post the output of lspci -vvvv
find the hda audio controller and it pci bus, device and check the system log whether it can claim BAR from pci system seem some pci device cannot claim 0.215733] pci 0000:00:1f.2: can't claim BAR 5 [mem 0x0000fc00-0x0000ffff]: no compatible bridge window [ 0.215742] Expanded resource reserved due to conflict with PCI Bus 0000:00 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1438360 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1438360/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
