[ALC294, ASUS UX461UA] No sound coming out of speakers

[Gabriel Cabana]

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.0.0-37-generic 5.0.0-37.40~18.04.1
ProcVersionSignature: Ubuntu 5.0.0-37.40~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-37-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Dec 19 16:14:48 2019
InstallationDate: Installed on 2019-12-19 (0 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

$ 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

$ cat /proc/asound/cards
 0 [PCH ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xef228000 irq 142

$ hwinfo --sound
17: PCI 1f.3: 0403 Audio device
  [Created at pci.378]
  Unique ID: nS1_.7OVTYSC7G61
  SysFS ID: /devices/pci0000:00/0000:00:1f.3
  SysFS BusID: 0000:00:1f.3
  Hardware Class: sound
  Model: "Intel Audio device"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x9d71
  SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
  SubDevice: pci 0x1c90
  Revision: 0x21
  Driver: "snd_hda_intel"
  Driver Modules: "snd_hda_intel"
  Memory Range: 0xef228000-0xef22bfff (rw,non-prefetchable)
  Memory Range: 0xef200000-0xef20ffff (rw,non-prefetchable)
  IRQ: 142 (2628 events)
  Module Alias: "pci:v00008086d00009D71sv00001043sd00001C90bc04sc03i00"
  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

[Gabriel Cabana (cabg2101)]

If anyone knows the detailed procedure to fix this and can write it down, I'll do it. I want to get rid of this issue ASAP. No sound from any source (speakers, earplugs, Bluetooth headphones, microphone) is really annoying.