This is solved by using nvidia drivers 190.16 beta. I have used the vdpau ppa ones but is presumably that doesn't matter the install method.
** Changed in: nvidia-graphics-drivers-180 (Ubuntu) Status: New => Confirmed -- No sound while in x display with nvidia driver and acpi=on https://bugs.launchpad.net/bugs/392938 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs