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parovelb
parovelb
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I have an issue running together a Kivy app and Flask as thread on a RPi2 with a touchscreen. It is similar to the issue mentioned in this post Issues with Kivy on Raspberry Pi 3 with 3.5 in Touchscreen with the difference the touch screen works when running the Kivy app only with no Flask in the background. The Kivy+Flask app for the touch screen works on my notebook but when launching it on the RPi2, just hangs forever. No window pops up, nothing. To exit I have to continuously press CTRL+C and the app loads step by step till finally reach the Kivy app of the touch.

TheTo exit I have to continuously press CTRL+C and the app loads step by step till finally launch the Kivy app of the touch as supposed.

As one reason I have checked the input interface issue mentioned in this post but I guess does not apply to my case.

I have an issue running together a Kivy app and Flask as thread on a RPi2 with a touchscreen. It is similar to the issue mentioned in this post Issues with Kivy on Raspberry Pi 3 with 3.5 in Touchscreen with the difference the touch screen works when running the Kivy app only with no Flask in the background. The Kivy+Flask app for the touch screen works on my notebook but when launching it on the RPi2, just hangs forever. No window pops up, nothing. To exit I have to continuously press CTRL+C and the app loads step by step till finally reach the Kivy app of the touch.

The input interface issue mentioned in this post I guess does not apply to my case.

I have an issue running together a Kivy app and Flask as thread on a RPi2 with a touchscreen. It is similar to the issue mentioned in this post Issues with Kivy on Raspberry Pi 3 with 3.5 in Touchscreen with the difference the touch screen works when running the Kivy app only with no Flask in the background. The Kivy+Flask app for the touch screen works on my notebook but when launching it on the RPi2, just hangs forever. No window pops up, nothing.

To exit I have to continuously press CTRL+C and the app loads step by step till finally launch the Kivy app of the touch as supposed.

As one reason I have checked the input interface issue mentioned in this post but I guess does not apply to my case.

updated with additional clarification of the code
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parovelb
parovelb
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UPDATE -> Output of the notebook:

[INFO   ] [Base        ] Leaving application in progress...
(py2) parovelb@Latitude-E6510:~/Desktop/Python2$ python cs_flask_tft_20191219.py 
[INFO   ] [Logger      ] Record log in /home/parovelb/.kivy/logs/kivy_19-12-19_1.txt
[INFO   ] [Kivy        ] v1.10.1
[INFO   ] [Python      ] v2.7.15rc1 (default, Nov 12 2018, 14:31:15) 
[GCC 7.3.0]
[INFO   ] [Factory     ] 194 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2
Starting Flask app...
 (20301) wsgi starting up on http://0.0.0.0:5000
[INFO   ] [Window      ] Provider: sdl2(['window_egl_rpi'] ignored)
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] Backend used <gl>
[INFO   ] [GL          ] OpenGL version <3.3 (Compatibility Profile) Mesa 19.0.8>
[INFO   ] [GL          ] OpenGL vendor <nouveau>
[INFO   ] [GL          ] OpenGL renderer <NVA8>
[INFO   ] [GL          ] OpenGL parsed version: 3, 3
[INFO   ] [GL          ] Shading version <3.30>
[INFO   ] [GL          ] Texture max size <8192>
[INFO   ] [GL          ] Texture max units <16>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [Base        ] Start application main loop
[INFO   ] [GL          ] NPOT texture support is available

Output of the RPi2:

Output:

UPDATE -> Output of the notebook:

[INFO   ] [Base        ] Leaving application in progress...
(py2) parovelb@Latitude-E6510:~/Desktop/Python2$ python cs_flask_tft_20191219.py 
[INFO   ] [Logger      ] Record log in /home/parovelb/.kivy/logs/kivy_19-12-19_1.txt
[INFO   ] [Kivy        ] v1.10.1
[INFO   ] [Python      ] v2.7.15rc1 (default, Nov 12 2018, 14:31:15) 
[GCC 7.3.0]
[INFO   ] [Factory     ] 194 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2
Starting Flask app...
 (20301) wsgi starting up on http://0.0.0.0:5000
[INFO   ] [Window      ] Provider: sdl2(['window_egl_rpi'] ignored)
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] Backend used <gl>
[INFO   ] [GL          ] OpenGL version <3.3 (Compatibility Profile) Mesa 19.0.8>
[INFO   ] [GL          ] OpenGL vendor <nouveau>
[INFO   ] [GL          ] OpenGL renderer <NVA8>
[INFO   ] [GL          ] OpenGL parsed version: 3, 3
[INFO   ] [GL          ] Shading version <3.30>
[INFO   ] [GL          ] Texture max size <8192>
[INFO   ] [GL          ] Texture max units <16>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [Base        ] Start application main loop
[INFO   ] [GL          ] NPOT texture support is available

