[alsa-devel] [PATCH] ALSA: hda - Remove ignore_misc_bit

Raymond Yau superquad.vortex2 at gmail.com
Sat Sep 8 03:10:14 CEST 2012

2012-9-7 下午1:26 於 "David Henningsson" <david.henningsson at canonical.com> 寫道:
> The purpose of this flag is unclear. If the problem is that some machines
> have broken misc/NO_PRESENCE bits, they should be fixed by pin fixups.
> In addition, this causes jack detection functionality to be flawed on
> the M31EI, where there are two jacks without jack detection (which is
> properly marked as NO_PRESENCE), but due to ignore_misc_bit, these
> jacks are instead being reported as being present but always unplugged.
> BugLink: https://bugs.launchpad.net/bugs/939161

do you mean the commit does not fix the bug?

ALSA: hda - add support for Uniwill ECS M31EI notebook

This hardware requires same fixup for the node 0x0f like Asus A6Rp.
More information: https://bugzilla.redhat.com/show_bug.cgi?id=785417


the real cases are those desktop which does not use hda front audio panel ,
they just loss the auto mute since there is no jack detect circuit but they
can still hear sound from the headphone at anytime

do pulseaudio need a phantom port for the front panel headphone and mic
without jack detection ?

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