[Bug 209897] missing functionality after suspend/resume

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209897

            Bug ID: 209897
           Summary: missing functionality after suspend/resume
           Product: Base System
           Version: 10.2-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: kami at freebsd.org
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

My system (the version selection in bugzilla does not offer 10.3-stable):
FreeBSD AprilRyan.norad 10.3-STABLE FreeBSD 10.3-STABLE #0 r300145M: Wed May 18
17:00:58 CEST 2016    
root at AprilRyan.norad:/usr/obj/S403/amd64/usr/src/sys/S403  amd64

It's patched for Haswell graphics:
https://reviews.freebsd.org/D5837

When I suspend/resume the following stops working:
- `sysctl hw.acpi.acline` sticks to whatever state it had during resume
- No more sound over HDMI (it works after a fresh boot)
- Acpi events like the suspend key

I can attach an acpi dump if that is useful. It does not change between
suspend/resume, though.

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