My ICC profile was not used, too (Xubuntu 14.04, loading ICC with xcalib in XFCE's autostart options). I realized that the NVIDIA X Server Settings tool is always loaded at startup and resets the display's color. After I deactivated it (removed the mark in Settings Manager - Session and Startup) my ICC profile works.
My ICC profile was not used, too (Xubuntu 14.04, loading ICC with xcalib in XFCE's autostart options). I realized that the NVIDIA X Server Settings tool is always loaded at startup and resets the display's color. After I deactivated it (removed the mark in Settings Manager - Session and Startup) my ICC profile works.