I have the same issue with the same hardware. Running latest (21/10) updated 
karmic beta.
The external jack microphone works fine.
I have noticed one thing though. If I run gnome alsa mixer with working 
microphone I get picture like the first screenshot:
the mic and capture channels are switched on recording and PA control shows 
signal from the ext mic. 
When I switch internal Mic checkbox I get the second screen: BOTH mic & Capture 
channels are switched off (rec) and 
in PA sound control the Mute checkbox appears. There is no signal from the 
internal mic. If I switch capture rec on in gnome-alsamixer (third screen) 
there is still no signal in PA control and no signal from the mic and the Mute 
check stays put. If I unmute the PA control in the right window the Internal 
mic is switched off and mic switched on - back to the first screen situation.
It is the same if I put model=thinkpad in alsa-base.conf or not.

** Attachment added: "Working external mic"
   http://launchpadlibrarian.net/34104619/external_mic_working.png

-- 
Internal microphone does not work
https://bugs.launchpad.net/bugs/440251
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to