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-X, which is subscribed to nvidia-graphics-drivers-180 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp