I use MonacoGamma.exe. It loads the default profile set in Windows' display properties, but unlike Windows itself, it may make use of proprietary data in the profile. I haven't looked deeply to see if proprietary extensions are used in the monitor profile.

I sent an email to Xrite's support and another to IBM's.