On Wed, Jun 07, 2017 at 02:16:56PM +0200, Paul Menzel wrote: > Date: Wed, 7 Jun 2017 14:16:56 +0200 > From: Paul Menzel <pmenzel@xxxxxxxxxxxxx> > Subject: Problem with front headphone connector > To: alsa-user@xxxxxxxxxxxxxxxxxxxxx > > Dear ALSA users, > > > Linux 4.9.30 is used. > > Using a Fujitsu Desktop ESPRIMO P756 E85 with a Realtek ALC671, > depending on the file with stereo sound, I need to pull the > headphone jack a little out to hear both channels. But for others, I > need to push it back in. > > Do you know if that is a hardware defect, or can some workaround be > added to the Linux kernel? > Paul, Do the headphones have a TRRS (4-conductor) plug? Many do these days, as they are designed for mobile phones. You may need a converter from TRRS (tip-ring-ring-sleeve) to TRS (tip-ring-sleeve). Some manufacturers are not forthcoming with information about the wiring of their plugs, but it's usually reasonably easy to discover by measurement. There are, of course, several "standards". A search on the CTIA vs OMTP standards may prove informative. Worth checking before software. If the software differences are absolutely repeatable, then I defer to your results. Hope this helps John Mills ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
