Yes, thanks very much @Aydo and @ibertario - this is a very neat trick…but I can’t get mine to work.
I’ve edited the config.txt file several times now with nano, and I can see the successive changes I’ve made, but after several software- and hardware reboots, I still have the blinking Christmas tree Umbrel with all of the LEDs lit up / flashing strong.
Any ideas why it’s not working? Here is the relevant section of the config.txt file with the new additions:
Perhaps that’s the problem - the LEDs are being powered by the Geekworm auxiliary boards? Apologies - this is my first ever RPi, and I’ve pretty much only ever had it in this enclosure
#Power LED off
dtparam=pwr_led_trigger=default-on
dtparam=pwr_led_activelow=off #Activity LED off
dtparam=act_led_trigger=none
dtparam=act_led_activelow=off #Turn off Ethernet ACT LED
dtparam=eth_led0=4 #Turn off Ethernet LNK LED
dtparam=eth_led1=4
(Activity LED is for status if problem with SDRAM, kernel file state, boot, halt and if all OK it means either SD connected or R/W in process on it - could be usefull sometimes…)