trouble running papertty.py

[skywo1f]

File "./papertty.py", line 716, in cli() File "/usr/lib/python3/dist-packages/click/core.py", line 764, in call return self.main(args, kwargs) File "/usr/lib/python3/dist-packages/click/core.py", line 717, in main rv = self.invoke(ctx) File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/lib/python3/dist-packages/click/core.py", line 956, in invoke return ctx.invoke(self.callback, ctx.params) File "/usr/lib/python3/dist-packages/click/core.py", line 555, in invoke return callback(args, *kwargs) File "/usr/lib/python3/dist-packages/click/decorators.py", line 27, in new_func return f(get_current_context().obj, args, **kwargs) File "./papertty.py", line 502, in vnc ptty = settings.get_init_tty() File "./papertty.py", line 394, in get_init_tty tty.init_display() File "./papertty.py", line 246, in init_display self.driver.init(partial=self.partial) File "/home/pi/PaperTTY/drivers/drivers_partial.py", line 69, in init if self.epd_init() != 0: File "/home/pi/PaperTTY/drivers/drivers_base.py", line 184, in epd_init self.SPI = spidev.SpiDev(0, 0) FileNotFoundError: [Errno 2] No such file or directory

[skywo1f]

turns out I had forgotten to enable spi. I am now however getting this issue: vncdotool.api.VNCDoException: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionRefusedError'>: Connection was refused by other side: 111: Connection refused.

[skywo1f]

(papertty) pi@raspberrypi:~/PaperTTY $ sudo ~/.virtualenvs/papertty/bin/python3 ./papertty.py --driver epd2in13 vnc --display 1 --password supAPass --sleep 0.1 --rotate 90 Loading PIL font tom-thumb.pil. Font size is ignored. Timeout to server localhost:1

[joukos]

The VNC error messages could be made a bit more helpful. What command/settings are you using for the VNC server? Is the password correct?

[ducloyer]

Hi I'm trying to build a ebookreader with a pi0 and a 9.7inc waveshare epaper. I probably do something wrong in the installation, but I don't find where.

I create de virtualenv with : mkvirtualenv -p /usr/bin/python3 -r requirements.txt papertty No error appears in the windows

I create a connection with : (papertty) pi@raspberrypi:~/Documents/github/PaperTTY-master $ vncserver -geometry 1200x825 :3 There isn't any error end it's end with Fichier journal : /home/pi/.vnc/raspberrypi:3.log Nouveau bureau : raspberrypi:3 (192.168.1.22:3) (papertty) pi@raspberrypi:~/Documents/github/PaperTTY-master $

But when I launched sudo ~/.virtualenvs/papertty/bin/python3 ./papertty.py --driver it8951 vnc --display 3 --password supAPass --sleep 0.1 --rotate 90 The script end with Timeout to server localhost:3 (I tried with my pi password and with my root password in place of supAPpass)

It appened after the line client.refreshScreen() in papertty.py

I already tried to forced the ip adress and the display, if i write a wrong adress or display I have another error, so I think it's ok

I also check the vncserver by connecting to it on my smartphone, it work's fine, but I noticed that there is a message on the desktop GDBus.Error:org.freedesktop.PolicyKit 1.Error.Failed: An authentication agent already exists for the given subject

I also tried to do the same without the virtualenv, it give the same error (timeout...), the only difference is that I have a warning at the begining :0: UserWarning: You do not have a working installation of the service_identity module: 'cannot import name 'verify_ip_address' from 'service_identity.pyopenssl' (/usr/lib/python3/dist-packages/service_identity/pyopenssl.py)'. Please install it from <https://pypi.python.org/pypi/service_identity> and make sure all of its dependencies are satisfied. Without the service_identity module, Twisted can perform only rudimentary TLS client hostname verification. Many valid certificate/hostname mappings may be rejected.

[ducloyer]

After 'vncserver -geometry 1200x825 :3' I launched 'x11vnc -display :3' and now I have my desktop on the epaper I also tested without 'vncserver -geometry 1200x825 :3' and directly 'x11vnc -display :0', it works

[joukos]

One thing to keep in mind is that the VNC server's password is separate from your user's (pi) or root password. Of course, you can set the same password but VNC typically might support only a maximum length of 8 and is not secure to begin with. Usually when starting up the server the first time it prompts for a password to set (and stores it in ~/.vnc/passwd or so, so that you don't need to set it again the next time).

I'm not exactly sure what you achieved with running both vncserver and x11vnc but does it work the way you wanted now?

[joukos]

I'll close this now - if you're still having trouble, please reopen the issue or create a new one.