colour management and dual-head displays
madman2003 at gmail.com
Sun Jun 1 09:36:12 PDT 2008
On 6/1/08, Marius Gedminas <mgedmin at b4net.lt> wrote:
> Somewhat tangentially to the colour management discussing currently
> going on: My desktop spans two different monitors (laptop's internal LCD
> + an external monitor). These two monitors show the same RGB values
> differently. What needs to be done to have applications look the same
> on either monitor? What about windows spanning both monitors?
You always have the linear color correction on the video card. You can
typically have two independent signals, with a correction for each. So
a real clone mode would share color correction.
If and how this is exposed depends on your drivers.
> Could this be an argument for the composition manager to handle
> color-space conversion, at least in some cases? Figuring out which parts
> of which widgets fall on which monitor might be a bit too much of a
> complexity to require from the toolkits and applications.
> Or is this use-case unreasonably hard to support? I also wonder about
> clone modes.
> Marius Gedminas
> Those who can't write, write manuals.
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