The laptop has only one set of internal Left-Right speakers. Here's the output for hda_jack_sense_test:
# First headphone jack plugged in (the one that sits closer to the front of the laptop). Pin 0x15 (Black HP Out): present = Yes Pin 0x16 (Black HP Out): present = No Pin 0x19 (Black Mic): present = No # Second headphone jack plugged in. Pin 0x15 (Black HP Out): present = No Pin 0x16 (Black HP Out): present = Yes Pin 0x19 (Black Mic): present = No # No headphones plugged. Pin 0x15 (Black HP Out): present = No Pin 0x16 (Black HP Out): present = No Pin 0x19 (Black Mic): present = No -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1302090 Title: Speaker sound output is mono until a headphone jack is plugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
