Tested the ACPI Alarm (rtcwake) function in openSUSE 11.0. A very important feature for a media center.
It worked in openSUSE 10.2 but was disabled in openSUSE 10.3 due to issues. So my production media center is still running good old openSUSE 10.2.
I failed my first tests with openSUSE 11.0.
The /sys/class/rtc/rtc0/wakealarm file seems to stay empty when I write a time to it.
Could be because of the old/crappy bios. Need to test with some descent hardware.
If you got this working with openSUSE 11.0, please drop me a line.
If you got some free cycles and would like to test this:
This command should set your machine to wake in 5 minutes:
echo "+00-00-00 00:05:00" > /sys/class/rtc/rtc0/wakealarm
Check if the file is changed:
Is there anything in the file?
Put SYSTOHC="no" in /etc/sysconfig/clock so that the bios clock is not touched when you shutdown.
Does it wakeup?