Bug#650081: ACPI wakeup doesn't work on ASUS P8H67-M EVO
Eric Lavarde wrote:
> Could it be that the BIOS overwrites my command line entry at
> shutdown time, but not at suspend time?
Sure, I can believe that. It's also possible that when you try to
enter S5, something goes wrong and the machine ends up powering
off completely and then the BIOS writes to the RTC at bootup.
Here's an experiment to try:
echo shutdown >/sys/power/disk
echo disk >/sys/power/state
It performs a suspend-to-disk but enters S5 instead of S4.
After that: maybe RTC or ACPI folks can help (see the MAINTAINERS
file, and please cc me or this bug log if contacting them so we can
track it). But I'd be more inclined to work on getting
suspend-to-disk working without unloading the media capture driver