Photoshop CS6: Random displaced glitchy blocks keep appearing on canvas (macOS)

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  • Updated 3 months ago
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It's most problematic on big, big images, like my current project, which is 5000px wide. Random things makes the canvas seem to error out a little bit, but mostly it comes up when I do things with layers--add, delete, make invisible, make visible, rearrange, change opacity, etc. They randomly generate any time I do one of those things. If I draw on an area  with blocks, they vanish, but only around where the brushstroke was made. Sometimes they disappear or reappear depending on the zoom. This is a real problem because it keeps obfuscating the view of where I want to draw.

I've tried googling to no avail. I feel like I'm the only one with this problem.

It's Photoshop CS6 and I'm drawing on a new Macbook Pro with a Wacom Bamboo.


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Laurel Crown

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Posted 3 months ago

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christoph pfaffenbichler, Champion

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Does turning off »Use Graphics Processor« (or whatever it was called in CS6) in the Performance Preferences (Photoshop > Preferences > Performance > Graphic Processor Settings) and restarting Photoshop have any bearing on the issue? 

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Laurel Crown

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Aside from my zoom resolutions being a little more jagged, the blocks have disappeared. Small price to pay for a clear view. Thank you so much!
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David, Official Rep

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Howdy Laurel,

You might want to follow up with your video card manufacturer and see if there's an updated driver.

Hope that helps,
David
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christoph pfaffenbichler, Champion

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Unfortunately this is no proper solution as it invalidates GPU dependent features (like the Rotate View Tool and some Filter acceleration for example) but it indicates possible problems with the GPU driver or the OS.