On 15 January 2012 07:53, Kai-Uwe Behrmann <ku.b at gmx.de> wrote: > * EDID_red_x: > * EDID_red_y: What floating point precision? For instance, if GCM writes "0.8789123" and Oyranos writes "0.87891229" would that match? > * EDID_gamma: To how many decimal points? If it's 2.2, do I encode "2.2" or "2.200000"? Richard.