Similar issue https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1784485
tl;dr
I have sound only under 4.19.x series.
I have NOT sound at all under newer kernel series.
HW Details:
```
kubuntu@kubuntu:~$ sudo hwinfo --sound
20: PCI 1f.3: 0403 Audio device
[Created at pci.386]
Unique ID: nS1_.b28td23g3aB
SysFS ID: /devices/pci0000:00/0000:00:1f.3
SysFS BusID: 0000:00:1f.3
Hardware Class: sound
Model: "Intel Sunrise Point-LP HD Audio"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x9d71 "Sunrise Point-LP HD Audio"
SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
SubDevice: pci 0x1a00
Revision: 0x21
Driver: "snd_hda_intel"
Driver Modules: "snd_hda_intel"
Memory Range: 0xef528000-0xef52bfff (rw,non-prefetchable)
Memory Range: 0xef500000-0xef50ffff (rw,non-prefetchable)
IRQ: 132 (1577 events)
Module Alias: "pci:v00008086d00009D71sv00001043sd00001A00bc04sc03i00"
Driver Info #0:
Driver Status: snd_hda_intel is active
Driver Activation Cmd: "modprobe snd_hda_intel"
Driver Info #1:
Driver Status: snd_soc_skl is active
Driver Activation Cmd: "modprobe snd_soc_skl"
Config Status: cfg=new, avail=yes, need=no, active=unknown
```
```
Linux version 5.3.0-24-generic (buildd@lgw01-amd64-035) (gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)) #26-Ubuntu SMP Thu Nov 14 01:33:18 UTC 2019 (Ubuntu 5.3.0-24.26-generic 5.3.10)
```
```
[ 0.000000] efi: EFI v2.60 by American Megatrends
[ 0.000000] efi: TPMFinalLog=0x8adf0000 ACPI 2.0=0x8a98d000 ACPI=0x8a98d000 SMBIOS=0x8b214000 SMBIOS 3.0=0x8b213000 ESRT=0x884d4e98 MEMATTR=0x8739a018
[ 0.000000] secureboot: Secure boot could not be determined (mode 0)
[ 0.000000] SMBIOS 3.0.0 present.
[ 0.000000] DMI: ASUSTeK COMPUTER INC. VivoBook 15_ASUS Laptop X542UF/X542UF, BIOS X542UF.307 06/13/2019
[ 0.000000] tsc: Detected 1800.000 MHz processor
[ 0.000000] [Firmware Bug]: TSC ADJUST: CPU0: -214721515 force to 0
```
```
kubuntu@kubuntu:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO UART Controller #0 (rev 21)
00:1e.2 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO SPI Controller #0 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point LPC Controller/eSPI Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce MX130] (rev a2)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
```
```
kubuntu@kubuntu:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC294 Analog [ALC294 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
```
FULL DMESG https://pastebin.com/raw/Bwbd846d
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kubuntu 4925 F.... pulseaudio
CasperVersion: 1.435
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
LiveMediaBuild: Kubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191213)
MachineType: ASUSTeK COMPUTER INC. VivoBook 15_ASUS Laptop X542UF
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed maybe-ubiquity quiet splash ---
ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10
RelatedPackageVersions:
linux-restricted-modules-5.3.0-24-generic N/A
linux-backports-modules-5.3.0-24-generic N/A
linux-firmware 1.184
Tags: focal
Uname: Linux 5.3.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/13/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X542UF.307
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X542UF
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX542UF.307:bd06/13/2019:svnASUSTeKCOMPUTERINC.:pnVivoBook15_ASUSLaptopX542UF:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX542UF:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: VivoBook
dmi.product.name: VivoBook 15_ASUS Laptop X542UF
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1856308
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.