Kivy on Raspberry Pi/RPiOS Buster Lite

[Peter Bell]

I have a Kivy App running satisfactorily on Raspberry Pi3/ArchLinux (without desktop).  Many thanks to Alexander Taylor for his guidance.

I am now attempting to move the App on to a Pi4 running Buster Lite. I have followed the guide/notes (faithfully, I believe) posted at kivy.org here, particularly the part about compiling sdl2 from source, with the kmsdrm option set.

However, when I run my app, kivy reports that it is 'unable to find any valuable window provider'.

[INFO   ] [Logger      ] Record log in /root/.kivy/logs/kivy_20-07-11_22.txt
[INFO   ] [Kivy        ] v1.11.1
[INFO   ] [Kivy        ] Installed at "/root/.local/lib/python3.7/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.7.3 (default, Dec 20 2019, 18:57:59) 
[GCC 8.3.0]
[INFO   ] [Python      ] Interpreter at "/usr/bin/python3"
[INFO   ] [Factory     ] 184 symbols loaded
[DEBUG  ] [Cache       ] register <kv.lang> with limit=None, timeout=None
[DEBUG  ] [Cache       ] register <kv.image> with limit=None, timeout=60
[DEBUG  ] [Cache       ] register <kv.atlas> with limit=None, timeout=None
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
[DEBUG  ] [Cache       ] register <kv.texture> with limit=1000, timeout=60
[DEBUG  ] [Cache       ] register <kv.shader> with limit=1000, timeout=3600
[DEBUG  ] [Text        ] Provider <pango> ignored by config
[INFO   ] [Text        ] Provider: sdl2(['text_pango'] ignored)
[DEBUG  ] [Window      ] Provider <egl_rpi> ignored by config
[INFO   ] [Window      ] Provider: sdl2(['window_egl_rpi'] ignored)
[DEBUG  ] [Window      ] Provider <x11> ignored by config
[CRITICAL] [Window      ] Unable to find any valuable Window provider. Please enable debug logging (e.g. add -d if running from the command line, or change the log level in the config) and re-run your app to identify potential causes
sdl2 - RuntimeError: b'No available video device'
  File "/root/.local/lib/python3.7/site-packages/kivy/core/__init__.py", line 71, in core_select_lib
    cls = cls()
  File "/root/.local/lib/python3.7/site-packages/kivy/core/window/window_sdl2.py", line 152, in __init__
    super(WindowSDL, self).__init__()
  File "/root/.local/lib/python3.7/site-packages/kivy/core/window/__init__.py", line 981, in __init__
    self.create_window()
  File "/root/.local/lib/python3.7/site-packages/kivy/core/window/window_sdl2.py", line 290, in create_window
    self.get_gl_backend_name())
  File "kivy/core/window/_window_sdl2.pyx", line 110, in kivy.core.window._window_sdl2._WindowSDL2Storage.setup_window
  File "kivy/core/window/_window_sdl2.pyx", line 74, in kivy.core.window._window_sdl2._WindowSDL2Storage.die

[CRITICAL] [App         ] Unable to get a Window, abort.

I have tried the two available settings for the gl driver in raspi-config - G1 Legacy and G2 GL (Fake KMS), but neither option offers an improvement.

If anyone can identify what I've done wrong, or offer advice on how to resolve the problem, I would be very grateful.

The INFO messages are a little confusing - does this:

[INFO ] [Window ] Provider: sdl2(['window_egl_rpi'] ignored)

mean that the sdl2 Window provider is ignored completely? If so, that would explain my problem. How would I prevent sdl2 from being ignored

[Peter Bell]

It seems that no one here has an answer to my problem.
Is it possible to identify the author of this article (https://kivy.org/doc/master/installation/installation-rpi.html) on kivy.org, and contact him/her?

On 14/07/2020 11:41, Peter Bell wrote:

[Peyton Davari]

Peter,

Have you seen this?

https://github.com/kivy/kivy/issues/6413 

Thanks,

Peyton 

--
You received this message because you are subscribed to the Google Groups "Kivy users support" group.
To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/kivy-users/9adfbee7-c257-345d-2766-3f84a35125bf%40bellfamily.org.uk.

[Peyton]

Hey Peter,

Did this help resolve your problem?

Thanks,

Peyton

On Sunday, July 19, 2020 at 1:50:45 PM UTC-9, Peyton wrote:

Peter,

Have you seen this?

https://github.com/kivy/kivy/issues/6413 

Thanks,

Peyton 

On Sat, Jul 18, 2020 at 6:14 PM Peter Bell <pe...@bellfamily.org.uk> wrote:

It seems that no one here has an answer to my problem.
Is it possible to identify the author of this article (https://kivy.org/doc/master/installation/installation-rpi.html) on kivy.org, and contact him/her?


On 14/07/2020 11:41, Peter Bell wrote:

I have a Kivy App running satisfactorily on Raspberry Pi3/ArchLinux (without desktop).  Many thanks to Alexander Taylor for his guidance.

I am now attempting to move the App on to a Pi4 running Buster Lite. I have followed the guide/notes (faithfully, I believe) posted at kivy.org here, particularly the part about compiling sdl2 from source, with the kmsdrm option set.

However, when I run my app, kivy reports that it is 'unable to find any valuable window provider'.

--
You received this message because you are subscribed to the Google Groups "Kivy users support" group.

To unsubscribe from this group and stop receiving emails from it, send an email to kivy-users+unsubscribe@googlegroups.com.