Is your Illustrator crashing or your rendered artwork appears jagged or you receive an error messaging indicating that GPU features are unavailable? Try these solutions.
Do this first: Update your GPU card device drivers.
See this troubleshooting article on updating device drivers: Illustrator GPU Performance | Driver Updates. Most GPU card issues are resolved when device drivers are updated to the latest versions.
Possible causes: Illustrator may encounter an object or artwork in the document that causes the GPU to stop working for the document.
Does the error persist? Send us the sample file to investigate further.
Cause: With laptops that have an on-board graphics card (integrated GPU) and an additional (add-on GPU), users are reporting that Adobe Illustrator does not pick the available add-on GPU. Illustrator defaults to the integrated GPU. When launched, Adobe Illustrator uses the same hardware that drives the laptop’s display. If your add-on GPU is not rendering the laptop’s display, Illustrator will use the integrated GPU.
Possible solutions: When you have an add-on GPU, to use GPU Performance features in Illustrator, ensure that the add-on GPU powers all the display-related functionality on your laptop.
Important consideration: Using the add-on GPU device causes power consumption to rise and significantly reduce battery life while operating on battery power. This will reduce the period of time available for the laptop to function before needing to find a power source.
Press Cmd/Ctrl + E to switch to working in CPU Preview mode so that you can continue using Illustrator. However, do send an email to Adobe (email@example.com) to troubleshoot further.