Output of the RPi2:

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parovelb
parovelb
  • 157
  • 8

Issues running Kivy and Flask together on Raspberry Pi 2 with touchscreen

Setup

  • Kivy 1.11.1
  • Flask 1.1.1
  • Python 2.7.13

Issue

I have an issue running together a Kivy app and Flask as thread on a RPi2 with a touchscreen. It is similar to the issue mentioned in this post Issues with Kivy on Raspberry Pi 3 with 3.5 in Touchscreen with the difference the touch screen works when running the Kivy app only with no Flask in the background. The Kivy+Flask app for the touch screen works on my notebook but when launching it on the RPi2, just hangs forever. No window pops up, nothing. To exit I have to continuously press CTRL+C and the app loads step by step till finally reach the Kivy app of the touch.

The input interface issue mentioned in this post I guess does not apply to my case.

Output:

[INFO   ] [Logger      ] Record log in /home/pi/.kivy/logs/kivy_19-12-19_5.txt
[INFO   ] [Kivy        ] v1.11.1
[INFO   ] [Kivy        ] Installed at "/home/pi/.virtualenvs/py2/local/lib/python2.7/site-packages/kivy/__init__.pyc"
[INFO   ] [Python      ] v2.7.13 (default, Sep 26 2018, 18:42:22) 
[GCC 6.3.0 20170516]
[INFO   ] [Python      ] Interpreter at "/home/pi/.virtualenvs/py2/bin/python"
[WARNING] [Deprecated  ] Python 2 Kivy support has been deprecated. The Kivy release after 1.11.0 will not support Python 2 anymore
[INFO   ] [Factory     ] 184 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_pil, img_gif (img_sdl2, img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2(['text_pango'] ignored)
Starting Flask app...
 (2950) wsgi starting up on http://0.0.0.0:5000
[INFO   ] [Window      ] Provider: egl_rpi
[INFO   ] [GL          ] Using the "OpenGL ES 2" graphics system
[INFO   ] [GL          ] Backend used <gl>
[INFO   ] [GL          ] OpenGL version <OpenGL ES 2.0>
[INFO   ] [GL          ] OpenGL vendor <Broadcom>
[INFO   ] [GL          ] OpenGL renderer <VideoCore IV HW>
[INFO   ] [GL          ] OpenGL parsed version: 2, 0
[INFO   ] [GL          ] Shading version <OpenGL ES GLSL ES 1.00>
[INFO   ] [GL          ] Texture max size <2048>
[INFO   ] [GL          ] Texture max units <8>
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event5
[INFO   ] [MTD         ] Read event from </dev/input/event5>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event3
[INFO   ] [MTD         ] Read event from </dev/input/event3>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event1
[INFO   ] [MTD         ] Read event from </dev/input/event1>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event4
[INFO   ] [MTD         ] Read event from </dev/input/event4>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event2
[INFO   ] [MTD         ] Read event from </dev/input/event2>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event0
[INFO   ] [MTD         ] Read event from </dev/input/event0>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event5
[INFO   ] [HIDInput    ] Read event from </dev/input/event5>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event3
[INFO   ] [HIDInput    ] Read event from </dev/input/event3>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event1
[INFO   ] [HIDInput    ] Read event from </dev/input/event1>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event4
[INFO   ] [HIDInput    ] Read event from </dev/input/event4>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event2
[INFO   ] [HIDInput    ] Read event from </dev/input/event2>
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event0
[INFO   ] [HIDInput    ] Read event from </dev/input/event0>
[INFO   ] [Base        ] Start application main loop
[INFO   ] [MTD         ] </dev/input/event5> range position X is 0 - 0
[INFO   ] [MTD         ] </dev/input/event5> range position Y is 0 - 0
[INFO   ] [MTD         ] </dev/input/event5> range touch major is 0 - 0
[INFO   ] [MTD         ] </dev/input/event5> range touch minor is 0 - 0
[INFO   ] [MTD         ] </dev/input/event5> range pressure is 0 - 255
[INFO   ] [MTD         ] </dev/input/event5> axes invertion: X is 0, Y is 0
[INFO   ] [MTD         ] </dev/input/event5> rotation set to 0

Any ideas? GIL?