Hello!
Armbian has an issue, that it's possible to set backlight to zero, effectively blanking the screen completely. Accidentally, I've pulled the slider in XFCE too much and disabled the backlight completely.
Unfortunately, I'm not sure, how to fix this, because systemd launches unit "restore backlight levels" during the bootup and turns the backlight off right on the boot.
This wouldn't be a much of a problem, but I'm currently on a trip, and I have no MicroSD with another OS to fix the problem (Armbian is installed to eMMC). Somehow, I need to disable backlight restore service, or go into single-user mode, so that I can edit the configuration, but all I currently have access to is an Android smartphone and U-Boot on the Pinebook. Serial console is not an option either.
Armbian has an issue, that it's possible to set backlight to zero, effectively blanking the screen completely. Accidentally, I've pulled the slider in XFCE too much and disabled the backlight completely.
Unfortunately, I'm not sure, how to fix this, because systemd launches unit "restore backlight levels" during the bootup and turns the backlight off right on the boot.
This wouldn't be a much of a problem, but I'm currently on a trip, and I have no MicroSD with another OS to fix the problem (Armbian is installed to eMMC). Somehow, I need to disable backlight restore service, or go into single-user mode, so that I can edit the configuration, but all I currently have access to is an Android smartphone and U-Boot on the Pinebook. Serial console is not an option either.