On Mon, Sep 07, 2009 at 09:46:32PM +0200, Kai-Uwe Behrmann wrote: > Hello, > > has anyone sucessfully connected the DreamColor device with 10-bit/channel > to a laptop? I would like to work and demo the HP on its full > capabilities. > > What I have read on HP's monitor page is that simply HDMI 1.3 or > preferedly a DisplayPort 1.1 connector is needed to drive the device at > 10-bit. There is no compatibility hardware list to tell more if something > is against a recent AMD or Nvidia. So I simply assume the HP will work > flawlessly at 10-bits with any new hardware at least in OpenGL views. > > > kind regards > Kai-Uwe Behrmann > -- > developing for colour management > www.behrmann.name + www.oyranos.org
About a year ago, over a weekly beer, I heard viavia that some developer, when confronted with dream colour, had said something along the lines of: "10 bits per channel? I can do all of that inside $MyLittleWM!" :) There is no point in a dreamcolour monitor unless you are actually feeding this monitor 30bit colour. This has nothing to do with what the layout in the framebuffer or drawables is like. If you have a 30bit framebuffer, but still feed your monitor a 24bit digital signal, then you're really mostly fooling yourself :) ATI R5xx and up hardware does 10bits internally throughout the modesetting chain, but unless the digital outputs are adjusted correctly, your monitor will not get this. Of course, it could be that for many generations, this was not tested properly and that therefor older hw might not work properly or might need special workarounds or that atombios does not help you to set this up. I believe that nvidia did the legwork at the dix side as iirc they made it work with their binary-only driver. Luc Verhaegen. _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
