Re: Anyone know how to get sound on a 12th Gen Alder Lake based laptop?

From: Christos Margiolis <christos_at_freebsd.org>
Date: Mon, 22 Apr 2024 15:44:21 UTC
Hello Chris,

Chris wrote:
> On 2024-04-15 07:56, Christos Margiolis wrote:
> > Hello Chris,
> > 
> > Chris wrote:
> > > I've read everything I can find on the subject. But have not been
> > > unable to produce sound on my Lenovo Ideapad 2. It's a 12th Gen
> > > Alder platform. Following are all the details. If anyone has had
> > > success, or knows how to get sound. Please share your info.
> > 
> > Could you please set dev.hdac.0.pindump=1 and attach the output shown in
> > dmesg(8)?
> Thank you very much for taking the time to help, Christos!
> I haven't needed to tweak sound since 8.4. Everything is completely
> different now. But the output from dmesg(8) appears to say everything
> is disabled. :(
>
> [...]
> 
> I've placed a copy here in case your MUA mangles the output in this message:
> https://bitpit.us/ALC257-tmp

Can you add the following lines to /boot/device.hints, reboot and test
whether your headphones and speakers work?

hint.hdac.0.cad0.nid20.config="as=1 seq=0"
hint.hdac.0.cad0.nid33.config="as=1 seq=15"

Christos