Photoshop 2019: Clone stamp lag with in Photoshop with Windows 10 and Wacom tablet

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  • Updated 4 weeks ago
  • (Edited)
With the 2019 update, Photoshop seems to lag badly with Clone Stamp on Windows 10 64-bit, using a Wacom Tablet (Intuos Pro L with Pro Pen).

Lag is possibly not quite the right term... it kind of does a spot as you click but then as you drag the pen no more cloning happens. You can do another spot by tapping again but drag gives you no more 'ink'. Doesn't happen immediately - takes a minute or so usually to occur.

Weirdly alt-tabbing away and back completely clears it, for a while at least.

Looking at task manager, it doesn't look like it's using the CPU (roughly 10%) or GPU (up to 20%) particularly intensively.

It does not appear to be the same thing our Mac users are experiencing, which is the issue documented elsewhere on here, which is cleared by hiding the rulers.

Using the latest version of PS (20.0.0), Windows 10 Pro x64 build 1803, Nvidia 416.81 driver; system spec - GTX 1060 6GB; 32GB RAM, Intel i7 6700.
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mhasteley

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  • frustrated

Posted 4 weeks ago

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David Tristram, Employee

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Does this problem occur in normal canvas tool use or is it in the content aware selection workspace?
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mhasteley

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Hi David, it's on the normal canvas. I've not tried out the content aware selection workspace (it's always been too slow for quick selection scenarios and too inaccurate where perfection is necessary).

I think (think) though, that I've got this licked...

Because, to get my Wacom tablet to operate the way you'd expect it to work (as in, how the Wacom Tablet preferences determine, rather partly that and partly what Windows Ink decides - which layers click and hold for right click and weird animated cursors on top, among other things) is incredibly fussy - and takes about 5 different settings to be changed, in two different windows settings apps (new control panel and old control panel); I would just disable Windows Ink from inside the Wacom preferences app and be done with it.

That, though, meant that Photoshop won't do pressure sensitivity at all, unless you enabled, with PSUserConfig.txt:

# Use WinTab
UseSystemStylus 0

Once you did, in CC 2018 and previous releases, everything would work perfectly. With 2019 though, not so much. Whatever's changed in the interplay between Windows Ink, Photoshop and Wacom with this release, means that you have to use Windows Ink now to avoid this sticking bug.
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David Tristram, Employee

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great, good information.  I agree, 3rd party tablet setup and capabilities are fussy and spread out.  Thanks for continuing to 'fuss'.  I will take a look at it and see if there is a better 'native' solution.  
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mhasteley

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Hmm - plot thickens. This works on my machine at work but on my - pretty similar, though not identical setup at home (Intuos 5 M and GTX 1080 are the big differences) can't get pressure sensitivity to work in the same way. The only way Photoshop'll see the tablet as pressure sensitive is using the PSUserConfig setting.
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Chad Rolfs, Employee

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Matt,
By chance do you have Rulers on?  If so, does turning them off fix the lag?
Chad
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mhasteley

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No - the rulers bug doesn't seem to affect Windows, just the MacOS version so far as I can tell.