PHOTOSHOP - Image corruption during zoom/preview rescale

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  • Updated 3 years ago
  • (Edited)
Since the most recent update to the CC cloud software, raw .NEF files are sometimes displayed corrupted. The effect is that of a jigsaw with blocks of the image placed in the wrong section and other areas totally black. As I rescale the image by zooming out, the corruptions change with the incorrect pieces moving around the frame until it become the correct image when zoomed out fully, with the image quite small on the screen. Zooming back in again recreates the problem with the image corruptions appearing in the same place. The original file appears to be unaffected.
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Leon Neal

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Posted 4 years ago

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Ian Geddes

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Is it in PS?
If so, is it similar to my problem? - http://feedback.photoshop.com/photosh...
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Leon Neal

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Yes, it certainly is! Nice one. I'm getting both black and white blocks over the picture with the remaining areas being parts of the image but in the wrong place.
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Chris Cox

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That's a video card driver issue.
On Windows, update the video card driver from the GPU maker's website.
On MacOS, these issues are common on MacOS 10.10, and Apple is working on solutions.
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Ian Geddes

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Prior to this issue originally occuring the video card driver was up to date. I have the Nvidia Geforce Experience application installed which checks for updates daily. I have since tried turning off GPU usage (edit > preferences > performance > uncheck "Use graphics Processor"). This seemed to work but now after 5 days the problem has just re-occurred.
I appreciate this may be related to the video driver but I'm not sure what I can do to fix this issue if my drivers are up to date.
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Chris Cox

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If the driver is up to date, then there is a bug in the current driver - and you need to contact Nvidia so they can get more information to debug the driver.
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Ian Geddes

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I am still experiencing this issue but I think I may have isolated the circumstances under which it happens.
I am running Windows 7 64 bit (all my drivers are up to date) and use Camera Raw (V9.0) to make adjustments to my raw files before handing them through to PS. Once in PS everything seems ok regarding zooming – no white squares.
But if I then go back into Camera Raw FROM WITHIN PS (Filter > Camera Raw Filter) and make any adjustments in the Basic panel e.g. adjust clarity and then return to PS the white squares appear when zooming (usually at 66.6% and above).
Camera Raw 9.0 uses GPU acceleration (introduced I believe at the last CC update which is when my problems started) so I tried unchecking “Use Graphics Processor” in the Camera Raw preferences. After I did that I repeated going back into Camera Raw from within PS, made some adjustments in the Basic panel and handed back to PS. This time the white squares did not appear. If I then checked “Use Graphics Processor” and repeated the above using the same image file the white squares appeared when using the zoom tool.
So, for me, the issue seems to only occur if I go back into Camera Raw (with “Use Graphics Processor” checked) from within PS and make adjustments using the Basic panel. If I make adjustments in any other adjustment panel in Camera Raw – say add a vignette then the white squares do not appear back in PS if I use the zoom tool.
With “Use Graphics Processor” checked I get the problems, having it unchecked and I cannot get the white squares to appear.
I have run through the above scenario on several different image files and the results are the same – with “Use Graphics Processor” checked in Camera Raw the white squares appear if I go back into Camera Raw from within PS, unchecked and they do not. So, unchecking “Use Graphics Processor” sems to be the answer.
If anyone else experiencing this issue could check out my findings that would be great – maybe my findings will help Adobe identify why this is happening and how to fix it.
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Chris Cox

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Hmm, it is possible that something done in the ACR GPU code could cause problems in Photoshop afterward. We haven't seen that ourselves, that I know of, but it is possible.
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Ian Geddes

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Thanks for responding - is it possible that you would be able to investgate this possibilty further?
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Chris Cox

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The ACR team is already investigating a lot of GPU issues. And we haven't seen this - so it could be specific to your video card model and driver version. They'll investigate when they get a chance, but there's no telling if it will reproduce or not.

In the meantime, make sure your video card driver is updated from the GPU maker's website (not Microsoft or a system builder).
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Ian Geddes

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Will do - in fact the Nvidia driver (directly from Nivida website) has been updated again since I first reported this issue so it has now happened with two driver versions.