Why is PS gradient not smooth and displaying as a noise background on mac?

Question

Hi, I need help. A full purple to transparent gradient is displaying exactly like a noise background in the poster I'm handling

Is this a driver, graphics card issue or an issue with photoshop itself?

When I export it out as png and jpg, the noise is still there.

My system

macOS High Sierra version 10.13.4

iMac (21.5-inch, Late 2013)

Processor 2.7 GHz Intel Core i5

Memory 8 GB 1600 MHz DDR3

Graphics Intel Iris Pro 1536 MB

piku2rei · Accepted Answer

Hello, please post a screen shot with the layers panel showing of a file when you draw the gradient.

Are you in RGB color mode, 8 or 16 bits?

Hi! It is in RGB mode 8 bits. I think it is a glitch in PS or could possibly due to my ram? Always low in memory.

The gradient is back to smooth when I tried today with a new document and a new layer in the same file without restarting PS. I always put my mac on sleep mode when not in use

Thank you all for your help! Really appreciated it. @D Fosse @davescm @c.pfaffenbichler @PECourtejoie

D Fosse · Answer

That looks like "Dissolve" blend mode, change it to Normal.

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