Date: Fri, 8 Mar 2019 09:27:09 -0300 From: Marcel Bonnet <marcelbonnet@gmail.com> To: FreeBSD multimedia <freebsd-multimedia@freebsd.org> Subject: [SOLVED] Re: HDA RealTek ALC256 : problems with headphones output Message-ID: <CAPe0dBkijFp9_9tfeniS2qN04xWBac5vUxY6KxX3zaG_0rZSJQ@mail.gmail.com> In-Reply-To: <CAPe0dBnsr-7DCLtM5FgM3b3YDFiDN3Fx_haQt-sBk-Xm6RUzCA@mail.gmail.com> References: <CAPe0dBnsr-7DCLtM5FgM3b3YDFiDN3Fx_haQt-sBk-Xm6RUzCA@mail.gmail.com>
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On Thu, 7 Mar 2019 at 16:36, Marcel Bonnet <marcelbonnet@gmail.com> wrote: > Hi. I need help with a HDA device: RealTek ALC256 (laptop is Dell Latitude > 3490). > > I can hear from speakers. But the problem is the headphone output. > > If I plug the headphone, as a long as I increase the volume and mixer pcm > to above 50 I heard the presence of "some" audio. But the sound is heard at > very low level. > > If I disconnect the plug, slowly, without removing, then I hear the music > playing louder, but as I increase volume, the music sounds as if I was > tunning a FM receiver on the road and miles away from the radio station: > you hear music, but you hear noise (that static). > > So I was looking into hda sources, forums, linux sources... and I got no > clue. I experimented lots of sysctl and hints ... nothing worked. > > I also noticed that was necessary to add this hint: > dev.hdaa.1.config=senseinv , because the logic of plug detection is > inverted. > > If you look at the attachments, you'll find that there are some notices: " > hdacc1: Unexpected unsolicited response with tag 63: ffffffff " > > I'm really lost. I appreciate help. > > -- > Marcel Bonnet > > I found this old proposed patch in bugzilla: https://bugs.freebsd.org/bugzilla/attachment.cgi?id=188702&action=diff It works. It came from Linux patches tree for their HDA driver. -- Marcel Bonnet
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