Comment 77 for bug 580183

@Juan
Thanks :) I think you may have just given me a solid lead.

@Everyone else
I'm unable to flash the BIOS (as an anti-theft measure, the BIOS has been locked by the vendor on the machine I have so that if it is stolen, the image asking people to call the support line if they have received the laptop isn't removable). So can someone have a go at flashing their BIOS with the latest version (I've currently got 0904 on this laptop but it should be 1104) and confirm whether this exhibits the behaviour Juan has described:
Running linux-image-2.6.35-23, with alsa-base 1.0.23. Putting the computer to sleep and waking it up seems to make the internal microphone work. The external microphone still isn't working but this shouldn't be too hard to figure out once we've got the internal mic working (hopefully).