Hi, I'm trying to use my MacBook Pro to send calibration patterns to an HDTV over a TB->HDMI cable. These patterns are to be read from the screen using a DTP-94 and ColorHCFR, a free display calibration tool. However, it's essential that these patterns reach the HDTV unmodified, and as far as I'm aware OS X applies a display profile to all outgoing video signals. As a result, the video patterns would differ from what was expected and so the calibration would be affected. So, first question: am I right in assuming that a display profile is always applied? OS X seems to assign a generic profile no matter what I do, but maybe it simply acts as a passthrough? Second question: if I'm right and OS X always assigns a modifying display profile to any given display, is there any way of disabling it, even temporarily? Thanks.