P10 Outdoor Panel 1/4 Scan Problem about rpi-rgb-led-matrix HOT 15 OPEN

led-multiplexing=4 worked for my P10 4 Scan 16×32.
May try tweaking other parameters keeping this multiplexer=4

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multiplexing?

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tried all from 0 to 18, but no success
this example is 3

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for me it seems that row 0-3 and 4-7 are swapped
also 8-11 and 12-15
same an the second panel
but how to solve this?

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your problem will be solved after a minor tweaking in multiplex-mappers.cc file

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I'm not firm with cc
can you give me a hint or example what to do
when I change the led-multiplexer.cc, what's next to get the demo (and python) workung)
do I have to "make" the libs again?

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there is no file led-multiplexer.cc
which do you mean?

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https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/lib/multiplex-mappers.cc

yes you have compile the libraries again

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tried to change and complie it. Output on the display changes, but (at the moment) I don't understand how the multiplex mapper and the pixelmapper works

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trial and error

map each x,y coordinates

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Hi there got a P10 outdoor 1/4 scan 32x16 display and can't get ist work it seems that every 4 rows are not in the correct order
VID-20231001-WA0010.mp4

Greetings,

What command are You trying?

ex. sudo demo --led-cols=32 --led-rows=16 --led-multiplexing=8 -D 0 (the 8 works for my 32x16 1/4 scan outdoor P10)

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Hi there got a P10 outdoor 1/4 scan 32x16 display and can't get ist work it seems that every 4 rows are not in the correct order
VID-20231001-WA0010.mp4

Greetings,

What command are You trying?

ex. sudo demo --led-cols=32 --led-rows=16 --led-multiplexing=8 -D 0 (the 8 works for my 32x16 1/4 scan outdoor P10)

I tried all combinations and the mutliplexing=3 or 13 brings the shown video
also asked the manufacrurer for a pixelmapping but get no answer (until now)

from rpi-rgb-led-matrix.

Hi there got a P10 outdoor 1/4 scan 32x16 display and can't get ist work it seems that every 4 rows are not in the correct order
VID-20231001-WA0010.mp4

Greetings,
What command are You trying?
ex. sudo demo --led-cols=32 --led-rows=16 --led-multiplexing=8 -D 0 (the 8 works for my 32x16 1/4 scan outdoor P10)

I tried all combinations and the mutliplexing=3 or 13 brings the shown video also asked the manufacrurer for a pixelmapping but get no answer (until now)

Can You please take a picture of the back of rgb panel?

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get it work with a little twaek in the mapping
but how to compile (MAKE ?) that also the python examples will work now?

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i am not sure about the python one, i used C

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