264      iPhone_iPad_Mac_apple

Discrete GPU from AddressBookSourceSync

Hi! I've noticed some rather poor battery life on my mid-2014 retina MBP recently, and it turns out that the AddressBookSourceSync service is forcing the laptop to use the discrete GPU. The problem was revealed by running the gfxCardStatus app.

I've tried quitting the process, but it always restarts, and I currently have no way of forcing the laptop to use the integrated graphics card. I'm currently syncing my contacts app to Gmail only.

Although I only uncovered the source of the problem after upgrading to High Sierra, I've experienced battery life issues for some time now, so I believe this problem has been going on since before the upgrade.

Thanks in advance for any help you can give!

Hi again,

I was able to resolve the issue through some troubleshooting. It turns out that syncing Google contacts with the built-in Contacts app creates a constant sync scenario that engages the discrete GPU non-stop. Hopefully this bug will be fixed in a future MacOS update.

Hi again,

I was able to resolve the issue through some troubleshooting. It turns out that syncing Google contacts with the built-in Contacts app creates a constant sync scenario that engages the discrete GPU non-stop. Hopefully this bug will be fixed in a future MacOS update.

最後更新：2017-10-06 22:28:18

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