iOS 9.2 (Beta 1) Bug Fixes, Changes and Performance Adjustments

[Radon87000]

The tweak disable the Gaussian blur (left side) on app switcher. It's like reduce transparency, but only affect app switcher.

It removes all lag from app switcher ?

 

[iOSBry]

Any new SIRI languages in iOS 9.2?

Yes, I added it to the list at the beginning - Arabic was added as a new Siri language.

iOSBry

 

[TL24]

I hope they release the iOS 9.2 Public Beta 1 today, can't stand this 30fps lag on 3D Touch which is an awesome feature to use!

 

[Rubiks0088]

Looking to get a POV on MAC randomization in iOS 9. My understanding was that in spite of iOS8 widening the MAC randomization for the iPhones, it had a negligible impact due to cellular data being turned on along with location services. Can someone provide a view if this has expanded in iOS 9? We are trying to look for an issue on behalf of a client who prefers WiFi analytics over beacons.

 

[Salvor Hardin]

With the 6+, there is the downscaling issue which was an issue even on the "buttery smooth" iOS 8, the hardware itself is capable but has to push more pixel plus downscaling every single image.

Higher resolutions comes at a performance cost downscaling shouldn't, in GFXBench the 6 and 6S should lead over over the 6+ and 6S+ in the fixed 1080p offscreen tests if the constant downsampling process was hurting GPU performance yet this doesn't seem to be the case. If the A8 and up have a hardware scaler much like most modern GPU and game consoles have then there shouldn't be any performance penalty.

 

[sbailey4]

https://forums.macrumors.com/threads/ios-9-2-beta-lag-post.1932917/

You know you can edit your posts yes?

 

[sbailey4]

While I appreciate your proactive-ness, is it wrong for people to report performance improvement (in term of animation and lag) here?

Oh its been "reported", and reported and reported and reported reported and reported and reported reported and reported and reported reported and reported and reported reported and reported and reported reported and reported. Thats the point, the whole thread is full of lag and stutter arguments. There are others things to iOS than just the animations and whether they stutter for 1/4 of a second or not.

 

[sbailey4]

Different standards. Some people value stability more than smoothness, others value smoothness more than stability. Let everyone decide for themselves what they feel is important.

LOL "my phone locks up and reboots constantly but at least it does it so smoothly" "I know your iOS 9 devices work great and are stable but you have a 1/4 second more delay than if on iOS 8." Wow never would have thought of that logic. To each his own though.

 

[iOSBry]

For those of you that are interested, I've been submitting bug reports for each instance/type of lag/stuttering/dropped frames in iOS that I encounter with detailed steps to reproduce (where I can) and have six reports where engineering has asked that I enable stackshot logging, reproduce the issue and then send them the logs.

Here's hoping they get to the bottom of these issues!

iOSBry

 

[Dephibio]

So there are no improvements with iOS 9.2 beta 1 on iPhone 6?

 

[DNichter]

Just wanted to throw in my two cents. 9.2 beta on my 6S is much smoother. Seeing improvement where I was seeing lag in all areas, but we aren't there yet.

 

[bschjelde]

iOS 9.2 Public beta 1 is out now

 

[TL24]

iOS 9.2 Public beta 1 is out now

Yup just saw that... I'm on the road so I can't download it just yet =(

 

[Knowlege Bomb]

Another thread completely lost to the lag/stutter crew.

Is just noticed something,Ever since upgrading to 9 my iPad sound effects have become low.I can barely hear the keyboard keys and the lock sound.Anyone know a fix?

I updated last night and now I have NO sound for notifications. Even if I go into settings to switch my text alert I get no sound when switching between the options like I'm supposed to.

I was also having issues with the Bluetooth in my car this morning. One minute it was fine and the next it was popping on and off every couple of seconds. Wouldn't stay connected long enough to even start playing music.

 

[C DM]

iOS 9.2 Public beta 1 is out now

If that's the case it's somewhat surprising that there are no threads or articles about it here so far.

 

[Cakefish]

Awesome, hopefully it fixes the stutter that remains in 9.1. Will impact my decision whether to return Air 2 in favour of Pro or not.

 

[Radon87000]

Another thread completely lost to the lag/stutter crew.

I updated last night and now I have NO sound for notifications. Even if I go into settings to switch my text alert I get no sound when switching between the options like I'm supposed to.

I was also having issues with the Bluetooth in my car this morning. One minute it was fine and the next it was popping on and off every couple of seconds. Wouldn't stay connected long enough to even start playing music.

I cant fix this problem.My Air 2 sounds very muffled.I can barely even hear the keyboard keys

 

[C DM]

I cant fix this problem.My Air 2 sounds very muffled.I can barely even hear the keyboard keys

Have you tried some sound related settings in the accessibility section of settings? Like just enabling mono sound and disabling it again, and/or doing something similar for the few other sound related options? I've had some weird things happen with sound (basically distorted/muffled sound) after some iOS 8 updates, and after looking around online one of the things I came across which surprisingly ended up doing the trick was enabling and disabling some of those settings (the mono sound one in particular).

 

[duffman9000]

Higher resolutions comes at a performance cost downscaling shouldn't, in GFXBench the 6 and 6S should lead over over the 6+ and 6S+ in the fixed 1080p offscreen tests if the constant downsampling process was hurting GPU performance yet this doesn't seem to be the case. If the A8 and up have a hardware scaler much like most modern GPU and game consoles have then there shouldn't be any performance penalty.

One of the most annoying bugs in iOS 8 is where I could see what appeared to be downscaling. Example: iMessages opens and I can see the initial draw at full resolution and then I see it "snap" into place to fit the screens actual resolution.

This happened in other Apple apps as well. I don't see it happen anymore, but I still saw alignment issues in iOS 9.1. I always wonder if these issues are caused by having to downscale.

 

[Cakefish]

The black screen bug regarding dynamic wallpaper is fixed. Too early to comment on animation stuttering and whether it performs better than 9.1.

(Air 2)

 

[sonsin]

News App is now available in Canada on my 6+. It just appeared here after upgrading to PB1. Unfortunately the same didn't happen with my Mini 2

 

[duffman9000]

For those of you that are interested, I've been submitting bug reports for each instance/type of lag/stuttering/dropped frames in iOS that I encounter with detailed steps to reproduce (where I can) and have six reports where engineering has asked that I enable stackshot logging, reproduce the issue and then send them the logs.

Here's hoping they get to the bottom of these issues!

iOSBry

I tired of submitting bugs. The response is usually did you set up as new?

 

[Prabas]

The black screen bug regarding dynamic wallpaper is fixed. Too early to comment on animation stuttering and whether it performs better than 9.1.

(Air 2)

If it's too early to talk about stuttering, then there's no improvement. If there's no stuttering - improvement, otherwise there's nothing to talk about in this beta.

 

[permar]

News App is now available in Canada. It just appeared here after upgrading to PB1

Same in Sweden. But only on my Air2, not on 5S

 

[iOSBry]

I tired of submitting bugs. The response is usually did you set up as new?

It does get old but I'm persistent. Never been asked if I've set up as new but I have several 5S's, one of which I use to set up as new to test for these bugs to eliminate issues with third party apps causing performance problems.

iOSBry