PCI/internal sound card not detected

[william backus]

ubuntu 20.04.01 clean install.
thanks in advance for your attention. polite comment, no yelling here. going thru transfer and setup machine previous install ubuntu 16.04 when sound was working.

lspci lists all sources. internal intel ada card not intialized. only option in sound is hdmi. all worked before clean install.

00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series]

william@william-Studio-XPS-7100:~$ cat /proc/asound/cards
 0 [SB ]: HDA-Intel - HDA ATI SB
                      HDA ATI SB at 0xfe8f4000 irq 16
 1 [HDMI ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xfe9bc000 irq 26

william@william-Studio-XPS-7100:~$ cat /proc/asound/card0/codec* | grep Codec
Codec: Realtek ALC887

same audio issue, settings and pavucontrol only see hdmi audio out and not intel hda audio
older dell desktop with 4 years previous use ubuntu. audio worked on morning of my fresh install ubuntu 20.04.01. oddly virtualbox install ubuntu 20.04 and other dist same linux, but broke my base machine. base machine restart and messing with pavucontrol allowed my to select appropriate settings to restore audio after exit virutalbox session. all else works and i do not want to risk all my transfer/setup trying to fix this one issue, as important as it may be to me.

just politely adding my experience to thread in case future update may address this issue.

william@william-Studio-XPS-7100:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS880 Host Bridge
00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780 PCI to PCI bridge (ext gfx port 0)
00:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780 PCI to PCI bridge (PCIE port 2)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 3c)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 IDE Controller
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge
00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Link Control
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series]
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series]
02:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetLink BCM57788 Gigabit Ethernet PCIe (rev 01)
03:05.0 Communication controller: Conexant Systems, Inc. HSF 56k Data/Fax Modem

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: william 1432 F.... pulseaudio
 /dev/snd/controlC0: william 1432 F.... pulseaudio
 /dev/snd/pcmC0D1p: william 1432 F...m pulseaudio
 /dev/snd/controlC1: william 1432 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 28 09:16:19 2020
InstallationDate: Installed on 2020-09-26 (1 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: PCI/internal sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/10/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0NWWY0
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd09/10/2010:svnDellInc.:pnStudioXPS7100:pvr:rvnDellInc.:rn0NWWY0:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.name: Studio XPS 7100
dmi.sys.vendor: Dell Inc.