[argyllcms] Re: OS X 10.9 Mavericks has broken LUT manipulation

  • From: Hugo Meinedo <hugo.meinedo@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 30 Oct 2013 10:58:55 +0000

Dear Graeme,

I've placed the modified disptools in the Argyllcms 1.6.1 bin directory and
was able to calibrate and profile my MacBook Pro display using the latest
dispcalGUI under Mavericks.

Thank you very much,
Hugo Meinedo


On Mon, Oct 21, 2013 at 1:36 AM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:

> Martin Diers wrote:
>
> > new_dispwin: CGDisplayModePixelEncoding =
> '--------RRRRRRRRGGGGGGGGBBBBBBBB'
> > new_dispwin: CGDisplayGammaTableCapacity = 1024
>
> Hmm. Well it seem that 10.9 is giving us contradictory information. On the
> one hand
> it's saying that the frame buffer is 8 BPP, and on the other hand it's
> saying
> that the VideoLUT tables have 1024 entries. That leaves us guessing as to
> what's actually going on. Is the frame buffer really 8 bits and only 256
> entries of the VideoLUT is being used ? If so, which entries ? The top
> 256, the bottom 256 of something else ? Or is the frame buffer really 10
> bits deep ??
>
> We're not likely to get any answer from Apple, so we're left with guessing
> + trial
> and error.
>
> I've modified these:
> <http://www.argyllcms.com/disptools_osx64.tgz>
> to believe the VideoLUT depth information. See
> what happens.
>
> Graeme Gill.
>
>
>
>

Other related posts: