[coreboot] What is needed in dsdt to enable S4(Besides \_S4)

Bao, Zheng Zheng.Bao at amd.com
Wed Mar 16 09:38:09 CET 2011

I have \_S4 in my dsdt.asl.  But the dmesg only reports:

ACPI: (supports S0 S1 S2 S3 S5)


And cat /sys/power/state only says:

Standby mem


So what else is needed?





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