Comment 288 for bug 1958019

(In reply to Cameron Berkenpas from comment #273)
> Created attachment 297583 [details]
> linux-5.12.12-legion-sound-0.0.4.patch - updated headphone fix, more models
> supported
>
> I've updated the headphone fix. The automute_hook wasn't the fix. Simply
> having an automute_hook defined means snd_hda_gen_update_outputs() is not
> called. The call to snd_hda_gen_update_outputs() results in do_automute()
> being called, which shuts down the speakers putting them into a state where
> they need to be re-initialized. Setting automute_speaker to off avoids
> do_automute() breaking the speakers and it seems we can trust the hardware
> to do the right thing.
>
> So please test without any of the other work arounds. Make sure speaker
> output resumes after unplugging headphones while sound is playing.
>
> The good news is that this patch should now affect more than the original
> 2020 Legion. Here are the models that can test this patch:
> Lenovo Legion 7i
> Legion 7 16ACHg6 (2021)
> Lenovo Yoga 7 14ITL5
> Yoga 14cITL 2021
>
> In the case of the last 2 models, you should only see output from one
> speaker as the same verbs are being applied as in verbs-working.txt (for
> now).
>
> In the case of the 16ACHg6, I have no idea what to expect. Depends if the
> speakers require the same (or very similar) initialization sequence or not.

I have a Legion 7 2020 (alsa-info here:http://alsa-project.org/db/?f=c62e1da70c65a4709d137b2a48204cd6ebdeaaa1) and a bit of a Linux newbie. I'm on Pop_OS; would you explain how to apply this patch? My headphone/usb headphones work fine but speakers aren't working.