Your mac lacks quartz extreme acceleration which is required for video output

Do you see the words "Safe Boot" on the login screen when you start up? Nov 21, 3: Boot into Recovery by holding down the key combination command-R at the startup chime.

Release the keys when you see a gray screen with a spinning dial. You don't need to erase the boot volume, and you won't need your backup unless something goes wrong. Feb 13, Sep 27, 3: Communities Contact Support.

Sign in. Browse Search. Ask a question. User profile for user: Does anyone know how I can fix this? What my screensaver looks like using the stock savers. More Less. All replies Drop Down menu. Loading page content. I have used that string on three different laptops with the cpu and video works correctly on all using that string. I know this is old, but I want to thank you for your find.

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• Activate Quartz Extreme on PCI Macs - Mac OS X Hints.

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"Quartz Extreme Acceleration not availabl… - Apple Community

Sign in with Twitter. Posted March 3, I have screen resolution with champlist, but no acceleration. My specs: Share this post Link to post Share on other sites. Can you provide some hardware information?

What strings did you use? DSDT present? Sorry, still had another topic in mind Thanks for the link.

Enabling Quartz?

You could try other strings, there is a list somewhere, forgot the topic, so bumping. Posted March 4, Posted March 5, Thank You arthur-pt. Posted November 11, Create an account or sign in to comment You need to be a member in order to leave a comment Create an account Sign up for a new account in our community. Register a new account. Sign in Already have an account?

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Sign In Now. Similar Content. As now all is working except it, and i'd like to get it working. How can I solve this? My Graphics Doesn't Work! Hi, Please help me to enable and use hd with Mojave. I know that I can install some. But it always show an err msg up. Thanks for helping. I do photo and video editing in the Adobe suite regularly and have been eyeballing the performance of the latest MBP models.