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joukos / PaperTTY

PaperTTY - Python module to render a TTY or VNC on e-ink
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Completely non functional with 2in13V2 and Pi Zero W #98

Closed parkerlreed closed 1 year ago

parkerlreed commented 1 year ago

Latest Bullseye Lite

Both the C and Python examples from waveshare are working perfectly.

Commands run but nothing printed on the screen.

parker@raspberrypi:~/eink/e-Paper/RaspberryPi_JetsonNano/python/examples $ sudo -E ~/.local/bin/papertty --driver EPD2in13v2 scrub 
Loading PIL font /home/parker/.local/lib/python3.9/site-packages/papertty/resources/tom-thumb.pil. Font size is ignored.
parker@raspberrypi:~/eink/e-Paper/RaspberryPi_JetsonNano/python/examples $ echo Test | sudo -E ~/.local/bin/papertty --driver EPD2in13v2 stdin
Loading PIL font /home/parker/.local/lib/python3.9/site-packages/papertty/resources/tom-thumb.pil. Font size is ignored.

It sits for about 10 seconds on the command doing "nothing"

Full strace log.txt

parkerlreed commented 1 year ago

Tested a virtualenv in case the local installation was the cause but no luck there either.

joukos commented 1 year ago

Does your board have some particular revision number? I've one that says Rev 2.1 on the silkscreen and it seems to have some issues with partial refresh (I forget if I had another unit that didn't have that problem, it's been a while), but works okay if I pass --nopartial after the driver selection. Although even without disabling partial refresh I do see things on the display but it's noisy.

parkerlreed commented 1 year ago

It is indeed 2.1. I think I remember having to use nopartial forever ago but completely forgot about it haha.

I'll give that a retest and let you know thank you.

Wil-Ro commented 1 year ago

@parkerlreed did that end up fixing the problem?

parkerlreed commented 1 year ago

Sorry, I've been unable to retest. I will close this out and reopen if nopartial doesn't work.

Thanks.