I am experiencing the same scenario. My x220 had properly working microphone/sound up until about 4-6 weeks ago. Something I did/installed seems to have brought this problem about. I can follow the instructions for verifying the inverted microphone, but oddly my situation is reversed. I need to completely mute the left channel (not the right as indicated in the inverted microphone ticket).
As well, I was unable to install the the .deb file from the inverted microphone ticket, the issue being that it seems that the fixes in the .deb file may already be in my kernel. Any help would be greatly appreciated. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1072146 Title: [Lenovo Thinkpad X220, Conexant CX20590] No microphone input To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1072146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
