Slow performance / undesirable switch to CPU preview
Operating system: macOS Catalina 10.15.7
Illustrator: 26.5
When turning on rulers or editing the artboard, Illustrator switches to CPU preview, which is very slow.
After closing and reopening the file, the gpu preview is active. (If i don't save the file with rulers turned on)
2
votes
Zoltán Kovács
shared this idea
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Brian
commented
Same problem. MacOS Sonoma on M1 Mac mini. As a different user pointed out on a different bug listing it might depend if a vanilla display profile provided by MacOS is used VS a color calibration profile for the screen that I created (I use display cal + I1 display pro).
So for me, for default display profile activating rulers does not break GPU preview but for other profiles it does.