Manjaro xfce fresh install but no sound

hello,all. I just switched from gallium os to Manjaro xcfe yesterday. manjaro looks a lot nicer than the gallium os, except now I came across with the no sound issue, there is only option “dummy output” in the pulseaudio volume control. I have tried sof-firmware and pulseaudio 13.99,still not working. My device is a chromebook Asus c302. please help the rookie, thank you very much!

Machine:

Type: Laptop System: Google product: Cave v: 1.0

serial: <superuser/root required>

Mobo: Google model: Cave v: 1.0 serial: <superuser/root required>

UEFI: coreboot v: MrChromebox-4.12 date: 06/04/2020

CPU:

Info: Dual Core model: Intel Core m3-6Y30 bits: 64 type: MT MCP

L2 cache: 4096 KiB

Speed: 800 MHz min/max: 400/2200 MHz Core speeds (MHz): 1: 800 2: 801

3: 800 4: 801

Graphics:

Device-1: Intel HD Graphics 515 driver: i915 v: kernel

Device-2: IMC Networks USB2.0 HD UVC WebCam type: USB driver: uvcvideo

Display: x11 server: X.Org 1.20.9 driver: i915 note: display driver n/a

resolution: 1920x1080~60Hz

OpenGL: renderer: Mesa Intel HD Graphics 515 (SKL GT2) v: 4.6 Mesa 20.2.2

Audio:

Device-1: Intel Sunrise Point-LP HD Audio driver: snd_soc_skl

Sound Server: ALSA v: k5.8.18-1-MANJARO

Drives:

Local Storage: total: 58.24 GiB used: 8.76 GiB (15.0%)

ID-1: /dev/mmcblk0 vendor: HP model: DF4064 size: 58.24 GiB

Partition:

ID-1: / size: 56.79 GiB used: 8.76 GiB (15.4%) fs: ext4

dev: /dev/mmcblk0p2

inxi --audio:
Audio:Device-1: Intel Sunrise Point-LP HD Audio driver: snd_soc_skl
Sound Server: ALSA v: k5.8.18-1-MANJARO

pacmd list-cards
0 cards available

Hi @Therookielinx :wink:

Maybe this helps: ASUS C302 - ArchWiki

Thank you. my headphone doesn’t have sound either, I wish it works at least for the headphone. change the audio firmware,how?