Message
Re: [colorvision_group] ATI Catalyst drivers and monitor profile being deactivated
2008-08-22 by CDTobie@aol.com
In a message dated 8/22/08 11:42:17 AM, ThomasHAdams@... writes:
I would like to suggest the addition of "Calibration On/Calibration
Off" controls to the Spyder3Utility. Currently there is some
problems with ATI Drivers (from at least Version 8.2 to current) in
that upon closing the CCC (Catalyst Control Center)the monitor
profile is "lost" and by opening Spyder3Elite 3.0.4 and clicking
Actions>Calibration Off, followed by clicking Actions>Calibration On
it reloads the monitor profile. This is repeatable and happens with
Crossfire(X) on or off.
I have done just a quick search to see if others are having issues
with the ATI drivers in an attempt to locate a workaround. It
appears that what ever the ATI drivers are doing the Spyder3Utility
is unable to tell if the default profile (selected in Color
Management, within the display properties) is indeed activated.
Any information or advice you can provide would be greatly
appreciated. Likewise, if you need more information from me, I would
be happy to assist.
Our recommendation is that you NOT LOAD videocard utilities, and if they are automatically loaded when installing drivers, that you REMOVE them, or at least NOT OPEN them or use them. No matter how often we explain to the videocard companies that the VLUT slots in their cards need to be untouched, in order for color management to function, they "forget" and utilize these same correction locations for adjustment functions offered in their utilities.
We are adding more aggressive functions to Spyder3Utility in the next update to attempt to correct such errors automatically in as many cases as possible, but the safest solution is to not load, open, or run any type of videocard utility on a color managed system. This advice is roughly equivalent to suggesting you not smoke, or carry an open flame in a fireworks factory... you can blow your color management skyhigh with such utilities, and if you care about managed color, you want nothing to do with these utilities.
Another Utility worth avoiding is called "Shades", which lowers the brightness of your screen... but it does so by writing new data to the videocard VLUTs, which loses you your color calibration.
C. David Tobie
WW Product Technology Manager
Digital Imaging & Home Theater
Datacolor
CDTobie@...
www.datacolor.com/Spyder3
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