Here is my "investigation" The microphones in Vostro 1400 are working. The trick is following.
Run the 'alsamixer', set 1."Digital" -> "Digital" This settings activates the front microphone above the screen. Run the 'alsamixer', set 1."Digital" -> "Analog I" 2."Front Mi" -> "Mic In" 3.In "Sound Proferences" choose "Microphone 2" in the "Input" tab. These settings do activating the line-in microphone below the touch pad. Tested on Ubuntu 9.10. -- External microphone jack not working on Dell Studio 1735 notebook. https://bugs.launchpad.net/bugs/479410 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