On 2019-03-07 5:38 a.m., Graeme Gill wrote: > Michel Dänzer wrote: >> As of xserver 1.19, if the Xorg driver calls xf86HandleColormaps(), all >> relevant mappings (colormap, global gamma, xf86VidMode per-X-screen >> ramp, RandR per-CRTC ramp) are composed, and the result is applied to >> the hardware LUT for all CRTCs. > > Hmm. Yuk from a color management point of view. So when > I load up an ICC display profile I really need to reset > all of that to be certain the screen is color calibrated!
Yep. The alternative is that the different mechanisms clobber the hardware LUT from each other, which sucks from a user POV. Welcome to the wonderful world of "colour management" in X, please pick your poison. I guess you can see why Wayland has a different design. :) -- Earthling Michel Dänzer | https://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel
