Hardware Profiling a Laptop LCD - Impossible?

Did you calibrate the external panel separately, or are you using the profile that you created for the laptop display? I'm by

no means a color expert, but as far as I can tell, this issue is isolated to laptop displays—it'd be weird if you noticed it on

your external display as well.

Side note: New MacBooks in a couple of days. Here's hoping some sort of miracle happens to let us calibrate them.

Both screens were calibrated separately, they have their own profile... this problem can also affect standard/external LCD monitors, not only laptop panels.

If you look at some reviews here (most, but not all, show the gamut after calibration): http://www.behardware.com/html/cat/22/ you'll see that many have exactly the same problem (gamut not wide enough in the blues).

Btw, I have now tried with a third app (basICColor): still the same problem.

Dear all,

I have the same trouble on three laptops (HP, HP and Acer, all under XP). I use Spyder 3 to calibrate the screens. It looks like "it is not a bug, it is a feature" ;) If it is a bug, then we should stick to the comment in this thread about color change rate and TFT elements response I guess. Some slow reaction if it takes place for laptop LCDs in blues will definitely drive any colorimeter crazy. All the rest is hidden in the profile connection transformations. I'm not common with in mathematical details but I assume there are general STANDARD ways which should give good mappings. Most likely LCD screens ARE NOT STANDARD in one or other way. Is it the matrix response or not: I guess not so many people know. What seems true is that changing the profile creation software will not cure the problem. If the hardware does not drive the colorimeter crazy, then, probably, one has to accept the LCD purple tint and try to find an LCD-specific profile mapping.

Technically: the blue angle of my monitor(s) profile(s) triangle is just above (the same x, bigger y) the blue angle of the sRGB on the xy-chromaticity chart. NO ONE known to me rendering intent would raise blue point straight up. Thus ... What the laptop users may expect?

Can people around recommend (or not maybe) the Dell 2408WFP? Is it a good piece for photos? I have an amazing 25% off deal right coming weeks?

With best regards,

Alex

<p>I think this is a Snow Leopard related issue (at least on Apple laptops). I have been using Tiger, Leopard and now Snow Leopard on my old MacBook. In Tiger and Leopard the calibrated profile looked awesome. On Snow Leopard the profile looks really bad - especially the blues (=magenta). I'm using an i1 Display 2 with iMatch 3.6.3. I've also tried a trial version of BasicColor - no change. It's a known problem Snow Leopard won't handle ICC v4-profiles (yet), so we're stuck with v2. Anyway, I can think of several causes (unverified):</p>

<ol>

<li>Apple has changed the way color management works in SL = old software uses old API:s which no longer work as they should.</li>

<li>Permission problems = maybe the LUT can't be written?</li>

<li>Apple has color managed the GUI and made some mistakes?</li>

<li>The display drivers are messed up in SL? Maybe they've got wrong native white point-values or other wrong parameters?</li>

<li>Some other random bug?</li>

</ol>

<p>Once again - I've had my calibrated profile working really good on THE SAME computer, but on Tiger and Leopard - now it's not working anymore in Snow Leopard.</p>