Comment 153 for bug 1958019

(In reply to Vincent Morel from comment #137)
> (In reply to DavidLenovo from comment #134)
> > (In reply to Vincent Morel from comment #130)
> > > (In reply to DavidLenovo from comment #127)
> > > > (In reply to Vincent Morel from comment #125)
> > > > > On the 13S Gen 2, there is only 2 speakers, and S3 is activated...
> > > >
> > > > Hi, I have similar result in hwinfo --sound, but it's not exactly the
> > same
> > > > card.
> > > >
> > > > Your have only 2 speakers working ? Ore no one ?
> > > >
> > > > You have try Ubuntu 20.04 with kernel 5.11.5 ?
> > >
> > > No speaker working (but headphone, hdmi... are working).
> > >
> > > I did not try kernel 5.11.5 (My Pop Os is in 5.11.0 but I remember trying
> > > Ubuntu 21.04 and there was no sound also).
> >
> > (In reply to Vincent Morel from comment #132)
> > > (In reply to DavidLenovo from comment #127)
> > > > (In reply to Vincent Morel from comment #125)
> > > > > On the 13S Gen 2, there is only 2 speakers, and S3 is activated...
> > > >
> > > > Hi, I have similar result in hwinfo --sound, but it's not exactly the
> > same
> > > > card.
> > > >
> > > > Your have only 2 speakers working ? Ore no one ?
> > > >
> > > > You have try Ubuntu 20.04 with kernel 5.11.5 ?
> > >
> > > Just tried with kernel 5.11.5... No luck...
> > >
> > > How ACL3306 not recognise, can we find some spec or information about it?
> > > Seems Realtek codec information is nowhere to be found... :(
> >
> > Could you recheck, please :
> > cat /sys/power/mem_sleep
> >
> > sudo dmesg |grep ACPI|grep supports
> >
> > Do you have try, to play a long sound with VLC, y choose PulseAudio Server
> > if it is available, on another session I just have sof-hda-dsp Speaker +
> > Headphone (it work on both). If your change the sound output, stop and
> > restart the sound.
> > Let the sound playing and put in sleep, put the computer on, and the sound
> > work. It lagging for me at the beginning, and after few seconds it is ok.
> >
> > You have ALC287 or ALC3306 ? You seem to have ALC3306, no ?
> > Not sure Ubuntu is work well for it.
> >
> > I think your problem is to enable S3.
> > It is probably not the same patch for you with you Lenovo Think Book 13s
> Gen
> > 2. The patch is for Yoga 7i 14" and 15"
> >
> > The user Wave could you help me more I think, my knowledge is limited.
>
> Sure thanks, here is my outputs! :)
> cat /sys/power/mem_sleep
> [s2idle] deep
>
> sudo dmesg |grep ACPI|grep supports
> [ 0.242864] ACPI: (supports S0 S3 S4 S5)
>
> VLC -> played long song, plugged headphone (sound on headphone works),
> changing output to speaker, no sound (note that sound meter show sound in
> preference, but sounds do not output to the speaker).
>
> Put computer into sleep while playing. After resume, still no sound in
> speaker...
>
> I have ALC3306. The only "not Ubuntu" I tried was Calculate Linux (Gentoo).
> I use PopOs, tried Ubuntu 21.04 also.
>
> Only informations I found on the web always point back here.
>
> Some infos: https://afterhourscoding.wordpress.com/tag/backlight/
> And the kernel part:
> https://github.com/torvalds/linux/blob/master/sound/pci/hda/patch_realtek.c
>
> At this point I fear it's becoming little too hard for me, but I can still
> try to do something.
>
> If I understand well this sentence 'According to Jaroslav Kysela Lenovo is
> using amplifier chips for the integrated speakers on recent hardware which
> must be initialized too. Much of that is undocumented.' we have to find a
> way to initialize the amplifier chip...

For a quick test without having to change your grub config you can also run
echo deep > /sys/power/mem_sleep
as root and then try playing sound and hibernating again.