Luke, in the end, I tried all of the model options that were listed in patch_conexant.c. However, I was not as systematic as I should have been and did not record in detail how each of them performed, partly because the results were inconsistent and variable. Some options initially appeared to give me a working microphone, but later failed after a reboot, or after I ran skype, etc. The symptom that I was seeing was the failure of the microphone to provide any response on the vu meter in the sound preferences dialog. I also noticed that alsamixer did not seem to provide appropriate controls for the microphone, but this varied depending on the chosen model quirk.
I guess to document this properly I would need try each model quirk in turn and put it through a standard set of tests. This could take some time because the two notebooks I am dealing with belong to family members who live elsewhere, so I don't have continuous access to them. Thanks, Mal. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/789718 Title: Lenevo Edge 13 internal microphone not working. [, Conexant CX20582 (Pebble), Mic, Internal] No sound at all -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
