iPhone XS iPhone XS - momentary stuttering after inactivity
- Thread starter justinhill
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justinhill
macrumors member
Interesting... How long did you use the phone fresh before restoring all your data back to it? Is it possible you just didn't notice it?
Only a few minutes but I repeated the swipe several times and I am 100% there was no stutter
[doublepost=1538291910][/doublepost]If you activate the screen recording it stops the stutters.
It seems to be the A12 CPU which throttles
justinhill
macrumors member
@alisex747 I wiped my phone and set it up as a new phone, unfortunately I am still seeing the problem. 
Anyone have any luck with 12.1 beta 2 today?
Anyone have any luck with 12.1 beta 2 today?
Hm, interesting, I've been noticing this too with the animations but hadn't thought much of it, but I can definitely recreate is on my XS as described. I wonder if it has to do with switching between the low-power and high-performance cores after a period of lowered usage.
[doublepost=1538515843][/doublepost]Interesting add on: it doesn't seem to do this if there's an active animation on the screen. Like if I just leave it on the Music app screen with a song playing and the progress bar moving for 10+ seconds, then close the app, no stutter.
Added a post to Apple Communities since I didn't see this mentioned anywhere there: https://discussions.apple.com/thread/8565789
[doublepost=1538515843][/doublepost]Interesting add on: it doesn't seem to do this if there's an active animation on the screen. Like if I just leave it on the Music app screen with a song playing and the progress bar moving for 10+ seconds, then close the app, no stutter.
Added a post to Apple Communities since I didn't see this mentioned anywhere there: https://discussions.apple.com/thread/8565789
Last edited:
mah0
macrumors newbie
Hey,
noticed the same problem on my XS 64GB space grey. Interestingly enough, I just switched to the XS from an XS Max I used for 1 week (was too big for me and no advantages in terms of real estate).
However, my iPhone XS Max does not have such problems, no stutter at all. Same backup, same data, both recovered via iCloud... very weird ...
Temporary workaround for me, reduce motion in settings/accessibility. It’s very frustrating nonetheless. Can’t believe people don’t notice this.
Btw, we should probably open a new threads in the apple forums, otherwise the right persons won’t notice the issue.
mah0
macrumors newbie
This only applies for the homescreen, not for the inapp scroll lag... Ghosh this makes me angry ... spending 1,2K on a phone that stutters. Had several iPhones before and now came from an OnePlus 6. This thing flies ... and it’s android ... remembering the good old days when iPhone performance was a selling point and miles ahead of android ...
MOTiiVHATE`
macrumors regular
12.1 beta 2 doesn’t fix the problem.@alisex747 I wiped my phone and set it up as a new phone, unfortunately I am still seeing the problem.
Anyone have any luck with 12.1 beta 2 today?
It’s becoming beyond frustrating, especially since I charged up my old 6s and it lags a lot less than my XS on iOS 12. I’ve left feedback for Apple, and I encourage everyone else to too. If this post picks up enough steam, hopefully Apple will prioritize the issue. Problem is though, either some people don’t see the frame rate drop, or this problem doesn’t affect all of the new phones.
I agree with you. I am not sure that Apple will address the issue in a next release since :
1) many people do not see it
2) some devices are not impacted
I miss my iPhone X...
MOTiiVHATE`
macrumors regular
Who remembers when the 3D Touch stuttered when iOS 10 came out? I don’t think that was fixed until 10.3. Apple doesn’t seem to put priority on fluid animations, they rather spend resources on emojis...
Same issue with a Xs. Very frustrating coming from a 6s which did not have this stutter with animations and safari scrolling. I bought another Xs to see if it was hardware and it still had it (setup as new phone). Then I went to the apple store and tried the display models. Both Xs and Max had it. I reported it as a bug on Apples feedback page.
MOTiiVHATE`
macrumors regular
Odd that you were able to replicate the problem on the display models. I tried two XS and two XS Max’s at Bestbuy and Target and couldn’t get them to stutter.
I’m curious, were the display models at the Apple Store running the demo mode? My thought is, that if this is software, the demo mode running in the background isn’t allowing the cpu to throttle. The display models I tested were running a demo mode.
How can I tell if they’re running demo mode?
But yeah, I tried multiple times and it was definitely there. My other thought is maybe there was a demo app still running in the background on the units you tried not allowing any throttle to take place.
MOTiiVHATE`
macrumors regular
They had the screen saver playing when not in use. I would assume they would.
Yes, they had the screen saver playing.
MOTiiVHATE`
macrumors regular
Huh, well it’s intriguing that some people do and do not have this problem, and you (and another poster) were able to replicate the problem on display models, but I was not.
MOTiiVHATE`
macrumors regular
Open up your clock app and start the stopwatch. See if the stopwatch running in the background fixes this stutter for you.
Same here. First noticed it massively on Instagram. When swiping pictures forward or back.
It sucks and I think it’s something Software related and at least I hope so