Comment # 55 on bug 1224457 from Takashi Iwai

(In reply to wlms from comment #54)
> Results of aplay -Ll on Leap 15.5 show the motherboard sound *is* detected. 
> Also I now have a HDMI audio/video splitter.  There is no audio coming from
> the CPU/GPU or the motherboard.
> 
> Results of aplay -Ll:
> 
> gem300@leap15dot5:~> aplay -Ll
> null
>     Discard all samples (playback) or generate zero samples (capture)
> speexrate
>     Rate Converter Plugin Using Speex Resampler
> pulse
>     PulseAudio Sound Server
> upmix
>     Plugin for channel upmix (4,6,8)
> default
>     Default ALSA Output (currently PulseAudio Sound Server)
> hdmi:CARD=Generic_1,DEV=0
>     HD-Audio Generic, LG FHD
>     HDMI Audio Output
> hdmi:CARD=Generic_1,DEV=1
>     HD-Audio Generic, LG FHD
>     HDMI Audio Output
> front:CARD=Generic
>     Front output / input
> surround21:CARD=Generic
>     2.1 Surround output to Front and Subwoofer speakers
> surround40:CARD=Generic
>     4.0 Surround output to Front and Rear speakers
> surround41:CARD=Generic
>     4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=Generic
>     5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=Generic
>     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=Generic
>     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
> **** List of PLAYBACK Hardware Devices ****
> card 0: Generic_1 [HD-Audio Generic], device 3: HDMI 0 [LG FHD]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: Generic_1 [HD-Audio Generic], device 7: HDMI 1 [LG FHD]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> gem300@leap15dot5:~>

Is this output from Leap 15.5 kernel?  If so, the onboard sound device wasn't
detected.  Those card 0 device 3 and 7 are for HDMI/DP audio, not the onboard
audio.