Ok, here are some manjaro posts about a C930:
- Microphone on Lenovo Yoga C930 not working - #10 by nikgnomic
- Sound card not being recognized by ALSA on Lenovo Yoga C930 - #2 by nikgnomic
- No sound for Lenovo C930 with kernels > 5.4
…and a workaround on GitHub - GitHub - droserasprout/lenovo-yoga-c930-linux: Varions fixes to provide full hardware support of Lenovo Yoga C930 on Linux
…is sof-firmware installed ?
Let’s call out @nikgnomic, he knows a lot about sound problems.
Edit:
- BIOS Update
- 8GCN37WW
- 28 Jan 2021
- 6.58 MB
- Critical
- laptops and netbooks :: yoga series :: yoga c930 13ikb glass - Lenovo Support US
Please confirm the correctness of this link with the serial number of your device.