Photoshop CC: Jittery glitches on iMac when using graphics acceleration

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  • Updated 4 years ago
  • (Edited)
Hi, I've been running into a whole host of nasty visual glitches in Photoshop CC, particularly when using selection tools, zooming in and out and scrolling through the layers tool box.

I'm on an iMac on OSX 10.9.5, 8GB of RAM. Photoshop CC was working without issue before today. My guess is that a game I installed updated my graphics drivers.

When zooming in to full screen, the canvas will jitter from side to side before settling.

When using the lasso tool, the selection line will lag behind the cursor as the selection line is drawn. When I release the mouse it does a very irritating jittery effect before becoming a normal selection.

This happens regardless of canvas size, on both my mouse and my Wacom tablet. I've also noticed an odd jitter when scrolling through layers which appeared at the same time.

I've tried closing and reopening, restarting my Mac, reinstalling Wacom drivers and closing all other programs. Photoshop and my graphics drivers are up to date. Is there anything I can do to fix this issue, other than disabling graphics acceleration? Is this a known issue?
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Lisa Rye

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Posted 4 years ago

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Chris Cox

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Yes, that sounds like a graphics driver problem.
Unfortunately on MacOS, drivers are generally updated only with OS updates.
We have seen some driver bugs on 10.9.5 for certain GPU models. Apple is aware of those, and working on solutions - but the solutions would come in a 10.10 update.