On 11/25/2016 06:08 PM, Takashi Iwai wrote: > On Wed, 23 Nov 2016 21:42:26 +0100, > marve wrote: >> Dear all, >> >> Here a rephrase of my issue with TOSLINK SPDIF output of my Dell XPS One >> 2710 system running Linux. >> >> >> First: I have tried other hardware with my DTS receiver and the receiver >> worked fine. Also I have checked the HDMI output of my computer, also >> working! >> >> Second: The SPDIF output worked fine on a Windows 7 installation with >> PCM and DTS. I stopped using Windows privately. >> >> Most success I got with debugging the SPDIF TOSLINK is: >> - With the HDA Intel sound cards Jack Retasking tool: >> - Check Showing unconnected pins. Actually, the TOSLINK is >> connected but shows "not connected" in the tool. >> - Manually override Pin ID 0x1e >> - Select "SPDIF Out" and "Apply Now" > You're sure that this pin is correct? I mean, did you get *any* > signal from the SPDIF I/O by enabling this pin? > No signal at all from the SPDIF Toslink port! The reason trying this pin is that when overridden, it shows "SPDIF Out". >> - Then with PulseAudio Volume Control: >> - In the Configuration Tab, select "Profile: Digital Stereo >> (IEC958) Output" >> - In the Output Devices "Digital Output (S/PDIF)" appears and is >> the only option and in the advanced tab PCM, DTS, AC3, MPEG, EAC3, AAC >> are selected >> >> - I check if in alsamixer tool that the SPDIF channel is unmuted >> >> When I play a sound, the vumeter of PulseAudio Volume Control does >> react, see png attachment (https://postimg.org/image/5tu4rax9t/), but my >> external DTS receiver doesn't get input! > First off, you should try the normal audio PCM stream instead of DTS > or such. It's possible that the SPDIF status bits aren't properly set > and the receiver doesn't accept the non-audio signals. Ok, I deselected all other streams except PCM, no signal.. (Will do this in future tests). > And, as a primary testing, please test with aplay. You can pass > -Dspdif or -Dspdif:1 option to transmit over the SPDIF device. I was able to run "aplay -Dspdif" without errors. I also checked in another terminal if the alsamixer showed the s/pdif channels unmuted. They are unmuted, but I didn't get a signal to my audio receiver. "aplay -Dspdif:1" didn't work: "Cannot find card". > Last but not least, check the IEC958 status bits of the assigned PCM. > You can use iecset program in alsa-utils for checking / setting the > bits. > iecset -x shows: AES0=0x05,AES1=0x82,AES2=0x00,AES3=0x00 Best, Marijn > Takashi > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
