https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243116
Bug ID: 243116
Summary: Apple hardware with Realtek ALC889A no sound
Product: Base System
Version: 12.1-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
There appear to be several Mac models with this issue. I found a workaround
using device hints here:
https://forums.freebsd.org/threads/macbook-pro-5-1-realtek-alc889a-sound-setup.56061/
hint.hdaa.0.config="ovref"
hint.hdaa.0.gpio_config="0=set"
For headphone jack autoswitch:
hint.hdaa.0.nid20.config="as=4 seq=15"
Might it be possible to tweak the base to make these models work out of the
box?
I'm familiar with buildkern/buildworld in case either is necessary to test a
fix.
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