![]() I assume it programs a wakeup time into the BIOS's NVRAM before initiating a sleep. ![]() On Linux, the rtcwake command has an option to do that. So your best bet is to look into programmatically doing a sleep/wake cycle, which is possible on at least some hardware. Ross's comment about the hardware supporting an S1 sleep didn't mention an S2 (CPU actually powered down), so it's probably not even possible to power down just the CPU. We need much more detail on that to do more than guess about which sleep states will serve your purpose and which won't.īased on comments, it's likely that ACPI S3 sleep will be needed. Based on your comment about defeating some kind of shutdown every 30 mins, it sounds like you need the whole CPU (all cores) to sleep.
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