ACK/APPLIED[C/Unstable]: [SRU] [Bionic/Cosmic] [PATCH 0/2] Fix regression on acpi-lpss

Seth Forshee seth.forshee at
Wed Aug 1 13:38:17 UTC 2018

On Wed, Aug 01, 2018 at 04:17:40PM +0800, Kai-Heng Feng wrote:
> BugLink:
> [Impact]
> Systems with acpi-lpss can't do S3/S4 on Bionic.
> [Test]
> Users confirmed these patches work for them.
> [Fix]
> Commit a192aa923b66a (ACPI / LPSS: Consolidate runtime PM and system
> sleep handling) applies quirks for both runtime and system suspend.
> This causes problems for some systems, so avoid using quirks on S3 and
> S4.
> [Regression Potential]
> Low. These patches are in upstream stable, and it brings back driver's
> old behavior.

Clean cherry picks, positive testing.

Acked-by: Seth Forshee <seth.forshee at>

Patch 1 already made it to cosmic via upstream stable. Applied patch 2
to cosmic/master-next and unstable/master, thanks!

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