Implementing the console blanking function via the method described, and after finding your post, is working fine for me.
I am upgrading from `Raspbian GNU/Linux 10 (buster)` where it was done via `/boot/cmdline.txt`, but now it seems to be done via `/boot/firmware/cmdline.txt`. I am using the lite version`2025-12-04-raspios-trixie-arm64-lite.img` and my file:
Using raspi-config - Display Options - Screen Blanking does not seem to work, at least for me.
I do observe this:
I am upgrading from `Raspbian GNU/Linux 10 (buster)` where it was done via `/boot/cmdline.txt`, but now it seems to be done via `/boot/firmware/cmdline.txt`. I am using the lite version`2025-12-04-raspios-trixie-arm64-lite.img` and my file:
Code:
doug@rpi2:~ $ cat /boot/firmware/cmdline.txtconsole=serial0,115200 console=tty1 root=PARTUUID=4c0fd139-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=CA consoleblank=300I do observe this:
Code:
doug@rpi2:~ $ cat /sys/module/kernel/parameters/consoleblank300Statistics: Posted by dsmythies — Sun Jan 11, 2026 7:09 pm