I'm sorry for crossposting. But since I hope for a software solution, I already posted here
. On the other hand, my problem seems to be caused mainly by hardware. Therefore I'm asking here as well:
Is something known that causes mainboards of type Asrock 4Core Dual VSTA to not setting their ACPI wakeup time when setting /sys/class/rtc/rtc0/wakealarm ?
Better yet, does anyone know of a solution?