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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Rasbian9 Problem #425

Closed mmft1359 closed 6 years ago

mmft1359 commented 7 years ago

Hello I download Rasbian9 and follow project documentations to make and run led-image-viewer. after successful make,i execute demo -D0 and led-image-viewer ... But nothing is displayed. I did not have this problem in Rasbian8. Can anyone help me?!

hzeller commented 7 years ago
mmft1359 commented 7 years ago

Hello My wiring is exactly the same as Rasbian 8. in Rasbian 8 everything is OK but I will not respond when I work on Rasbian 9 with the same settings and wiring. It is noteworthy that when I run program on Rasbian9, the CTRL+C does not work at runtime, and I have to use the CTRL+Z and then kill the process.

hzeller commented 7 years ago

The newer Raspbian look different w.r.t to GPIO memory map detection, but I fixed that a couple of days after Raspbian 9 came out. Are you using a recent checkout of rpi-rgb-led-matrix or an older checkout (a couple of months old). If it is a recent checkout, then they might have changed around things again and I'll have a look. If you had an older checkout, just do a fresh copy.

hzeller commented 7 years ago

Also see #383

mmft1359 commented 6 years ago

I tried the new version and my problem was solved. Thank you.

esbennn commented 6 years ago

I'm currently having this problem.

Installing as detailed in here, and configuring a single 32x32 matrix, nothing shows up using Stretch from 27/11 17. Popping in an sd card with Jessie, installing the same way and using the same configuration, it works as expected.

I have followed the clues in the troubleshooting section, ie disabling sound, 1-Wire and GUI.

Any ideas?

hzeller commented 6 years ago

Do not use any Adafruit documentation if you are using this library. Use the documentation that comes with this library, and it will work. Also, only use a fresh checkout if you are using Debian9, apparently yours is more than half a year old if it does not work with 9.

esbennn commented 6 years ago

Just got back from vacation! @hzeller my god, you are right. Seems like Adafruit absolutely do not keep their repo updated. Using yours, it works on Stretch. Thanks, by the way - this library is great!