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adafruit / rpi-fb-matrix

Raspberry Pi framebuffer copy tool for RGB LED matrices. Show what's on a Pi HDMI output on a big RGB LED matrix chain!
GNU General Public License v2.0
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Unable to open primary display! #13

Closed josh1hart closed 2 years ago

josh1hart commented 2 years ago

Running the display test works flawlessly. All panels are showing up and working together but when running rpi-fb-matrix, the error message Unable to open primary display! is given.

josh1hart commented 2 years ago

IMG_4172

davemaster commented 2 years ago

Greetings,

Are You running that from a vnc client or from the raspberry terminal?

Share your matrix.cfg

davemaster commented 2 years ago

Also try to re-compile the entire rpi-fb-matrix:

make clean make all

josh1hart commented 2 years ago

matrix.txt

Thank you for your help and pardon me but I'm learning as I go, vnc? I am running the code and boards all from the raspberry pi. Ill give make clean and all a go now.

josh1hart commented 2 years ago

The make clean and all doesn't seem to have worked. IMG_4173

josh1hart commented 2 years ago

IMG_4174

Could the fact the HDMI from the raspberry pi is HDMI to VGA? I couldn't see why this could be an issue.

davemaster commented 2 years ago

After a lot of time, I plug my 3x2 screen (32x32) using electrodragon active board (3 parallel chains); bullseye installed, and CAN'T access to display...

Researching, the change of display management in Raspberry Pi OS bullseye is guilty, we're fried (that, or learn how to ask for permission to use display, using lightdrm).... better, return to Raspbian OS Buster... no other solution for now

Best regards

josh1hart commented 2 years ago

Thank you, This has solved the issue. Simply moving over to buster.