Can't Disable PWR LED of a Raspberry Pi4b 8Gb

[scxs535]

Describe the issue you are experiencing

I use follow code to disable the PWR LED of Raspberry Pi4b 8Gb with HA OS ( core 9.4) in boot/config.txt file
dtparam=pwr_led_trigger=none
dtparam=pwr_led_activelow=off
it works fine still with operating system to 8.5

but it doesn't work anymore after upgrade operating system to 9.0

maybe it has something to do with the change #2038 .
#2038

What operating system image do you use?

rpi4-64 (Raspberry Pi 4/400 64-bit OS)

What version of Home Assistant Operating System is installed?

9.0

Did you upgrade the Operating System.

Yes

Steps to reproduce the issue

I use follow code to disable the PWR LED of Raspberry Pi4b 8Gb with HA OS ( core 9.4) in boot/config.txt file
dtparam=pwr_led_trigger=none
dtparam=pwr_led_activelow=off
it works fine still with operating system to 8.5

but it doesn't work anymore after upgrade operating system to 9.0

maybe it has something to do with the change #2038 .
#2038

Anything in the Supervisor logs that might be useful for us?

No

Anything in the Host logs that might be useful for us?

No

System Health information

No response

Additional information

No response

[TeleRocker22]

What does your /boot/config.txt look like? I had the same problem with my Pi 3B+ and I found the solution on the following page.

raspberrypi/firmware#1742

I put the SD card in my laptop, mounted the boot partition, and commented out the following line in my config.txt file:

#dtparam=pwr_led_trigger=none

Leave dtparam=pwr_led_activelow=off

I hope this helps!

[agners]

Hm, I see, this fix has actually been triggered by a problem I observed on Yellow, see raspberrypi/linux#5107 🙈

In any case, this was a bug in the old firmware, and with the new firmware the following is the recommended method to disable (see raspberrypi/firmware#1742 (comment)):

dtparam=pwr_led_trigger=default-on   # The default
dtparam=pwr_led_activelow=off

[agners]

In the end, this change is necessary because of a bug in the Raspberry Pi firmware, which has been fixed with the latest release (and made it into HAOS 9.0). Nothing we can do from HAOS side. Please update your config.txt accordingly.

[scxs535]

thanks guys,
it works now perfect with only this code on operating system 9.0:
dtparam=pwr_led_activelow=off