I have the same issue with almost the same laptop, mine is a Toshiba Satellite U405-S2856. Notice that this bug is duplicated in https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/575598, so that makes at least 3 of us.
I have noticed that USB mics do work.
I have the same issue with almost the same laptop, mine is a Toshiba Satellite U405-S2856. Notice that this bug is duplicated in https:/ /bugs.launchpad .net/ubuntu/ +source/ alsa-driver/ +bug/575598, so that makes at least 3 of us.
I have noticed that USB mics do work.