# Ubuntu 23.04 no sound

## LG Gram Style 16'

耳機有聲音，藍芽有聲音，內建喇叭無聲音

麥克風正常

### reverse-engineering
https://github.com/thesofproject/linux/issues/4363

[reverse windows audio driver](https://thesofproject.github.io/latest/getting_started/intel_debug/suggestions.html#reverse-engineer-the-windows-audio-driver)

### update sof-bin

[sof-bin issue](https://github.com/clearlinux/distribution/issues/2924)

update 2.2.6


dmesg


### sof-firmware package

[alsa firmware](https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture#ALSA_firmware)

[firmware-sof-signed](https://launchpad.net/ubuntu/+source/firmware-sof)

### debug msg