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On 12/6/2025 at 4:09 PM, snowbody said:

root@homeassistant:/boot# ls /sys/class/leds/display
brightness  device  digits  map_seg7  max_brightness  num_digits  num_segments    power  segments  subsystem  trigger  uevent  value

 

16 hours ago, snowbody said:

display-service -c
[INFO] all digits and leds on
/usr/sbin/display-service: 116: cannot create /sys/class/leds/display/message: Permission denied

 

On 10/31/2025 at 1:32 PM, Jean-Francois Lessard said:

I think your previous permission denied issue was because you were using an older version of the driver with the current version of the display-service.

 

On 10/31/2025 at 1:32 PM, Jean-Francois Lessard said:

Latest driver version now use line-display library (expected upstreaming requirements), therefore there is no more sysfs value attribute. This has been replaced with the line-display message attribute.

 

@snowbody you are using an older version of the driver with the current version of the display-service. That won't work.

 

Since you are on 6.12 kernel, start by cloning the main branch of https://github.com/jefflessard/tm16xx-display.git it already contains the line-display backport.

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