[Raspberry Pi 3] - ScreenManager and the 12 transitions

Platform:

• Kivy: v1.9.2-dev0@master
• Raspberry 3
• Official 7" RPI touch screen

App: /kivy/examples/demo/showcase/main.py

Short description: In the showcase demo, testing “Screenmanager” with “Fade Transition” and “Wipe Transition” produces some weird errors.

Fade Transition error:

As you can see from the video below, for every “FadeTransition” transition, the error glGetError 0x502 is thrown in the shell… then, after 12 transitions, a black screen suddenly appears and the folowing warning is shown: [WARNING] stderr: Exception ignored in: 'kivy.graphics.fbo.Fbo.raise_exception' [WARNING] stderr: Exception: FBO Initialization failed: Incomplete attachment (36054)

Kivy log: kivy_16-10-07_3–fade-transition-error.txt Video: https://www.youtube.com/watch?v=lu4Rh55EK1E Screenshot:

Wipe Transition error:

Similarly, for every “WipeTransition” transition, the error glGetError 0x502 is thrown in the shell… then, after 12 transitions, a black screen suddenly appears and the folowing warning is shown: [WARNING] stderr: Exception ignored in: 'kivy.graphics.fbo.Fbo.raise_exception' [WARNING] stderr: Exception: FBO Initialization failed: Incomplete attachment (36054)

Kivy log:kivy_16-10-07_8–wipe-transition-error.txt Video:https://www.youtube.com/watch?v=GWGgR7etw5w Screenshot:

[Neex101]

Hi, just putting my hand up as another dead-in-the-water Pi user (3B+, Rasbian Stretch Lite, Kivy).

[frankgould]

I was experiencing this same shader link problem and with the help of others was able to determine a memory leak in one of the kivy modules that has been fixed. If you can pull the latest kivy master files, you can test to see if this latest version solves this issue. For more information about a repetitive glGetError 0x502 messages, reference #5581. This revision should also fix #4542.