https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=f47e5dc464251f661da9495fcbf003a0d22c1360
refer to alsa info in above patch http://www.alsa- project.org/db/?f=8c7dfe857ceff462ca2de133e67023c0f68de9cb 00:1b.0 0403: 8086:9c20 (rev 04) Subsystem: 1028:060a Codec: Realtek ALC668 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x10ec0668 Subsystem Id: 0x1028060a Revision Id: 0x100003 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1402194 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1402194/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs