Adobe Gamma no adjustment possible

KP
Posted By
Kurt Pintoffl
Mar 8, 2005
Views
603
Replies
14
Status
Closed
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!

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P
PH
Mar 8, 2005
Kurt Pintoffl wrote:
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!

I am not a color expert, but I think Gamma has nothing to do with printing, but with the monitor settings. You should look into the Colormanagement thingy’s. Why your Gamma does not work I would not know, its a bit off on my Mac also. —
Peter
KP
Kurt Pintoffl
Mar 8, 2005
Yes, you are correct, gamma has nothing to do with printing, but if it is wrong, it misleads me when I adjust colors from my pictures and so it can influence printing indirectly…
thanks
kurt

"PH" schrieb im Newsbeitrag
Kurt Pintoffl wrote:
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive,
so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move
the sliders, but the colors do not change. I copied the gammaloader and the
cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!

I am not a color expert, but I think Gamma has nothing to do with printing, but with the monitor settings. You should look into the Colormanagement thingy’s. Why your Gamma does not work I would not know, its a bit off on my Mac also. —
Peter
S
Stephan
Mar 8, 2005
Kurt Pintoffl wrote:
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!

I think Adobe Gamma doesn’t work on most LCD displays
Gruss aus Hawaii

Stephan
H
Hecate
Mar 8, 2005
On Tue, 8 Mar 2005 13:17:41 +0100, "Kurt Pintoffl" wrote:

Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!
Yes. Don’t use Gamma. If you check the Adobe site they specifically state that it doesn’t work with LCD displays.

And one of the problems that you have proofing LCD displays for print is that, unless you buy colour-corrected (i.e. expensive) LCD monitors, colour accuracy isn’t that good.



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Graeme Cogger
Mar 9, 2005
In article <422d97e1$0$13468$>,
says…
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!
Despite what others are saying, Adobe Gamma DOES work for LCD monitors (I.e. the sliders should work) since it adjusts the graphics card and not the monitor. The question is whether it produces a decent profile – it doesn’t for many LCD screens.

The only reason I can think of for the sliders not working is if the graphics chip is an ATI one. For a number of versions of some ATI drivers, they disabled application control of the graphics card lookup table, which is what Adobe Gamma adjusts when you move the sliders. If it is an ATI graphics chip, try updating the drivers to the latest version. If not, then I’m out of ideas…
BK
Brian K
Mar 9, 2005
Hecate, do you have the URL? I can’t find it on the Adobe site and as you know, I need to use gamma and it works for me.

Brian

"Hecate" wrote in message
On Tue, 8 Mar 2005 13:17:41 +0100, "Kurt Pintoffl" wrote:
Yes. Don’t use Gamma. If you check the Adobe site they specifically state that it doesn’t work with LCD displays.
KP
Kurt Pintoffl
Mar 9, 2005
Thank you Graeme, it was an ATI Mobility Radeon 9200 and the reinstallation of the drivers corrected the slider-not-working-problem. Now I can continue trying to print with correct colors!

Thanks to all, who responded!

kurt

"Kurt Pintoffl" schrieb im Newsbeitrag
Hello,

I have a notebook with windows XP prof and Photoshop CS. A long time, everything was fine. Suddenly the printouts where much too color-intensive, so I tried to adjust Adobe gamma.
When I start gamma.cpl I get the 3 colorfields with the sliders. I can move the sliders, but the colors do not change. I copied the gammaloader and the cpl from another pc, but I still cannot change the colors with the adjustment sliders.

Has anyone ideas?

Thanks and regards from Austria!
H
Hecate
Mar 9, 2005
On Wed, 09 Mar 2005 18:30:56 GMT, "Brian K" <iibntgyea4
wrote:

Hecate, do you have the URL? I can’t find it on the Adobe site and as you know, I need to use gamma and it works for me.
No, I don’t. Try searching the knowledge base.

OK. I did it for you:

http://www.adobe.com/support/techdocs/320921.html

In this document Adobe state:

Note: Adobe Gamma cannot produce a reliable profile for flat-panel monitors. If you use a flat-panel monitor, either use a third-party utility to create a monitor profile, or use Adobe Gamma to load the monitor profile that came with the monitor.

