Comment 322 for bug 1958019

Woody is reporting the same thing also with 5.8.0. Either The
snd-hda-intel patches are no good for the Yoga 7 and/or 5.8.0 may not be
recent enough for some reason.

Woody did say that the kernel patches do work , fortunately.

Is the yoga7-alc287-0.0.5.patch working on anyone's Yoga 7?

On 6/25/21 5:55 PM, <email address hidden> wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=208555
>
> --- Comment #308 from Dre (<email address hidden>) ---
> (In reply to Cameron Berkenpas from comment #296)
>> Created attachment 297621 [details]
>> yoga7-alc287-0.0.5.patch - snd-hda-intel patch for Yoga 7 models
>>
>> This is another snd-hda-intel patch. _NOT_ a kernel patch.
>>
>> This works for the Yoga 7. AFAIK, it should cover at least both the Yoga 7
>> 14ITL5 and the 14cITL. I think these are likely Yoga 7 models for different
>> regions.
>>
>> If yours doesn't work, please let us know what steps you took to try the
>> patch and what specifically doesn't work.
>>
>> 1. Download the "yoga7-alc287-0.0.5.patch" from this bug.
>>
>> 2. Copy it to /lib/firmware/yoga-alc287.patch. Ie, "sudo cp
>> yoga-alc287-0.0.5.patch /lib/firmware/yoga7-alc287.patch"
>>
>> 3. Create/open "/etc/modprobe.d/lenovo-fix.conf" in your favorite text
>> editor. Ie, "sudo nano -w /etc/modprobe.d/lenovo-fix.conf"
>>
>> 4. Set the contents of "/etc/modprobe.d/lenovo-fix.conf" to be following
>> then save and exit:
>> # Patch file to enable output on speakers.
>> options snd-hda-intel patch=yoga7-alc287.patch
>>
>> 5. Reboot
>>
>> 6. Test your sound (including with plugging and unplugging headphones while
>> sound is playing) and report back here with your results.
>>
>> NOTE: To disable the patch, remove /etc/modprobe.d/lenovo-fix.conf and
>> reboot.
>>
>> This patch file should work as well or better than applying verbs-yoga7.txt
>> or as well as using the kernel patch (provided your model is supported by
>> the patch).
>>
>> Some more info on snd-hda patch files can be found here for those wanting to
>> experiment:
>> https://www.kernel.org/doc/html/latest/sound/hd-audio/notes.html
> I performed the above steps on a Yoga 7 14ITL5 (reporting "Realtek ALC287"
> from
> alsa-info) running Elementary OS 6 beta (Ubuntu 20.04 LTS) with kernel
> 5.8.0-55. It did not work. Only speakers do not work. All other audio
> (headphones, HDMI, bluetooth) works.
>