Photoshop CC + Nvidia driver bug: When zooming opaque image, edges are sometimes rendered as transparent

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  • Updated 4 years ago
  • (Edited)
I have noticed a bug in Photoshop CC (version 14.2.1 x64, but probably others too), when in some zoom levels the image edge is drawn as if there was some transparency, when in fact, there is none.

See this screenshot:


Or this video, which captures the same phenomenon:
https://vimeo.com/91392050

I am using latest Photoshop CC on Windows 7 with Nvidia GT 660 (again latest drivers 335.23, but the bug was present with other versions too).

It occurs with any document, can be reproduced by:

- starting PS
- creating new document say 1000x1000 pixels with black background (helps to visualize it better)
- slowly zooming out by dragging - the transparent edge will appear and disappear continuously.

This problem can be avoided by lowering acceleration in Photoshop, more precisely: Setting Edit -> Preferences -> Performance -> Advanced settings -> Drawing mode from "Advanced" to "Basic". But this will somewhat slow down the Photoshop, so a proper fix would be appreciated :)
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vit.kovalcik

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Posted 4 years ago

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Chris Cox

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Let NVidia know about this driver issue -- unfortunately they introduced several bugs with recent driver versions.
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vit.kovalcik

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Thank you! Contacting NVidia was the first thing I did and they sent me to Adobe... I guess the ball is on their side again :) (I have updated their bug report)
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Chris Cox

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The problem is with NVidia's driver - I'm not sure why they would send you to Adobe...
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vit.kovalcik

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So, after adding comments to the NVidia's bug report and escalating it to a higher level technician, I have tested several driver versions (some old one and a newest beta) and the issue was present with each of them.

Eventually, NVidia people have been able to reproduce it with their GPU, but (citation follows) "also reproduced the problem on AMD Radeon HD5700 card, driver version 13.251.0.0, dated Dec. 6th 2013. Likely this is an application bug."

So it seems that the bugs is reproducible on NVidia and AMD graphic cards, which increases the likelihood that it is an issue of Photoshop and not the drivers.
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Chris Cox

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Hmm, not one that I've seen before - but we'll follow up with the GPU guys.
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vit.kovalcik

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Great, thank you! If you would like to me to test anything or be of any other help, just let me know.