Hi Ralf, thanks for the hints and forum-link! I am now reading some documentation on how to define a profile set for pulseaudio which hopefully will add the digital out to the selection. The command speaker-test -D iec958:CARD=K6,DEV=0 -F S32_LE -c 6 works and I get sound on channels 5 an 6 so I am confident. As I actually only need sound from Spotify and the browser in Linux I'll try this way first before switching to another sound server. The alternative to the Komplete Audio would have been the Focusrite Scarlett 6i6 but I couldn't find a reliable source that this one works better in Linux. Even a PCIe interface would do the job as I really only need a good ASIO driver (and the digital out)... well, I can still exchange the device if it won't work. Static noise might have been the wrong term; I meant a ground loop which I can't get rid of except using the digital out. This might well be related to the power lines in my appartment being fishy (using a specific light switch will cause audio drops at the AV-receiver...). Cheers, Philip 2017-08-09 21:51 GMT+02:00 Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxx>: > On Wed, 9 Aug 2017 20:42:30 +0200, Philip wrote: >>ALSA in Linux Mint 18.1 does not set up the SPDIF by default. Only an >>analog output with the respective profiles are shown in the end in the >>Pulse Audio controls. > > Hi, > > perhaps not an ALSA issue, but a pulseaudio issue? > > Seemingly the device should work OOTB: > > https://linuxmusicians.com/viewtopic.php?t=12161#p50901 > > Consider to subscribe to this forum and ask there. > > FWIW I'm not using the same device as you, but among PCIe and PCI audio > interfaces, I'm using one USB class compliant device, too. It's a > Focusrite Scarlett 18i20 2nd gen and S/PDIF works OOTB. > > I'm using ALSA and jackd 2 (not jackdbus) only. For packages with a hard > dependency on pulseaudio I build an empty dummy package > "pulseaudio". This works for at least Ubuntu and Arch Linux without > issues. > > On Arch Linux I'm using https://github.com/i-rinat/apulse for Firefox, > on Ubuntu I don't have Firefox installed and nothing else I'm using > requires pulseaudio. > > AFAIK you could disable pulseaudio temporarily, so for testing purpose > consider to at least disable pulseaudio, remove your asound.conf entry > and try again using plain alsa and/or jackd 1 or 2. > > Btw. neither my consumer, pro-sumer, nor my professional audio devices > cause static noise when using balanced as well as unbalanced analog IOs. > For some unknown reason the headphone output of my RME PCIe card had > unbearable computer noise in the audio signal, some day it occurred, > stayed for months and then disappeared. I suspect a cable issue, but > can't say for sure. However, I'm using a new headphone cable, as well > as a new computer, since my old computer anyway was fishy and outdated. > > Even if cheapest consumer gear does cause static noise, something is > fishy. > > Regards, > Ralf > > ------------------------------------------------------------------------------ > 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 ------------------------------------------------------------------------------ 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
