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Re: Dual screen problems
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Re: Dual screen problems


  • Subject: Re: Dual screen problems
  • From: "I. Savant" <email@hidden>
  • Date: Wed, 5 Nov 2008 14:35:32 -0500

On Wed, Nov 5, 2008 at 2:03 PM, Tverdokhleb Andrey <email@hidden> wrote:

> Recently I've noticed that NSImage initialized from NSData with TIFF is not
> displayed properly on dual screen systems. One screen displays image
> correctly, but another one shows it completely wrong compared to the same
> image opened on the same screen in Photoshop f.e. Farther investigation
> showed that both monitors should be connected to the same videocard and that
> most of applications dealing with graphics are affected by this. Some work
> fine though. Photoshop, ColorSync Utility, Aperture display images properly
> in all cases. Preview, Safari, iPhoto - wrong colors on one of monitors and
> this goes to all image formats, not only TIFF.

  From the description, it seems to me like the image caching is not
being properly managed (ie not refreshed) when moving it from display
to display. Try setting NSImage's cache mode to never cache. Or, use a
IKImageView (part of the Image Kit palette bundle in IB) and see if
the problem follows it.

  I'm very interested to hear what you find!

--
I.S.
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