Illustrator suddenly switching to CPU preview, GPU preview greyed out

[Captivating_Radiance5C57]

I have a document with some large images that suddenly switches my view to CPU Preview shortly after opening, or sometimes when zooming. It'll freeze for a moment before switching to CPU, and GPU Preview will be greyed out. I was able to fix this temporarily by switching to Outline, saving, then closing and reopening the file, but it keeps happening regardless. Does anyone know what's causing this, or how to fix it?

[Anubhav M]

Hello @adrianjx,

Thanks for sharing your insights. I have reported this to the product team, and they are investigating it. I will update this thread as I have more info.

Feel free to reach out if you have more questions or need assistance. We'd be happy to help.

Anubhav

[fati_say4049]

change your image color profile to match your color Illustrator profile and mac color profile, for example, if your Mac color profile is sRGB IEC61966-2.1, so should be your Adobe Illustrator and your image color profile is sRGB IEC61966-2.1, boom your problem is solved. 

[konrathink]

Illustrator '24 and '25 still have this issue for me.  It's always after I zoom in really close and then zoom out.  I've been using the '23 version for the past few years without issue.

[adrianjx]

Here are the steps to reproduce it (again):

1. IMPORTANT STEP: Under Preferences - > User Interface -> Canvas Colour -> Change to "White"

2. File -> New Document

3. View -> Show Grid.  NOTE THAT WE ARE STILL IN GPU MODE

4. View -> Outline.  NOTE THAT WE ARE NOW STUCK IN CPU MODE

• This bug is real.
• Happens on a new, blank document, or any document you turn the grid on and switch to outline, with AI prefs Canvas Colour set to White.
• It's repeatable, on multiple machines and multiple MacOS, including latest Sequoia, and latest illustrator: 29.0.1
• It has existed for multiple versions of Illustrator.
• I have plenty of RAM, CPU, GPU, HD space.
• Try it for yourself. Follow the above steps!

[Anubhav M]

Hello @adrianjx,

Thanks for sharing the details. I was able to replicate this behavior on my end. Kindly allow me some time to check this with the team.

Anubhav

[defaultbj1empfe1wqt]

First. If you have a computer that has good enough GPU, CPU and memory and you have not had the issue before....  then you need a new GPU most likely. If it is not the GPU then you need to rebuild the operating system. Happens to me all the time. I rebuild Windows once every three months and it fixes the issue. 

If this happens all the time since the first time using Illustrator then you need a better computer. Illustrator takes a ton of computer to use.