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

[Raymond Yau]

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

http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commit;h=416846d2b31fc740ed9d5a5ec116964fb43c4358

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 ?