An update: To sum up the previous posts in this thread: The problem with the internal Realtek ALC3246 soundcard of my Dell Vostro 5568 laptop in Ubuntu (tested with 16.04 and 16.10) seems to be related to the suspend function. The sound stops working after laptop is suspended and sound cannot be recovered unless Ubuntu (or Windows) is reinstalled.
Workaround: I have now tested three USB sound cards to work around the issue with the internal sound card: - Deltaco UAC-03 (cheep, and bad sound quality but works out of the box ) - SD-UAUDV2-C119 SDM USB 2.0, 7.1 surround, Xear 3D (cheep, medium sound quality, works out of the box ) - Creative Sound Blaster X-Fi HD (expensive, but excellent sound quality, SPDIF output is not working out of the box) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1636905 Title: Sound card not recognized on Dell Vostro 5568 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1636905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
