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hankhank10 / music-screen-api

Display the playing Sonos track in real time on an e-ink display - also includes functionality for last.fm
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Dev wont launch #29

Closed rdrivas123 closed 4 years ago

rdrivas123 commented 4 years ago

Weird error:

I got a new 4.0 screen, set it up using the standard setup and then did a git pull It tells me I am up to date, I change to dev (git checkout dev) then run git pull again, it tells me everything is up to date (I figured i would see new files come down)

Now when i reboot I cannot get the app to launch, I have to run: DISPLAY=:0 /usr/bin/python3 /home/pi/music-screen-api/go_sonos_highres.py

This works for me, but once i CTRL+C in the SSH window or if i disconnect, it no longer displays album art. I cant for the life of me figure out why it wont select the display.

When running it without the display command I get the following:

2020-08-04 21:51:55,820 ERROR - Task exception was never retrieved future: <Task finished coro=<main() done, defined at music-screen-api/go_sonos_highres.py:144> exception=TclError('no display name and no $DISPLAY environment variable')> Traceback (most recent call last): File "music-screen-api/go_sonos_highres.py", line 148, in main display = DisplayController(loop, sonos_settings.show_details, sonos_settings.show_artist_and_album, show_details_timeout) File "/home/pi/music-screen-api/display_controller.py", line 35, in init self.root = tk.Tk() File "/usr/lib/python3.7/tkinter/init.py", line 2023, in init self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

jjlawren commented 4 years ago

If you're running from an SSH connection you need to set the DISPLAY environment variable. This is not necessary if you're connected using VNC and open a terminal window from within the GUI.

Does autostart work properly on reboot?

rdrivas123 commented 4 years ago

No, no autostart on reboot.

jjlawren commented 4 years ago

Check the script logs and also ~/.xsession-errors.

rdrivas123 commented 4 years ago

No error in xsession, still get this in the app log:

future: <Task finished coro=<main() done, defined at /home/pi/music-screen-api/go_sonos_highres.py:144> exception=TclError('no display name and no $DISPLAY environment variable')> Traceback (most recent call last): File "/home/pi/music-screen-api/go_sonos_highres.py", line 148, in main display = DisplayController(loop, sonos_settings.show_details, sonos_settings.show_artist_and_album, show_details_timeout) File "/home/pi/music-screen-api/display_controller.py", line 35, in init self.root = tk.Tk() File "/usr/lib/python3.7/tkinter/init.py", line 2023, in init self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable 2020-08-04 22:08:08,208 ERROR - Task exception was never retrieved future: <Task finished coro=<main() done, defined at /home/pi/music-screen-api/go_sonos_highres.py:144> exception=TclError('no display name and no $DISPLAY environment variable')> Traceback (most recent call last): File "/home/pi/music-screen-api/go_sonos_highres.py", line 148, in main display = DisplayController(loop, sonos_settings.show_details, sonos_settings.show_artist_and_album, show_details_timeout) File "/home/pi/music-screen-api/display_controller.py", line 35, in init self.root = tk.Tk() File "/usr/lib/python3.7/tkinter/init.py", line 2023, in init self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

jjlawren commented 4 years ago

This is a general error saying that it's being launched from outside of the GUI. What does your /etc/xdg/lxsession/LXDE-pi/autostart file look like?

rdrivas123 commented 4 years ago

GNU nano 3.2 /etc/xdg/lxsession/LXDE-pi/autostart

@lxpanel --profile LXDE-pi @pcmanfm --desktop --profile LXDE-pi @xscreensaver -no-splash @xset s noblank @xset s off @xset -dpms @sudo /usr/bin/python3 /home/pi/music-screen-api/go_sonos_highres.py

jjlawren commented 4 years ago

Can you try to change the last line to:

@/usr/bin/python3 /home/pi/music-screen-api/go_sonos_highres.py

It may complain about missing dependencies after that, but this script shouldn't need root permissions.

rdrivas123 commented 4 years ago

No dependencies issues, it's working now. As I build more units I will check the info you sent. This one can be closed.