> > > > 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 ? > > Actually this is one good point. > The jack detection isn't always reliably on such old machines, and > BIOS cannot know, too. That is, it has to be adjusted by user > manually, whether the jack detection is enabled or not. > > So far, we solved this by providing "Auto-Mute Mode" mixer switch. > But the jack detection controls don't follow this yet. Maybe we can > set such a jack control as inactive state when the jack detection is > disabled. > > (And this reminds me that we can cut off "Phantom" name hack by > following the same rule -- just set the control inactive when it has > no real detection. But it still appears in control list.) > >
The other case is the bios of some computers with alc880 codec have pin defaults 0x00000000 for some pin complexes https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1015232 hda jack detect need pin fixup Pin Default 0x00000000: [Jack] Line Out at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0x0, Sequence = 0x0 http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commit;h=67b6ec3196da235317ff1b9474f17379b78f3294 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/939161 Title: Hardware not showed in Gnome-Control-Center. - [M31EI Series, Realtek ALC861, Green Headphone Out, Rear] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/939161/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
