Bottom speakers does not work

[TwiN]

The speakers on the sound bar "work", but the speakers at the bottom do not work at all, which makes the overall sound experience underwhelming.

Related: https://forums.lenovo.com/t5/Linux-Discussion/Linux-compatibility-with-Yoga-C930/td-p/4267325

[JonathanReeve]

Did you ever figure this out? I have a Yoga C930, too, and this bug is annoying. I read that it's possible to fix this with hda-jack-retask, but I haven't had any luck yet.

Also, are you having the issue with suspend/sleep draining your battery at about 3% per hour?

[TwiN]

@JonathanReeve I still have the issue with the speaker, but I did fix the issue with battery drain.
Well, "fix".. I simply switched from sleep to hibernate when the lid is closed. The C930 is such a monster that it doesn't even matter -- it's just as fast.

You need to create a swap partition and modify your Kernel parameters to include resume=/dev/<your-swap-partition> and you need to append HandleLidSwitch=hibernate to /etc/systemd/logind.conf.

The kernel parameters can be found in the root README.md and the hibernate support script can be found in scripts/hibernate-support.sh

[JonathanReeve]

Thanks for this! I'd been hesitating to play around with hibernation, because I assumed it'd be slow, but that's really good to know. If you ever figure out the speaker issue, drop a note here!

[TwiN]

See https://github.com/droserasprout/lenovo-yoga-c930-linux#speaker