When I bought my Carbon X1 laptop a few years ago, the sound card was new and not yet well supported by Linux. (I knew that before I bought, and decided it was a good gamble that support would improve soon.)
Early on, there was a long thread on Lenovo's forum discussing, in particular, how to get the microphone working. The key, apparently, was the SOF (Sound Open Firmware) support, which was standard in the 5.3 Linux kernel that came with Ubuntu 10.10, but needed an elaborate script to get working in earlier kernels.
It worked fine on Ubuntu. But under Debian, the built-in
mic didn't work.
[ 11:15 Mar 20, 2022 More linux/laptop | permalink to this entry | ]