I recently purchased a D945GCLF2 board, and I'm having some difficulty with ACPI S3 and S5 wake state setting is BIOS.
At the moment, I am unsuccessful in configuring BIOS (rev. 2009.0528.2014) to permit a timed wake on S5 (or S3).
Using UTC time from the RTC, I've attempted to set the "Wake System from S5" feature for either daily wake or a date-specific wake, and no joy. I've also determined that when the system is in a S3 state, the board does not wake.
Separately, I can confirm that a software enabling of the RTC (via /sys/class/rtc/rtc0/wakealarm ) does correctly wake the board on S3 or S5, so the issue appears to be centered around a problem with BIOS settings.
As an aside, and perhaps as a clue, a cat of /proc/driver/rtc never identifies the correct BIOS wake configuration. Neither is the date/time for the next wake set, nor is the alarm_IRQ enabled. I'm not certain of the correlation of this observation, but it is a little strange nonetheless.
Has anyone been successful in enabling the RTC wake in BIOS? If so, what BIOS release was used, and what was the BIOS config settings?