The problem seems to be at kernel level. Do you have an older kernel you can boot instead, and if so, does it work?
Also, do you get any error messages (including messages in dmesg) when trying to load the snd-hda-intel module manually with this command? sudo modprobe snd-hda-intel ** Summary changed: - PCI/internal sound card not detected + [Asus P5Q3 deluxe] PCI/internal sound card not detected ** Tags added: regression-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1035474 Title: [Asus P5Q3 deluxe] PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1035474/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
