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Fixed in 2017.2.0f3
Fixed in 5.4.X, 5.5.X, 5.6.X, 2017.1.X
Votes
21
Found in
5.6.0f3
Issue ID
902650
Regression
Yes
[iOS][Metal] GPU Hang Error (IOAF code 3) in Xcode Console
Errors appear in the Xcode Console when User's project is run on iOS:
2017-04-19 12:55:18.131719+0300 KneeViewer[346:45705] Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Error (IOAF code 3)
Steps to reproduce:
1. Open User's attached project
2. Make sure the Graphics APIs is set to Metal
3. Run on iPad
Result: Errors appear in the Xcode Console: 2017-04-19 12:55:18.131719+0300 KneeViewer[346:45705] Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Error (IOAF code 3). iPad screen is black.
Reproduced with: 5.6.0f3, 5.6.0p2
Not reproduced with: 2017.1.0b1 (due to errors in the Console), 5.5.3f1 (works as expected).
Tested with:
iPad Mini 2 | iOS10.3.1 | reproduced
iPad Mini 2 | iOS10.2.1 | not reproduced
iPad Mini 4 | iOS9.3.2 | not reproduced
iPad Pro | iOS10.2 | not reproduced
iPhone 6 | iOS10.3.1 | not reproduced
iPhone 6S | iOS10.3 | not reproduced
Workaround: change graphics API to OpenGLES2 or OpenGLES3.
Note: the issue only reproduces on Metal.
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ev3d
Jun 02, 2017 04:25
Having this issue on 5.6.1f1
frg_kova
Jun 01, 2017 00:51
can confirm not using AA fixes it on metal in my case
jasonnk
May 22, 2017 07:45
This was fixed for my repro in previous comment on 5.6.1p1
jasonnk
May 15, 2017 11:33
I found I could repro this problem on 5.6.0f3 and 5.6.1f1 with iPhone 5S running iOS 10.3.1 but couldn't repro with a 5S running 9.3.2. Turning off anti-aliasing on the RenderTexture we were using on the problematic device as zilppuri suggested is a possible workaround while still using Metal.
greg-harding
May 14, 2017 23:50
Updated to Unity v5.6.1f1. No post effects, Metal still crashing our iOS devices (iOS 10.3.1, iPhone 5S, iPad Air).
christiancrt
May 08, 2017 23:16
Tested with 5.6.0p4. The bug ist still present. Update: I was able to construct a simple post-effect that does not stop the rendering, so things seem to be a little more complicated than expected. With others, the screen does not get black but keeps the framebuffer in combination with some flickering. I consider this a rather severe bug for iOS. The only solution is to disable post effects for iPad air 2, iPad mini 2 & 3 and tvOS in general, which is a really really ugly and unpleasant fix.
Amesh
May 04, 2017 23:11
Happens on an iPad Mini 3 for us. Please fix this.
kristian-kjems
May 01, 2017 18:31
For us this happens on iPad Air 2 and Apple TV Gen 4 which both have some variant of A8 chip
Zilppuri
Apr 28, 2017 17:02
The game doesn't hang if I switch off Anti-aliasign. Seems this is a way to circumvent the issue for now - with a loss in graphical quality.
Thompson11
Apr 28, 2017 10:56
Switching to OpenGLES3 fixed this problem for Ipad but Iphone6 running iOs 10.3 has the same problem.