Sound gone after upgrade [SOLVED]

[dufeu]

For the first time in years, I'm having sound problems after emerge @world.

I have confirmed:

• The speakers are plugged in, powered and actually work.
  
• Confirmed the kernel modules which have worked for years are still present:

  Code:

  # find /lib/modules/`uname -r` | grep snd /lib/modules/4.19.14-gentoo/kernel/sound/core/oss/snd-mixer-oss.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/oss/snd-pcm-oss.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/seq/oss/snd-seq-oss.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/seq/snd-seq-dummy.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/seq/snd-seq-midi-event.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/seq/snd-seq.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/snd-hrtimer.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/snd-pcm.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/snd-seq-device.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/snd-timer.ko /lib/modules/4.19.14-gentoo/kernel/sound/core/snd.ko /lib/modules/4.19.14-gentoo/kernel/sound/hda/snd-hda-core.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/ac97/snd-ac97-codec.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/hda/snd-hda-codec-generic.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/hda/snd-hda-codec-hdmi.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/hda/snd-hda-codec-realtek.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/hda/snd-hda-codec.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/hda/snd-hda-intel.ko /lib/modules/4.19.14-gentoo/kernel/sound/pci/snd-intel8x0.ko # lsmod | sort | grep 'snd' snd                    77824  6 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm snd_hda_codec         114688  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek snd_hda_codec_generic    77824  1 snd_hda_codec_realtek snd_hda_codec_hdmi     53248  1 snd_hda_codec_realtek    90112  1 snd_hda_core           65536  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek snd_hda_intel          32768  0 snd_pcm                98304  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core snd_timer              32768  1 snd_pcm soundcore              16384  1 snd

  
  
• That alsa correctly recognizes that my sound devices exist:

  Code:

  # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: HDMI [HDA ATI HDMI], device 7: HDMI 1 [HDMI 1]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 0: ALC892 Analog [ALC892 Analog]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 1: ALC892 Digital [ALC892 Digital]   Subdevices: 1/1   Subdevice #0: subdevice #0

  
  
• That the hardware is still recognized:

  Code:

  # lspci -v | grep -A7 -i "audio" 00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri HDMI/DP Audio Controller         Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri HDMI/DP Audio Controller         Flags: bus master, fast devsel, latency 0, IRQ 51         Memory at feb64000 (64-bit, non-prefetchable) [size=16K]         Capabilities: [48] Vendor Specific Information: Len=08 <?>         Capabilities: [50] Power Management version 3         Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00         Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+         Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> -- 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)         Subsystem: Gigabyte Technology Co., Ltd FCH Azalia Controller         Flags: bus master, slow devsel, latency 32, IRQ 16         Memory at feb60000 (64-bit, non-prefetchable) [size=16K]         Capabilities: [50] Power Management version 2         Kernel driver in use: snd_hda_intel         Kernel modules: snd_hda_intel

  
  
• That my PCMs are recognized:

  Code:

  # aplay -L null     Discard all samples (playback) or generate zero samples (capture) pulse     PulseAudio Sound Server hdmi:CARD=HDMI,DEV=0     HDA ATI HDMI, HDMI 0     HDMI Audio Output hdmi:CARD=HDMI,DEV=1     HDA ATI HDMI, HDMI 1     HDMI Audio Output hdmi:CARD=HDMI,DEV=2     HDA ATI HDMI, HDMI 2     HDMI Audio Output hdmi:CARD=HDMI,DEV=3     HDA ATI HDMI, HDMI 3     HDMI Audio Output usbstream:CARD=HDMI     HDA ATI HDMI     USB Stream Output default:CARD=Generic     HD-Audio Generic, ALC892 Analog     Default Audio Device sysdefault:CARD=Generic     HD-Audio Generic, ALC892 Analog     Default Audio Device front:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     Front speakers surround21:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     2.1 Surround output to Front and Subwoofer speakers surround40:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     4.0 Surround output to Front and Rear speakers surround41:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Analog     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=Generic,DEV=0     HD-Audio Generic, ALC892 Digital     IEC958 (S/PDIF) Digital Audio Output usbstream:CARD=Generic     HD-Audio Generic     USB Stream Output

In trying to figure out what's up with all that, I've (re)ead the Pulse Audio and ALSA wiki articles.

On the off chance something might help, I've:

• Rebooted using the prior working kernel - from gentoo-sources-4.19.14 (new) to gentoo-sources-4.18.20 (prior)
  
• Downgraded media-lib/alsa-lib, media-sound/alsa-utils and media-plugins/alsa-plugins from the newly run @world 1.1.8 to their 1.1.7 equivalents.
  
• Run 'etc-update' afterwards since I got a notice from the downgrade to do so. It updated /etc/modprobe.d/alsaconf
  
• And attempted to run 'alsaconf' as suggested in several places as well as by my ancient and feeble memories.

This is what I know so far:

• During boot, 'pulseaudio' no longer appears to be automatically starting. I'm assuming this may be because it's not finding anything to start.
  
• That the utility 'alsaconf' no longer appears to be included with 'alsa-utils' despite the information here.
  
• That /etc/modprobe.d/alsa.conf now appears borked. I'm not certain since it's been so long since I've had any reason to look at sound issues, but I'm pretty sure there should be a reference to HDMI sound in there some place. I know such references were moved when running 'etc-update'. I was functioning on autopilot and allowed the update to go through before I made the connection I might not want that.
  
• Running 'aplay -l' as a user gets me:

  Code:

  $ aplay -l aplay: device_list:272: no soundcards found

  
  
• Naturally, None of the available desktop configuration utilities can do anything either since they don't see any PCMs to work with either.
  
• Finally, this is the /etc/modprobe.d/alsa.conf file I was left with after running 'etc-update'.

  Code:

  # Alsa kernel modules' configuration file. # ALSA portion alias char-major-116 snd # OSS/Free portion alias char-major-14 soundcore ## ## IMPORTANT: ## You need to customise this section for your specific sound card(s) ## and then run `update-modules' command. ## Read alsa-driver's INSTALL file in /usr/share/doc for more info. ## ##  ALSA portion ## alias snd-card-0 snd-interwave ## alias snd-card-1 snd-ens1371 ##  OSS/Free portion ## alias sound-slot-0 snd-card-0 ## alias sound-slot-1 snd-card-1 ## # OSS/Free portion - card #1 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss ##  OSS/Free portion - card #2 ## alias sound-service-1-0 snd-mixer-oss ## alias sound-service-1-3 snd-pcm-oss ## alias sound-service-1-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss # Set this to the correct number of cards. options snd cards_limit=1

I'm at a bit of a loss here without the alsaconf utility as I don't trust my memory on how to properly configure /etc/modprobe.d/alsa.conf.
I'm open to suggestions on how to fix this! It's tough to watch all my recent anime without sound even though I don't understand Japanese.
_________________
People whom think M$ is mediocre, don't know the half of it.

[hunky]

I've just experienced something similar - though aplay -L shows my soundcards. In dmesg, I do see a list of the HDMI cards but it does say Alsa can't find any cards.. but aplay and alsamixer show them.

I'm using kmix - if I go into the system systems GUI under Audio/video and hit the test on any of my listed cards, I get no sound. However, if I open up Audacity and choose my PCH soundcard, I get sound just fine.

[giorgos]

I had a similar issue about two weeks ago and I had to downgrade udev to the previous version to make pulseaudio detect the sound card.
With the latest udev, pulseaudio did not detect any sound card and it reverted to "dummy output" for me.

[dufeu]

[giorgos]