Photoshop: Not repainting the screen during any tool use

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  • Problem
  • Updated 9 months ago
  • (Edited)
Whenever I use any drawing/brush-type tool in Photoshop, nothing actually updates the window contents until I do something like zooming in and out of the image or the like. As such, my actual brush strokes don't appear as I'm making them, making it pretty much impossible to do anything at all. This is incredibly frustrating.

It started happening when I upgraded to CC 2019, but I tried completely uninstalling it and going back to CC 2018 and it's still happening - even CC 2017 (which worked great) has this problem now.

I'm on a late-2017 iMac running the latest macOS Mojave (10.14.2) and I don't have any weird custom drivers or the like. And Photoshop is the only program having this issue. Other drawing programs (such as Pixelmator and Krita) are fine, although Illustrator seems to have this issue too so I'm thinking it's something to do with a common Adobe library.

I've tried completely removing all of my Adobe preferences (from my Library directory, in both Preferences and Application Support), but even with everything back to defaults, regardless of Photoshop version, drawing simply doesn't work. This is also whether I use my mouse or my Wacom tablet (an Intuos, not one with a screen). I've also tried turning off all GPU acceleration within Photoshop, which didn't help either.

I'm getting incredibly frustrated by this and I'm unable to actually use Photoshop to do anything right now. Does anyone have any ideas of other things to try?

Additional things I have tried:

  • Used the Creative Cloud Cleaner to completely uninstall everything CC-related. Didn't help.
  • Deleted every single Adobe- or Photoshop-related file in my ~/Library directory. Didn't help.
  • Created a new user account to try running Photoshop under. This one was able to run Photoshop just fine. Which tells me it's something wrong in my user account - but what?
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fluffy

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  • frustrated

Posted 10 months ago

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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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It could be an OS/driver setting in your user account outside any of the Adobe preferences causing the problem. User accounts can often get damaged updating the OS or migrating a user from one computer to another. (They use the same migration tech).

Might be time to do some spring cleaning and move to a clean user account.
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fluffy

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The thing is the user account is also fairly new (just over a year old) - as a matter of course I only move my files over, not my settings et al when I set up a new computer, specifically because of these sorts of problems.

I'd rather not have to do the New User Account Fandango if I can avoid it, but if nothing else works that's what I'll have to do. I see it as a last resort though.
(Edited)
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fluffy

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This has now started happening on my laptop as well. It seems very unlikely that the same obscure setting issue would turn up on two separate computers without there being a problem in Photoshop itself.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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OK, what you describe doesn't sound like a common issue, but let's try this. There is a known issue with lag with painting/cloning on Mojave. There's an update coming out very soon, but you can try this workaround in the meantime: https://helpx.adobe.com/photoshop/kb/photoshop-and-macosmojave.html#Penpressuredoesnotworkandbusycur...
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fluffy

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This sounds like a totally different issue, and anyway I ended up migrating to new user accounts on both affected machines and it's working for now.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Ok. Let me know if it comes back and we’ll try and dig in more deeply.