Several days ago my laptop stopped playing or recording sound. I upgraded to Ubuntu 20.04, to no avail.
The Volume Control shows different 'HDMI output' profiles (linked to the NVIDIA TU106 High Definition Audio
card) but fails to show any analog sound profiles.
I have two cards:
lspci -v | grep -A7 -i "audio"
00:1f.3 Multimedia audio controller: Intel Corporation Cannon Lake PCH cAVS (rev 10)
Subsystem: Hewlett-Packard Company Cannon Lake PCH cAVS
Flags: bus master, fast devsel, latency 32, IRQ 16
Memory at da210000 (64-bit, non-prefetchable) [size=16K]
Memory at da100000 (64-bit, non-prefetchable) [size=1M]
Capabilities: <access denied>
Kernel driver in use: sof-audio-pci
Kernel modules: snd_hda_intel, snd_sof_pci
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
Subsystem: Hewlett-Packard Company Cannon Lake PCH SMBus Controller
Flags: medium devsel, IRQ 16
Memory at da21c000 (64-bit, non-prefetchable) [size=256]
I/O ports at efa0 [size=32]
--
01:00.1 Audio device: NVIDIA Corporation TU106 High Definition Audio Controller (rev a1)
Subsystem: Hewlett-Packard Company TU106 High Definition Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at dc080000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
...but only one is used:
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
I tried to force the loading of the Intel card driver in /etc/modprobe.d/alsa-base.conf with:
options snd_hda_intel enable=1,0 vid=8086,10de pid=a348,10f9
options snd_hda_intel index=0 vid=8086 pid=a348
options snd_hda_intel index=1
...but no joy.
Could someone help me?