New Kivy user here...
I'm having an issue with Kivy running in Bionic Ubuntu. Simple Hello World application throws a segmentation fault. The window pops on the screen of the device with a partial draw: frame and titlebar but with no background and immediately disappears with a segmentation fault in the kivy console output.
My installation is:
- Python: 2.7
- OS: Ubuntu - Linux bionic-xfce 4.9.88-5-boundary-14b
- Kivy: 1.10.1
- Kivy installation method: sudo apt-get install python-kivy from ppa:kivy-team/kivy
- Platform: Nitrogen6x Quad-2Gb from Boundary
Python:
import os
print(os.path)
from kivy.app import App
class MyApp(App):
pass
if __name__ == '__main__':
MyApp().run()
I initially had an issue with "Unable to find any valuable Window provider". I had to add several of the required packages that did not load (mostly libsdl related), then ran glxinfo and used the last id (0x16a) to update the environment:
export SDL_VIDEO_X11_VISUALID=0x16a
This moved me past the "no valuable Window" errors, but still no joy. Now it seg faults.
My Kivy log shows:
<module 'posixpath' from '/usr/lib/python2.7/posixpath.pyc'>
[INFO ] [Logger ] Record log in /home/ubuntu/.kivy/logs/kivy_18-08-06_12.txt
[INFO ] [Kivy ] v1.10.1
[INFO ] [Python ] v2.7.15rc1 (default, Apr 15 2018, 21:51:34)
[GCC 7.3.0]
[INFO ] [Factory ] 194 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_gif (img_pil, img_ffpyplayer ignored)
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600
[DEBUG ] [App ] Loading kv <./my.kv>
[INFO ] [Text ] Provider: sdl2
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: sdl2(['window_egl_rpi'] ignored)
[INFO ] [GL ] Using the "OpenGL" graphics system
[DEBUG ] [GL ] glShaderBinary is not available
[INFO ] [GL ] Backend used <gl>
[INFO ] [GL ] OpenGL version <2.1 V6.2.2.93313>
[INFO ] [GL ] OpenGL vendor <Vivante Corporation>
[INFO ] [GL ] OpenGL renderer <Vivante GC2000>
[INFO ] [GL ] OpenGL parsed version: 2, 1
[INFO ] [GL ] Shading version <2.1.0 >
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <8>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImageSDL2 ] Load </usr/lib/python2.7/dist-packages/kivy/data/glsl/default.png>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[DEBUG ] [Resource ] add </usr/share/fonts> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/truetype> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/truetype/ubuntu> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/truetype/dejavu> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/truetype/freefont> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/truetype/noto> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/cMap> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/X11> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/X11/misc> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/X11/util> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/X11/encodings> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/X11/encodings/large> in path list
[DEBUG ] [Resource ] add </usr/share/fonts/cmap> in path list
[DEBUG ] [Resource ] add </usr/local/share/fonts> in path list
[DEBUG ] [Resource ] add </usr/lib/python2.7/dist-packages/kivy/data/fonts> in path list
[DEBUG ] [Base ] Create provider from mouse
[DEBUG ] [Base ] Create provider from probesysfs
[DEBUG ] [ProbeSysfs ] using probesysfs!
[INFO ] [Base ] Start application main loop
[INFO ] [GL ] NPOT texture support is available
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/dist-packages/kivy/data/images/defaulttheme.atlas>
[DEBUG ] [Atlas ] Need to load 1 images
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/dist-packages/kivy/data/images/defaulttheme-0.png>
[DEBUG ] [ImageSDL2 ] Load </usr/lib/python2.7/dist-packages/kivy/data/images/defaulttheme-0.png>
Segmentation fault
Q: what should I look for next? Is there any additional information I can provide that might help someone point me in the right direction? Seems like I'm really close but thinking it's a GL or sdl issue since I had to load packages that didn't seem to come in the distribution?
Thanks in advance.
