I'm having trouble with suspend/hibernate on my computer. After resuming from suspend/hibernate, there's no sound at all in Ubuntu. The volume control is not muted, but no sounds play from Ubuntu or any application. The only fix I know is to restart Ubuntu.

When I ran Windows on this computer, there was no problems with sound after resuming from suspend/hibernate.

My motherboard is an Asus P5K SE, and my sound card is an Asus Xonar DX.

Any help would be greatly appreciated.