Hello there
I just installed manjaro yesterday, and then I found that there is no output sound(dummy output), futunately solved.
But, today I found that MY INTERNAL MIC DID NOT WORK. ( Analog Input - Build-in Audio).
inxi -Fzxxxa
System:
Kernel: 5.15.0-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.15-x86_64
root=UUID=d2863af8-6f52-4022-973e-0340030c3b83 rw quiet splash apparmor=1
security=apparmor resume=UUID=5b27f6e2-1133-41cc-90e2-a74fb8669037
udev.log_priority=3 snd_hda_intel.dmic_detect=0
Desktop: GNOME tk: GTK 3.24.30 wm: gnome-shell dm: GDM
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: Acer product: Swift SF314-54G v: V1.17
serial: <filter>
Mobo: KBL model: Strongbow_KL v: V1.17 serial: <filter> UEFI: Insyde
v: 1.17 date: 04/16/2021
Battery:
ID-1: BAT0 charge: 34.2 Wh (97.7%) condition: 35.0/48.9 Wh (71.5%)
volts: 16.4 min: 15.2 model: LGC AC14B8K type: Li-ion serial: <filter>
status: Charging
CPU:
Info: Quad Core model: Intel Core i5-8250U bits: 64 type: MT MCP
arch: Kaby Lake note: check family: 6 model-id: 8E (142) stepping: A (10)
microcode: EA cache: L2: 6 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 28808
Speed: 800 MHz min/max: 400/3400 MHz Core speeds (MHz): 1: 800 2: 800
3: 800 4: 800 5: 800 6: 800 7: 800 8: 800
Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel UHD Graphics 620 vendor: Acer Incorporated ALI
driver: i915 v: kernel bus-ID: 00:02.0 chip-ID: 8086:5917 class-ID: 0300
Device-2: NVIDIA GP108M [GeForce MX150] vendor: Acer Incorporated ALI
driver: nvidia v: 470.63.01 alternate: nouveau,nvidia_drm bus-ID: 01:00.0
chip-ID: 10de:1d10 class-ID: 0302
Device-3: Sunplus Innovation HD User Facing type: USB driver: uvcvideo
bus-ID: 1-7:4 chip-ID: 1bcf:2cb0 class-ID: 0e02
Display: x11 server: X.org 1.20.13 compositor: gnome-shell driver:
loaded: modesetting,nvidia alternate: fbdev,nouveau,nv,vesa
resolution: <missing: xdpyinfo>
OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2)
v: 4.6 Mesa 21.2.2 direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Acer Incorporated ALI
driver: snd_hda_intel v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3
chip-ID: 8086:9d71 class-ID: 0401
Sound Server-1: ALSA v: k5.15.0-1-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.37 running: yes
Network:
Device-1: Intel Wireless 7265 driver: iwlwifi v: kernel port: 3000
bus-ID: 02:00.0 chip-ID: 8086:095a class-ID: 0280
IF: wlp2s0 state: up mac: <filter>
Bluetooth:
Device-1: Intel Bluetooth wireless interface type: USB driver: btusb
v: 0.8 bus-ID: 1-5:3 chip-ID: 8087:0a2a class-ID: e001
Report: rfkill ID: hci0 rfk-id: 2 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
RAID:
Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
v: 3.0 port: 4060 bus-ID: 00:17.0 chip-ID: 8086.282a rev: 21
class-ID: 0104
Drives:
Local Storage: total: 1.03 TiB used: 17.46 GiB (1.7%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/sda maj-min: 8:0 vendor: Toshiba model: MQ04ABF100
size: 931.51 GiB block-size: physical: 4096 B logical: 512 B
speed: 6.0 Gb/s type: HDD rpm: 5400 serial: <filter> rev: 1J scheme: GPT
ID-2: /dev/sdb maj-min: 8:16 vendor: TeamGroup model: TM8PS7128G
size: 119.24 GiB block-size: physical: 512 B logical: 512 B
speed: 6.0 Gb/s type: SSD serial: <filter> rev: 2B0 scheme: GPT
Partition:
ID-1: / raw-size: 110.15 GiB size: 107.86 GiB (97.92%)
used: 17.46 GiB (16.2%) fs: ext4 dev: /dev/sdb2 maj-min: 8:18
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 432 KiB (0.1%) fs: vfat dev: /dev/sdb1 maj-min: 8:17
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%)
priority: -2 dev: /dev/sdb3 maj-min: 8:19
Sensors:
System Temperatures: cpu: 57.0 C mobo: 52.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 260 Uptime: 31m wakeups: 3189 Memory: 7.65 GiB
used: 1.81 GiB (23.7%) Init: systemd v: 249 tool: systemctl Compilers:
gcc: 11.1.0 Packages: pacman: 1121 lib: 289 flatpak: 0 Shell: Zsh v: 5.8
running-in: gnome-terminal inxi: 3.3.06
pacman -Qi pipewire ✔
Name : pipewire
Version : 1:0.3.37-1
Description : Low-latency audio/video router and processor
Architecture : x86_64
URL : https://pipewire.org
Licenses : MIT LGPL
Groups : None
Provides : libpipewire-0.3.so=0-64
Depends On : rtkit alsa-card-profiles libdbus-1.so=3-64
libncursesw.so=6-64 libsndfile.so=1-64 libudev.so=1-64
libusb-1.0.so=0-64 libasound.so=2-64 libsystemd.so=0-64
libbluetooth.so=3-64 libsbc.so=1-64 libldacBT_enc.so=2-64
libfreeaptx.so=0-64 libfdk-aac.so=2-64
libwebrtc_audio_processing.so=1-64
Optional Deps : pipewire-docs: Documentation
pipewire-media-session: Default session manager [installed]
pipewire-alsa: ALSA configuration [installed]
pipewire-jack: JACK support [installed]
pipewire-pulse: PulseAudio replacement
gst-plugin-pipewire: GStreamer support [installed]
pipewire-zeroconf: Zeroconf support
Required By : gst-plugin-pipewire pipewire-jack pipewire-media-session
xdg-desktop-portal
Optional For : google-chrome sdl2
Conflicts With : None
Replaces : None
Installed Size : 7.01 MiB
Packager : Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Build Date : Thu 23 Sep 2021 06:00:42 PM
Install Date : Tue 28 Sep 2021 03:37:47 AM
Install Reason : Installed as a dependency for another package
Install Script : Yes
Validated By : Signature
My original kernel version is 5.13, but sb said 5.15 might help, so i tried, but didn’t. Sad 
Please help me find a solution if possible. 
