Open lalten opened 2 years ago
I have the same behavior as described by lalten. I tried to switch the back light power by manipulating the bl_power
file in /sys/class/backlight/10-0045/
based on the status of xscreensaver. Is there any way to control the back light brightness and power?
Hi, I contacted the BIQU support on this issue/question. This is the answer from them:
"Sorry, no. This is a constant light that the screen lights up."
So it seems, that it is not intended to control the backlight at all, which is a pity.
and via buttons hardware? (three in the corner)
Hi, I contacted the BIQU support on this issue/question. This is the answer from them:
"Sorry, no. This is a constant light that the screen lights up."
So it seems, that it is not intended to control the backlight at all, which is a pity.
Hello, According to their technical docs ( schematics https://github.com/bigtreetech/Raspberry-Pad/blob/master/Pad5/Hardware/BIGTREETECH%20Raspberry%20pad%205-SCH.pdf ) the 3 hardware buttons (BRI+, BRI- and LCD_DIR) are plugged to some pins of a ARM Cortex M0 MCU. So it could be software-controlled, if BTT would implement it in the firmware of this MPU !
Hi, how can I control the Raspberry Pad 5's display backlight and power?
I'm on
2022-04-04-raspios-bullseye-arm64-lite
with Kernel 5.15.32-v8+, running KlipperScreen (installed via kiauh)/boot/dt-blob.bin
is also installed as per the manual.A sysfs entry is present:
But sending commands has no effect. (using rpi-backlight):
sudo rpi-backlight -p off /sys/class/backlight/10-0045
Display stays on and at 100% brightness...