Unity Issue Tracker - [Android] Blit Type "Auto" or "Never" causes Android to show black scene

Fixed in 2018.3

Fixed in 2017.4, 2018.2

Votes

14

Found in

2018.1.6f1

2018.2.0b9

Issue ID

1052530

Regression

Yes

[Android] Blit Type "Auto" or "Never" causes Android to show black scene

Mobile

Jun 24, 2018

To reproduce:

1. Download attached project "VRUnity2018-2b9.zip" and open in Unity
2. Open "SampleScene" scene
3. Set Android platform
4. Go to Player Settings > Resolution and Presentation and set Blit Type to "Auto" or "Never"
5. Run logcat
6. Build and run the project on an Android device
7. Observe that Build shows a black screen and there is no Unity splash screen

Notes:
- Logcat is shared in the comments section
- This issue is reproducible only on Android devices
- This issue is not reproducible in iOS devices
- This issue is not reproducible in Windows and OSX Standalones
- This issue is not reproduced in Editor
- Workaround: Switching to Blit Type to "Always" fixes the problem.

Devices:
- Samsung Galaxy S9, OS: 8.0.0, CPU: arm64-v8a, GPU: Mali-G72 - Reproduced
- Google Pixel 2, OS: 8.1.0, CPU: arm64-v8a, GPU: Adreno (TM) 540 - Reproduced
- iPhone 7, iOS: 11.2.6, CPU: A10 - Not Reproduced

Reproduced on Unity 2018.1.6f1, 2018.1.7f1 and 2018.2.0b10 and 2018.3.0a3
Not reproduced on Unity 2018.1.5f1
Regression on Unity 2018.1.6f1

Comments (11)

DogDuck

Jun 19, 2019 12:17

same problem in version 2018.4.1f1
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Un4GivN_X

Oct 17, 2018 18:54

I just spent almost a day trying to solve this issue. Following this thread, I started by changing the blit type to never/always/auto without any success.

My project is using unity 2018.2.5f1 + Lightweight renderer. Everything was looking fine until I added a hud camera with the clear flag to Depth only.

Then, I installed and tried all the variants on 2018.2.12f1 and 2018.3.0b5. Same blackscreen.

I started to mess around with every properties that seemed related. I've found that LightweightPipeline -> Render Scale is equal to 1 *AND* that LightweightPipeline -> Depth Texture is DISABLED, it fixes the black screen issue.

I don't totally understand the internal issue here but it's a shame that the Render Scale property isn't working :( I was hoping to tweak this value a lot since our vuforia game is draining to much cpu and power.
tlbon

Oct 09, 2018 12:44

happens also without VR. we've had Never on for ages now and suddenly with unrelated changes commit it stopped working. have to put always or black screen on android versions <7.0
khota_sikka

Aug 15, 2018 11:20

In unity 2018.2.2f1 , On building android VR app , It shows only black screen ,Blit Type to choosen Auto , Always and Never, in all three cases same situation kindly resolve urgently
Feelnside

Aug 02, 2018 04:09

The issue is still reproducible. Used Unity 2018.2.1f.
Is't really fixed? Could you please provide the "future version" where it is fixed?
Antony-Blackett

Jul 25, 2018 04:04

It broke in Unity 2018.1.6 and is still broken in 2018.2.0f2 it works fine in 2018.1.5f1
Davee

Jul 23, 2018 14:10

Found in 2018.2.0b9, Fixed in Unity 2018.1?