What suspend methods are supported on the Lenovo ThinkPad P16 (21D60000CD)

Solution In Progress - Updated -

Environment

  • Red Hat Enterprise Linux 8.6
  • Red Hat Enterprise Linux 9.2
  • Lenovo ThinkPad P16 (21D60000CD)
  • Lenovo ThinkPad P16v (21FDZB24CN)

Issue

cat /sys/power/state
freeze mem disk

Are all these suspend methods supported on Lenovo ThinkPad P16 (21D60000CD) ?

Resolution

  • SOix(suspend to idle - s2idle) is the default suspend method in the BIOS.
  • S3 sleep state (suspend to RAM) is not supported, because "deep" is not present in /sys/power/mem_sleep.
  • S4 hibernation (suspend to disk), even disk is in /sys/power/state, S4 is not supported on this Laptop.

The default suspend method in the BIOS is SOix(suspend to idle - s2idle) and SOix is the only suspend method on this Laptop supported by Lenovo.

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