Photoshop CS5 problem - help needed

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Adrian
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Hi all,

for the last few days I have a very annoying problem in PS CS5. Every photo I open I get those black artefacts. When I save the file and open for example in Windows Viewer they are not there. Only in Photoshop. See screenshot below

29386292.jpg


As you can imagine, it is very annoying and I can't work.

My photoshop is updated to the newest version. I use Dell u3011 as my main monitor. My GPU is Gigabyte 7970 with the newest 13.1 drivers.

I tried changing my colour working space from PRO Photo to everything else with no result. I tried converting photos to different colour space, no luck. Eveytime I open a photo in PS I get those artefacts to various degree. Some photos more some less.

In the example above, it is JPG I worked on previously (when I still not had that problem) saved in sRGB and opened in PS as sRBG.

As I mentioned, if I save the file with those artefacts, they are not there when I view them in any other program.

Please help
 
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From the Navigator view it almost looks as if you have applied a vignette and used dissolve as the blending option

I have not seen anything like it before and have just spent a while looking for warning where there is banding, learned more about the histogram options than I ever knew before but no nearer having any idea what your problem is. It is the same areas with each image
(PS largest image for forum should be 1024 on longest side)
 
It happens generally in areas where I see extended colour gamut. When I work on a photo in Pro Photo colour space and then convert it to sRGB. It happens in the areas where I see differences in colour when converting.

BUT

it doesn't happen when converting or after. It happens regardless of colour space. It is hard to explain, but files that were ok when editing and are already converted to sRGB, now open like that in Photoshop. Same as the file in the example screenshot. Finished long ago, opened today and those weird black dots are all over.

Other files have them now too, more or less of them, but they are there.

I will try reverting to an older GPU driver to see if it is any better.

I cant fix the size of the sceenshot at the moment, because Im now posting from my phone. I'll fix it tonight.
 
It is difficult to describe the problem in order to search for it , nearest I have found so far is

Problem: Photoshop displays weird lines, squares or other artifacts
Solution: If updating your video card drivers doesn't help then you will have to disable OpenGL Drawing from Edit->Preferences->Performance
 
I agree, difficult to google problem. I too came across the suggestion to try changing video driver. Though I've not found the suggestion to disable OpenGL. Just tried it and it worked. Thanks so much for your help, Christine.

Also took this screenshot of close-up of the black dots on another picture, before disabling OpenGL, so I might as well post it here.

ps2ig.jpg


EDIT: I'm sure it is something to do with graphics driver though. I always had OpenGL set to Advanced and never had a problem. I just changed it to 'Basic' and it also cures it (on Normal I have the artifacts).
 
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I have no idea what causing it too. It must be some sort of graphical glitch in the new AMD graphics drivers (at least this is what I suspect). I am pleased I got rid of it though and that it was as simple as changing one setting in Photoshop. I can work in PS once again :)

Thanks again :thumbs:
 
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