Thanks. I restored the original /etc/modprobe.d/alsa-base.conf and installed the "Crack of the day" drivers per https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules. Alas, no change. Builtin mic does not work, builtin speakers and external mic/headphones do work. I'm testing this by looking at the Sound Preferences "Input level" and also via Sound Recorder.
ben@tp:~$ dpkg -l linux-alsa-driver'*'
ii linux-alsa-driver-modules-2. 2.6.35-23.201011301600 Ubuntu-supplied Linux modules for version 2.6.35-23-generic-pae ALSA sna
Thanks. I restored the original /etc/modprobe. d/alsa- base.conf and installed the "Crack of the day" drivers per https:/ /wiki.ubuntu. com/Audio/ InstallingLinux AlsaDriverModul es. Alas, no change. Builtin mic does not work, builtin speakers and external mic/headphones do work. I'm testing this by looking at the Sound Preferences "Input level" and also via Sound Recorder.
ben@tp:~$ dpkg -l linux-alsa- driver' *'
ii linux-alsa- driver- modules- 2. 2.6.35- 23.201011301600 Ubuntu-supplied Linux modules for version 2.6.35- 23-generic- pae ALSA sna