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iOS 8.4 slow wake on iPad Air 2

After upgrading to iOS 8.4, I noticed that there is a 1-2 second delay before the screen turns on after waking it up. This generally happens if my iPad has been locked for a few minutes and I'm certain that this wasn't present in iOS 8.3. Has anyone else noticed this behavior? I'm going to submit a bug report to Apple, but wanted to reach out to the community first...

iMac, Mac OS X (10.7.1)

Posted on Jul 1, 2015 4:07 PM

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Question marked as Top-ranking reply

Posted on Jul 1, 2015 4:46 PM

iPad Air 2 under iOS 8.4 and wake is instantaneous here, whether from the sleep/wake switch or Smart Cover.

174 replies

Jul 9, 2015 5:26 AM in response to OmniFusion

Yes, I am having the same issue with 5-finger gesture. When used, it promptly drops to the springboard, but the icons take about a second to load. I can also confirm this behavior is specific to the gesture, and the icons appear instantly when using the home button. This wasn't an issue prior to iOS 8.4. I performed a clean installation as a new iPad (Air 2) via iTunes (not OTA) to solve this, but to no avail.


As you say, weird.

Jul 9, 2015 6:32 AM in response to ahwman

Hello again to all. A funny thing happened: After updating a whole bunch of apps today and then syncing my iPad on my PC, I noticed that both the lag and the screen rotation issue have somehow disappeared. I've tried to test this by waiting for the iPad to go to sleep and then waking it after several minutes on three occasions earlier this evening and the response to pushing the home button has been noticeably faster each time. And the screen also now rotates as it's supposed to. Hopefully, everything stays this way from here on but we'll see how things will be in the morning.

Jul 16, 2015 2:52 AM in response to ahwman

I'm experiencing the exact same issue with my iPad Air 2 (WiFi) on iOS 8.4. I just upgraded and the wake up lag is noticeable. It feels like the CPU suddenly falls into a deeper Krait-C state. Moreover, if I reduce motion and use the gestures to close an app, the home screen will need 3 seconds to load. With normal motion enabled it's no issue at all. I wish I could go back to iOS 8.3...

iOS 8.4 slow wake on iPad Air 2

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