There are other documents too. Just search for:

Gamma flat-panel monitor



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Hecate
Mar 9, 2005
On Wed, 9 Mar 2005 12:47:59 -0000, Graeme Cogger
wrote:

Despite what others are saying, Adobe Gamma DOES work for LCD monitors (I.e. the sliders should work) since it adjusts the graphics card and not the monitor. The question is whether it produces a decent profile – it doesn’t for many LCD screens.

If it doesn’t profile the screen it doesn’t matter whether the sliders work or not. Directly from the Adobe Knowledgebase:

Note: Adobe Gamma cannot produce a reliable profile for flat-panel monitors. If you use a flat-panel monitor, either use a third-party utility to create a monitor profile, or use Adobe Gamma to load the monitor profile that came with the monitor.

If, OTOH, you are happy to use an unreliable profile then I suppose you could say it worked. But then, what would be the point?



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BK
Brian K
Mar 10, 2005
My profile may not be "reliable" but it’s better than the Dell supplied profile for the 1905FP.

Brian

http://www.adobe.com/support/techdocs/320921.html

In this document Adobe state:

Note: Adobe Gamma cannot produce a reliable profile for flat-panel monitors. If you use a flat-panel monitor, either use a third-party utility to create a monitor profile, or use Adobe Gamma to load the monitor profile that came with the monitor.

There are other documents too. Just search for:

Gamma flat-panel monitor



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Graeme Cogger
Mar 10, 2005
In article ,
says…
On Wed, 9 Mar 2005 12:47:59 -0000, Graeme Cogger
wrote:

Despite what others are saying, Adobe Gamma DOES work for LCD monitors (I.e. the sliders should work) since it adjusts the graphics card and not the monitor. The question is whether it produces a decent profile – it doesn’t for many LCD screens.

If it doesn’t profile the screen it doesn’t matter whether the sliders work or not. Directly from the Adobe Knowledgebase:

Note: Adobe Gamma cannot produce a reliable profile for flat-panel monitors. If you use a flat-panel monitor, either use a third-party utility to create a monitor profile, or use Adobe Gamma to load the monitor profile that came with the monitor.

If, OTOH, you are happy to use an unreliable profile then I suppose you could say it worked. But then, what would be the point?

Strange – that’s what I thought I said.
Since the original question was about getting the sliders to work, it was worth pointing out that they SHOULD work. There were a few posts suggesting that they would not work when you use an LCD monitor. As to the quality of the profile, it’s worth a try despite what Adobe say. I tried it for 2 LCD screens and found that one made a pretty bad profile (though no worse than the one that came with the monitor) and the other was usable. It’s worth trying since it should at least get the gamma and colour temperature in the right ballpark. If Adobe Gamma doesn’t help, there’s a free ‘eyeball’ calibrator called Wiziwyg that can work a little better with LCD screens:
http://www.praxisoft.com/pages/products.wiziwyg.html
Of course, a hardware calibration system is the best way although you’re unlikely to get great results with a laptop. The problem that stopped the sliders working in Adobe Gamma would also have stopped the hardware system from calibrating the monitor, however.
H
Hecate
Mar 10, 2005
On Thu, 10 Mar 2005 00:57:38 GMT, "Brian K" <iibntgyea4
wrote:

My profile may not be "reliable" but it’s better than the Dell supplied profile for the 1905FP.
LOL! Somehow, that doesn’t surprise me 🙂

Colour on that monitor wouldn’t be good enough for print anyway.



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BK
Brian K
Mar 10, 2005
The gamma value in the Dell profile is 1.71. Maybe that has something to do with the different colours in Photoshop.

Brian

LOL! Somehow, that doesn’t surprise me 🙂

Colour on that monitor wouldn’t be good enough for print anyway.


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Hecate
Mar 11, 2005
On Thu, 10 Mar 2005 23:12:12 GMT, "Brian K" <iibntgyea4
wrote:

The gamma value in the Dell profile is 1.71. Maybe that has something to do with the different colours in Photoshop.
Almost certainly.



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