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authorAymeric Wibo <obiwac@FreeBSD.org>2026-07-07 10:52:00 +0000
committerLorenzo Salvadore <salvadore@FreeBSD.org>2026-07-20 11:59:33 +0000
commitf16529a77e6a0aa12bfca3b50f6d57015f03e810 (patch)
tree320cb07706a8346142ccb30eb3ab21fc49b80977 /website
parent01abdb558840a74e69664b152eeb5f10e4cca17d (diff)
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+=== Suspend/Resume Improvements
+
+Links: +
+link:https://obiw.ac/s0ix/[Blog] URL: link:https://obiw.ac/s0ix/[] +
+link:https://youtu.be/RCjPc4X2Edc[BSDCan talk on s2idle/S0ix] URL: link:https://youtu.be/RCjPc4X2Edc[] +
+link:https://github.com/obiwac/freebsd-s0ix/pull/15[Working branch] URL: link:https://github.com/obiwac/freebsd-s0ix/pull/15[]
+
+Contact: obiwac <obiwac@FreeBSD.org>
+
+Suspend-to-idle and support for S0ix sleep is in the process of being added to FreeBSD.
+
+This will allow modern Intel and AMD laptops, some of which do not support ACPI S3 sleep, to enter low power states to increase battery life.
+
+Mostly, the status is the same as the previous quarter -- work is still ongoing on narrowing down the NVMe resume issues and fixing up the D-state issues.
+
+The generic power management interface has been committed and man:zzz[8] has been rewritten to make use of it.
+You are now expected to use the `kern.power.supported_stype` sysctl to list supported generic sleep types and set the `kern.power.suspend` sysctl to the sleep type you would like man:zzz[8] to use.
+
+A bunch of small fixes and improvements were made to the acpi_spmc driver.
+
+Generic USB4 NHI support has also been committed.
+The only thing left to commit for the USB4 support required for S0i3 entry is the suspend routine itself.
+The man:thunderbolt[4] manpage has been updated to be clearer on the fact that this is only intended to support S0i3 entry.
+
+A manpage has been written for man:amdsmu[4] to better explain how to diagnose S0i3 entry.
+
+Sponsor: The FreeBSD Foundation