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Created attachment 1540420 [details] alsa-info.sh output I have two devices connected through my graphics card, only one is playing sound. First one is monitor over DisplayPort (HDMI / DisplayPort - Hawaii HDMI Audio [Radeon R9 290/290X / 390/390X]) and sound is working. The second one is receiver connected over HDMI (HDMI / DisplayPort 6 - Hawaii HDMI Audio [Radeon R9 290/290X / 390/390X]) and sound is not working. Recently it worked, but then it got from bad to worse. I think in Fedora 27 everything worked fine and my system picked used the HDMI whenever I turned the receiver on. When I upgraded to F28, I had to manualy select correct output in the Gnome Shell Sound settings and sometimes the correct output would not even show and I needed to do a rebbot. Then I bought new monitor and after a bit of struggling everything was working like with the old monitor, but I could also use the new monitor to play sound (previus one didn't have speakers). Then I upgraded to F29 and it seemd to work still the same for a day or two, but now I can't get any sound through the receiver via HDMI. I can still select it in the Sound settings, but no sound is going through. Restart nor unplug/plug doesn't work. I have Radeon R9 390 graphic card with AMDGPU drivers enabled (radeon.cik_support=0 amdgpu.cik_support=1). I also tried to enable DC (amdgpu.dc=1) but without any effect.
It looks like a kernel bug (graphics or audio driver).
Could you comment / attach the working / non-working output from alsa-info.sh ? From the already attached log, the two monitors are detected by the audio driver: control.1 { iface CARD name 'HDMI/DP,pcm=3 Jack' value true comment { access read type BOOLEAN count 1 } } control.6 { iface PCM device 3 name ELD value '100008000d1400019e8558554994980d09d1507942656e51204557333237305500090707' comment { access 'read volatile' type BYTES count 36 } } control.31 { iface CARD name 'HDMI/DP,pcm=11 Jack' value true comment { access read type BOOLEAN count 1 } } control.36 { iface PCM device 11 name ELD value '10000b000e40004f9e8558554994980d3dcb010054582d53523637342020202020000f1f071707503707503f07c00000' comment { access 'read volatile' type BYTES count 48 } } Perhaps, you may try give a test using the pure ALSA tools: speaker-test -D plug:hdmi:0 speaker-test -D plug:hdmi:5
The attached alsa-info.sh output is "non-working", I can't provide "working" output, because it's never working now. Neither of the commands produced any sound (tried it without and also with sudo) $ speaker-test -D plug:hdmi:0 speaker-test 1.1.8 Playback device is plug:hdmi:0 Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise Playback open error: -2,No such file or directory $ speaker-test -D plug:hdmi:5 speaker-test 1.1.8 Playback device is plug:hdmi:5 Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise ALSA lib confmisc.c:767:(parse_card) cannot find card '5' ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM hdmi:5 Playback open error: -2,No such file or directory
Sorry, try: speaker-test -c 2 -D hdmi:1,0 speaker-test -c 2 -D hdmi:1,5
speaker-test -c 2 -D hdmi:1,0 Outputs sound through the monitor fine. speaker-test -c 2 -D hdmi:1,5 No sound can be heard via the receiver. (I tested in Windows, there the reveiver and connection from PC works fine.) $ speaker-test -c 2 -D hdmi:1,5 speaker-test 1.1.8 Playback device is hdmi:1,5 Stream parameters are 48000Hz, S16_LE, 2 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 64 to 1048576 Period size range from 32 to 524288 Using max buffer size 1048576 Periods = 4 was set period_size = 262144 was set buffer_size = 1048576 0 - Front Left 1 - Front Right Time per period = 11,008152 0 - Front Left 1 - Front Right Time per period = 11,013990 0 - Front Left ^C 1 - Front Right Time per period = 0,637198
Created attachment 1543046 [details] alsa-info without AMDGPU I disabled AMDGPU drivers (and enabled radeon drivers) by removing "radeon.cik_support=0 amdgpu.cik_support=1 amdgpu.dc=1" and tried it. No change except that now I see the output as "HDMI / DisplayPort 2" instead of "HDMI / DisplayPort 6".
If the HDMI sound device number changes, you need to use the correct value for the speaker-test (for the second monitor): speaker-test -c 2 -D hdmi:1,1
As I was not sure how to determine the device number I tried hdmi:1,0 through hdmi:1,6, only the one monitor output sound.
I'm on kernel 5.0.4-200.fc29.x86_64 now and the issue is still present. Can I do anything more to help solving this?
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 29 kernel bugs. Fedora 29 has now been rebased to 5.2.9-100.fc29. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 30, and are still experiencing this issue, please change the version to Fedora 30. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.