Lenovo i7 laptop and sound was working fine, then stopped recently. I am not sure exactly when because I often don’t use sound.
Status:
Sound works for a few seconds after boot then stops.
I can see the sound responding but nothing comes out.
I tried headphones with the same result.
I decided to install pulse to replace pipewire, which did not resolve the issue. I reinstalled pipewire and now headphones work.
Speaker still do not work.
How to I solve this?
What kernel are you using?
Have you given the linux-lts kernel a go, to see if it might be an issue specific to the mainline kernel?
Which sound server are you using ? - Pipewire or Pulseaudio ?
Is the sound volume set to 100% in ALSA ?
I am running basically a new EndeavorOS install. I would not even know how to change kernels.
Simply install the packages linux-lts and linux-lts-headers the reboot and select the lts kernel from the options presented.
You should also install base-devel and pacman-contrib.
The Same Problem. Clear Install latest version no sound. Huawei Mate 16S. I tried lts kernel. No result
Three different systems and they could all have different hardware for audio. 
I am at a loss. When I reboot sound will work for a few minutes then just stop and go silent.
There was a pipewire update yesterday or day before I think? Whoa nope, back last week…
What is the output of inxi -Aa
inxi -Aa
Audio:
Device-1: Intel Raptor Lake High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel alternate: snd_soc_avs,snd_sof_pci_intel_tgl
bus-ID: 00:1f.3 chip-ID: 8086:7a50 class-ID: 0403
Device-2: NVIDIA vendor: Lenovo driver: snd_hda_intel v: kernel pcie:
gen: 1 speed: 2.5 GT/s lanes: 16 link-max: gen: 4 speed: 16 GT/s
bus-ID: 01:00.1 chip-ID: 10de:22bb class-ID: 0403
API: ALSA v: k6.14.3-arch1-1 status: kernel-api
tools: alsactl,alsamixer,amixer
Server-1: PipeWire v: 1.4.2 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
4: pw-jack type: plugin tools: pactl,pw-cat,pw-cli,wpctl
