I have got the same problem too on Lenovo y720. Speakers sound so tinny, no deeps bass at all, makes the laptop feel so cheap. Subwoofer does not works at all.
I don't know if it's of any help, but when install Ubuntu in virtualbox, I suddenly have at least double the amount of audio settings, everything from subwoofer to deep audio, to bass, to high quality audio is working. Alsamixer also got lots of more settings. In the virtualbox, the audio chip for some reason went from Realtek ALC233 (on native ubuntu), to Analog devices AD1980. The sound card went from just intel HDA on native ubuntu, to Intel 82801AA-ICH. In the virtualbox, the audio chip for some reason went from Realtek ALC233 (on native ubuntu), to Analog devices AD1980. The sound card went from just intel HDA on native ubuntu, to Intel 82801AA-ICH -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553685 Title: Lenovo Y700-17ISK subwoofer doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1553685/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
